www.Fisher.com Fisher r EZ easy-et Control Valve Contents Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . Description 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Packing Lubrication 5 . . . . . . . . . . . . . . . . . . . . . . . Packing Maintenance 6 . . . . . . . . . . . . . . . . . . . . . . Replacing Packing 8 . . . . . . . . . . . . . . . . . . . . . . . Trim Maintenance 10 . . . . . . . . . . . . . . . . . . . . . . . . Disassembly 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . Lapping Metal Seats on Valves with Plain and Extension Bonnets 12 . . . . . . . . . . . . . . . . Assembly 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENVIRO-SEALt Bellows Seal and Bonnet 15 . . Replacing a Plain or Extension Bonnet with an ENVIRO-SEAL Bellows Seal (Stem/Bellows Assembly) and Bonnet 15 . . . Replacing an Installed ENVIRO-SEAL Bellows Seal (Stem/Bellows Assembly) 17 . . Purging the ENVIRO-SEAL Bellows Seal Bonnet 18 . . . . . . . . . . . . . . . . . . Parts Ordering 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Kits 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts List 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction Scope of Manual This instruction manual includes installation, maintenance, and parts information for NPS 1/2 through 4 Fisher EZ valves through CL600 ratings. Refer to separate manuals for instructions covering the actuator and accessories. Do not install, operate, or maintain an EZ valve without first D being fully trained and qualified in valve, actuator, and accessory installation, W8120A-1 Figure 1. Fisher EZ Valve with 657 Actuator and DVC6000 Digital Valve Controller operation, and maintenance, and D carefully reading and understanding the contents of this manual. If you have any questions about these instructions, contact your Emerson Process Management sales office before proceeding. Description EZ valves (figure 1) are globe-style with integral end connections, post guiding, and quick-change trim. These valves are used in chemical or hydrocarbon processing applications or in applications that require control of nonlubricating, viscous, or other hard-to-handle fluids. Instruction Manual D100401X012 December 2008 EZ Valve
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Scope of ManualThis instruction manual includes installation,maintenance, and parts information for NPS 1/2through 4 Fisher EZ valves through CL600 ratings.Refer to separate manuals for instructions coveringthe actuator and accessories.
Do not install, operate, or maintain an EZ valvewithout first � being fully trained and qualified invalve, actuator, and accessory installation,
W8120A-1
Figure 1. Fisher EZ Valve with 657 Actuator and DVC6000Digital Valve Controller
operation, and maintenance, and � carefully readingand understanding the contents of this manual. Ifyou have any questions about these instructions,contact your Emerson Process Management salesoffice before proceeding.
DescriptionEZ valves (figure 1) are globe-style with integral endconnections, post guiding, and quick-change trim.These valves are used in chemical or hydrocarbonprocessing applications or in applications thatrequire control of nonlubricating, viscous, or otherhard-to-handle fluids.
Instruction ManualD100401X012December 2008 EZ Valve
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Table 1. Specifications
End Connection Styles
Cast Iron ValvesFlanged: CL125 flat-face or 250 raised-faceflanges per ASME B16.1Steel and Stainless Steel ValvesFlanged: CL150, 300, and 600 raised-face orring-type joint flanges per ASME B16.5Screwed or Socket Welding: Consistent withASME B16.11Buttwelding: All available ASME B16.25schedules that are consistent with ASME B16.34
Maximum Inlet Pressure(1)
Cast Iron ValvesFlanged: Consistent with CL125B or 250B perASME B16.1Steel and Stainless Steel ValvesFlanged: Consistent with CL150, 300, or 600 perASME B16.34Screwed or Welding: Consistent with CL600 perASME B16.34
Shutoff Classifications per ANSI/FCI 70-2and IEC 60534-4
Metal Seats: Class IV is standard, Class V isoptionalPTFE Composition Seats: Class VI
Flow Characteristics
� Equal percentage, � quick opening, and� linear
Flow Direction
Up through the seat ring
Approximate Weights
NPS 1/2 and 3/4 Valves: 9.1 kg (20 pounds)NPS 1 Valve: 11 kg (25 pounds)NPS 1-1/2 Valve: 18 kg (40 pounds)NPS 2 Valve: 36 kg (80 pounds)NPS 3 Valve: 54 kg (120 pounds)NPS 4 Valve: 75 kg (165 pounds)
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
SpecificationsTypical specifications for these valves are shown intable 1.
Installation
WARNING
Always wear protective gloves,clothing, and eyewear whenperforming any installation operationsto avoid personal injury.
Personal injury or equipment damagecaused by sudden release of pressuremay result if the valve assembly isinstalled where service conditionscould exceed the limits given in table 1or on the appropriate nameplates. Toavoid such injury or damage, provide arelief valve for overpressure protectionas required by government oraccepted industry codes and goodengineering practices.
Check with your process or safetyengineer for any additional measuresthat must be taken to protect againstprocess media.
If installing into an existingapplication, also refer to the WARNINGat the beginning of the Maintenancesection in this instruction manual.
CAUTION
When ordered, the valve configurationand construction materials wereselected to meet particular pressure,temperature, pressure drop, andcontrolled fluid conditions.Responsibility for the safety ofprocess media and compatibility ofvalve materials with process mediarests solely with the purchaser andend-user. Since some body/trimmaterial combinations are limited intheir pressure drop and temperatureranges, do not apply any otherconditions to the valve without firstcontacting your Emerson ProcessManagement sales office.
1. Before installing the valve, inspect it and anyassociated equipment for damage and any foreignmaterial. Make certain the valve interior is clean, thatpipelines are free of foreign material, and that thevalve is oriented so that pipeline flow is in the samedirection as the arrow on the side of the valve.
2. The control valve assembly may be installed inany orientation unless limited by seismic criteria.However, the normal method is with the actuatorvertical above the valve. Other positions may resultin uneven valve plug and seat ring retainer wear,and improper operation. With some valves, theactuator may also need to be supported when it isnot vertical. For more information, consult yourEmerson Process Management sales office.
3. Use accepted piping and welding practices wheninstalling the valve in the line. Internal elastomericparts may stay in place during the weldingprocedure. For flanged valves, use a suitable gasketbetween the valve body flange and pipeline flanges.
CAUTION
Depending on valve body materialsused, post weld heat treating may berequired. If so, damage to internalelastomeric and plastic parts, as wellas internal metal parts is possible.Shrunk-fit pieces and threaded
connections may also loosen. Ingeneral, if post weld heat treating is tobe performed, all trim parts should beremoved. Contact your EmersonProcess Management sales office foradditional information.
4. With a leak-off bonnet construction, remove thepipe plugs (key 14) to hook up the leak-off piping. Ifcontinuous operation is required during inspection ormaintenance, install a three-valve bypass around thecontrol valve assembly.
5. If the actuator and valve are shipped separately,refer to the actuator mounting procedure in theappropriate actuator instruction manual.
WARNING
Personal injury could result frompacking leakage. Valve packing wastightened before shipment; however,the packing might require somereadjustment to meet specific serviceconditions. Check with your processor safety engineer for any additionalmeasures that must be taken toprotect against process media.
Valves with ENVIRO-SEAL live-loaded packing orHIGH-SEAL Heavy-Duty live-loaded packing will notrequire this initial re-adjustment. See the Fisherinstruction manuals titled ENVIRO-SEAL PackingSystem for Sliding-Stem Valves or Heavy-DutyLive-Loaded Packing System (as appropriate) forpacking instructions. If you wish to convert yourpresent packing arrangement to ENVIRO-SEALpacking, refer to the retrofit kits listed in the PartsKits sub-section near the end of this manual.
MaintenanceValve parts are subject to normal wear and must beinspected and replaced as necessary. Inspectionand maintenance frequency depends on the severityof service conditions. This section includesinstructions for packing lubrication, packingmaintenance, trim maintenance, and ENVIRO-SEALbellows seal replacement. All maintenanceoperations may be performed with the valve in theline.
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Figure 3. PTFE V-Ring Packing Arrangements for Plain and Extension Bonnets
12A37837-AB1429-5*/IL
B1428-5*
9.5 mm (3/8‐INCH) STEM 12.7 mm (1/2‐INCH) STEM 19.1 mm (3/4‐INCH) STEM
FOR N04400/N05500PACKING BOX PART MATERIALS
WARNING
Avoid personal injury or propertydamage from sudden release ofprocess pressure or bursting of parts.Before performing any maintenanceoperations:
� Do not remove the actuator fromthe valve while the valve is stillpressurized.
� Always wear protective gloves,clothing, and eyewear when
performing any maintenanceoperations to avoid personal injury.
� Disconnect any operating linesproviding air pressure, electric power,or a control signal to the actuator. Besure the actuator cannot suddenlyopen or close the valve.
� Use bypass valves or completelyshut off the process to isolate thevalve from process pressure. Relieveprocess pressure from both sides ofthe valve. Drain the process mediafrom both sides of the valve.
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Figure 4. PTFE/Composition Packing Arrangements for Plain and Extension Bonnets
B0968-1*/IL
12A8188-A 12A7815-A 12A8173-A
9.5 mm (3/8‐INCH) STEM 12.7 mm (1/2‐INCH) STEM 19.1 mm (3/4‐INCH) STEM
� Vent the pneumatic actuatorloading pressure and relieve anyactuator spring precompression.
� Use lock-out procedures to besure that the above measures stay ineffect while you work on theequipment.
� The valve packing box maycontain process fluids that arepressurized, even when the valve hasbeen removed from the pipeline.Process fluids may spray out underpressure when removing the packinghardware or packing rings, or whenloosening the packing box pipe plug.
� Check with your process or safetyengineer for any additional measuresthat must be taken to protect againstprocess media.
Note
Whenever a gasket seal is disturbedby removing or shifting gasketedparts, a new gasket should be installedupon reassembly. This is necessary toensure a good gasket seal since theused gasket may not seal properly.
Note
If the valve has ENVIRO-SEAL orHIGH-SEAL live-loaded packinginstalled, refer to instruction manualsENVIRO-SEAL Packing System forSliding Stem Valves, D101642X012, orHIGH-SEAL Live Loaded PackingSystem, D101453X012, for packinginstructions. Figure 6 shows a typicalHIGH-SEAL packing system. Figures 7and 8 show typical ENVIRO-SEALsystems.
Packing LubricationNote
ENVIRO-SEAL or HIGH-SEAL packingdoes not require lubrication.
If an optional lubricator or lubricator/isolating valve(figure 2) is provided for PTFE/composition or otherpackings that require lubrication, it will be installed inan optional tapped hole in the bonnet. Use a goodquality silicon-base lubricant. Packing used inoxygen service or in processes with temperaturesover 260�C (500�F) should not be lubricated. Tooperate the lubricator, simply turn the cap screwclockwise to force the lubricant into the packing box.The lubricator/isolating valve must first be openedand then closed after lubrication is completed.
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Figure 5. Graphite Ribbon/Filament Packing Arrangements for Plain and Extension Bonnets
NOTE: 0.102 mm (0.004 INCH) THICK SACRIFICIAL ZINC WASHERS:USE ONLY ONE BELOW EACH GRAPHITE RIBBON RING.1
A5514-2/IL
A5513-2/IL
9.5 mm(3/8‐INCH)
STEM
12.7 mm(1/2‐INCH)
STEM
19.1 mm(3/4‐INCH)
STEM
19.1 mm(3/4‐INCH)
STEM
12.7 mm(1/2‐INCH)
STEM
9.5 mm(3/8‐INCH)
STEM
Packing MaintenanceThis section covers PTFE V-ring, PTFE/composition,and graphite/ribbon packing as used in plain andextension bonnets. Unless otherwise indicated, keynumbers refer to figure 3 for PTFE V-ring packing,figure 4 for PTFE/composition packing, and figure 5for graphite ribbon/filament packing.
For spring-loaded single PTFE V-ring packing, thespring (key 8, figure 3) maintains a sealing force onthe packing. If leakage is noted around the packingfollower (key 13, figure 3), check to be sure theshoulder on the packing follower is touching thebonnet. If the shoulder is not touching the bonnet,tighten the packing flange nuts (key 5, figure 11),until the shoulder is against the bonnet. If leakagecannot be stopped in this manner, proceed to theReplacing Packing procedure.
If there is unacceptable packing leakage with other
than spring-loaded packing, first try to limit theleakage and establish a stem seal by tightening thepacking flange nuts.
If the packing is relatively new and tight on the stem,and if tightening the packing flange nuts does notstop the leakage, the valve stem may be worn ornicked so that a seal cannot be made. The surfacefinish of a valve stem is critical for making a goodpacking seal. If the leakage comes from the outsidediameter of the packing, the leakage may be causedby nicks or scratches around the packing box wall. Ifperforming any of the following procedures, inspectthe valve stem and packing box wall for nicks andscratches.
An illustration of a HIGH-SEAL live-loaded packingsystem is shown in figure 6. Illustrations ofENVIRO-SEAL live-loaded packing systems areshown in figures 7, 8, and 9.
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Figure 6. Typical HIGH-SEAL Graphite ULFPacking System
39B4153-A
1. FIND NUMBER 219NOT REQUIRED WITH3/8-INCH STEM
Figure 7. Typical ENVIRO-SEAL Packing System withPTFE Packing
NOTE: FOR PTFE PACKING, TIGHTEN THE PACKING BOX HEX NUTS UNTIL THETOP OF THE FLANGE IS EVEN WITH THE TOP OF THE SLEEVE ON THE FOL-LOWER (SPRING PACK ASSEMBLY).
1
1
A6297/IL
Figure 8. Typical ENVIRO-SEAL Packing System withGraphite ULF Packing
PACKINGRING(KEY 209)
PACKINGRING(KEY 210)
PACKINGBOX RING(KEY 211)
STUD(KEY 200)
SPRINGPACK
ASSEMBLY(KEY 217)
HEX NUT(KEY 212)
PACKINGFLANGE(KEY 201)
GUIDEBUSHING(KEY 207)
PACKINGWASHERS(KEY 214)
GUIDEBUSHING(KEY 208)
39B4612/A
Figure 9. Typical ENVIRO-SEAL Packing System withDuplex Packing
Observe the warning at the start of theMaintenance section.
This section covers replacing packing used in plainand extension bonnets. PTFE V-ring packing isshown in figure 3, PTFE/composition packing isshown in figure 4, and graphite/ribbon packing isshown in figure 5.
1. Isolate the control valve from the line pressure,release pressure from both sides of the valve body,and drain the process media from both sides of thevalve. If using a power actuator, also shut off allpressure lines to the power actuator, and release allpressure from the actuator. Use lock-out proceduresto be sure that the above measures stay in effectwhile you work on the equipment.
2. Disconnect the operating lines from the actuatorand any leak-off piping from the bonnet. Disconnectthe stem connector and then remove the actuatorfrom the valve by unscrewing the yoke locknut (key 15, figure 11).
WARNING
To avoid personal injury or propertydamage caused by uncontrolledmovement of the bonnet, loosen thebonnet by following the instructions inthe next step. Do not remove a stuckbonnet by pulling on it with equipmentthat can stretch or store energy in anyother manner. The sudden release ofstored energy can cause uncontrolledmovement of the bonnet. If the seatring retainer sticks to the bonnet,proceed carefully with bonnet removal.
Note
The following step also providesadditional assurance that the valvebody fluid pressure has been relieved.
3. Hex nuts (key 16, figure 11) attach the bonnet tothe valve. Loosen these nuts or cap screwsapproximately 3 mm (1/8-inch). Then loosen thebody-to-bonnet gasketed joint by either rocking thebonnet or prying between the bonnet and valvebody. Work the prying tool around the bonnet untilthe bonnet loosens.
4. Loosen the packing flange nuts (key 5, figure 11)so that the packing is not tight on the valve stem.Remove any travel indicator parts and stem locknutsfrom the valve stem threads.
CAUTION
Avoid damaging the seating surfacecaused by the valve plug and stemassembly dropping from the bonnetafter being lifted part way out. Whenlifting the bonnet, temporarily install avalve stem locknut on the valve stem.This locknut will prevent the valve plugand stem assembly from dropping outof the bonnet.
5. Completely remove the cap screws (not shown)or hex nuts (key 16, figure 12) that bolt the bonnetand valve body together and carefully lift the bonnetoff.
6. Remove the locknut and separate the valve plugand stem from the bonnet. Set the parts on aprotective surface to prevent damage to gasket orseating surfaces.
7. Remove the bonnet gasket (key 10, figure 12)and cover the opening in the valve to protect thegasket surface and to prevent foreign material fromgetting into the valve body cavity.
8. Remove the packing flange nuts, packing flange,upper wiper, and packing follower (keys 5, 3, 12,
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and 13, figure 11). Carefully push out all theremaining packing parts from the valve side of thebonnet using a rounded rod or other tool that will notscratch the packing box wall. Clean the packing boxand the metal packing parts.
9. Inspect the valve stem threads and the packingbox surfaces for any sharp edges which might cutthe packing. Scratches or burrs could cause packingbox leakage or damage to the new packing. If thesurface condition cannot be improved by lightsanding, replace the damaged parts.
10. Remove the covering protecting the valve cavityand install a new bonnet gasket (key 10, figure 12),making sure the gasket seating surfaces are cleanand smooth. Then slide the bonnet over the stemand onto the stud bolts (key 15, figure 12), or ontothe valve cavity if cap screws (not shown) are usedinstead.
Note
Proper performance of the tighteningprocedures in step 11 compresses thespiral wound gasket (key 12, figure 12)enough to both load and seal the seatring gasket (key 13, figure 12). Thetightening procedures alsocompresses the outer edge of thebonnet gasket (key 10, figure 12)enough to seal the body-to-bonnetjoint.
The accepted bolting proceduresreferred to in step 11 include--but arenot limited to--ensuring that boltingthreads are clean, and evenlytightening the cap screws, or the nutsonto the studs, in a crisscross pattern.Because of the boltup characteristicsof spiral wound gaskets, tighteningone cap screw or nut may loosen anadjacent cap screw or nut. Repeat thecrisscross tightening pattern severaltimes until each cap screw or nut istight and the body-to-bonnet seal ismade. When the operating temperaturehas been reached, perform thistorquing procedure once again.
11. Install bolting, using accepted boltingprocedures during tightening so that thebody-to-bonnet joint can withstand test pressuresand application service conditions. The bolt torquesin table 2 may be used as guidelines unlessaccepted bolting procedures dictate otherwise.
12. Install new packing and the metal packing boxparts according to the appropriate arrangement infigure 3, 4, or 5. If split-ring packing is being added,alternate the position of the splits to avoid a leakpath. Place a smooth-edged pipe over the valvestem and gently tap each soft packing part into thepacking box, being sure that air is not trappedbetween adjacent soft parts.
Installation of graphite ribbon packing requiresspecial care to avoid trapping air between the rings.Start with only one ring at a time without forcing thetop of the packing ring below the bottom of theentrance chamfer of the packing box. Thus, when aring is added, the stack should not be pushed intothe cavity more than the thickness of the added ring.
13. Slide the packing follower, upper wiper, andpacking flange (keys 13, 12, and 3, figure 11) intoposition. Lubricate the packing flange studs (key 4,figure 11) and the faces of the packing flange nuts(key 5, figure 11). Install the packing flange nuts.
Note
The torque values discussed in step 14and shown in table 3 arerecommended guidelines only and arepresented as a starting point for thisprocedure. Tightening the packingflange nuts to a torque value thatexceeds the table guidelines, in orderto obtain a seal, may indicate otherproblems.
14. For spring-loaded PTFE V-ring packing,tighten the packing flange nuts until the shoulder onthe packing follower (key 13, figure 11) contacts thebonnet.
For graphite packing, tighten the packing flange nutsto the maximum recommended torque shown in table 3. Then, loosen the packing flange nuts, andretighten them to the recommended minimum torqueshown in table 3.
For other packing types, tighten the packing flangenuts alternately in small equal increments until oneof the nuts reaches the minimum recommendedtorque shown in table 3. Then, tighten the remainingflange nuts until the packing flange is level and at a90-degree angle to the valve stem.
For ENVIRO-SEAL or HIGH-SEAL live-loadedpacking, refer to the note at the beginning of theMaintenance section on page 5 of this manual.
15. Mount the actuator on the valve body andreconnect the actuator and valve stem according tothe procedure in the appropriate actuator instructionmanual.
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Table 3. Recommended Torque for Packing Flange Nuts(Not for Spring-Loaded Packing)
VALVESTEM
DIAMETER
PRES-SURE
RATING
GRAPHITE TYPEPACKING
PTFE TYPEPACKING
MinimumTorque
MaximumTorque
MinimumTorque
MaximumTorque
mm Inches N�m Lbf�in N�m Lbf�in N�m Lbf�in N�m Lbf�in
9.5 3/8
CL125,CL150
3 27 5 40 1 13 2 19
CL250CL300
4 36 6 53 2 17 3 26
CL600 6 49 8 73 3 23 4 35
12.7 1/2
CL125,CL150
5 44 8 66 2 21 4 31
CL250CL300
7 59 10 88 3 28 5 42
CL600 9 81 14 122 4 39 7 58
19.1 3/4
CL125,CL150
11 99 17 149 5 47 8 70
CL250CL300
15 133 23 199 7 64 11 95
CL600 21 182 31 274 10 87 15 131
Trim Maintenance
WARNING
Observe the warning at the start of theMaintenance section.
This procedure describes how the valve trim can becompletely disassembled. When inspection orrepairs are required, perform only those stepsnecessary to accomplish the task.
DisassemblyExcept where indicated, key numbers referenced inthe following steps are found in figure 12.
1. Remove the actuator and the bonnet according tosteps 1 through 6 of the Replacing Packingprocedure of the Maintenance section.
WARNING
Avoid personal injury or propertydamage from valve or packing leakage.
Any damage to the gasket sealingsurfaces could cause the valve to leak.
The surface finish of the valve stem(key 7) is critical for making a goodpacking seal. The inside surface of the
seat ring retainer is critical for smoothoperation of the valve plug.
The seating surfaces of the valve plugand seat ring (keys 2 and 9) are criticalfor proper shutoff.
Protect these parts accordingly whiledisassembling the trim. Gasketselection criteria is provided on page32 of this instruction manual.
2. Packing parts can be removed if desired.Replace these parts as described in the ReplacingPacking procedure.
Valves with Plain or Extension Bonnets
Perform the following steps to remove the valve trim.
1. Lift the valve plug and stem assembly [or the plugguide, disk retainer, and disk (keys 27, 28, and 29,figure 13) if used], out of the valve body and set it ona protective surface.
Note
With some valve plug sizes andconfigurations, the seat ring retainerand bushing assembly (keys 3 and 26,figures 12 and 13) will come out of thevalve body with the valve plug andstem assembly, and in other valve plugsizes and configurations, the valveplug or tip will slide through the seatring retainer and bushing assembly,leaving the retainer and bushingassembly in the valve body.
2. With the valve plug and stem assembly out of thevalve, either slide the seat ring retainer and bushingassembly (keys 3 and 26), and gaskets and shim(keys 10, 12, and 25) up over the valve plug andstem or lift the seat ring retainer and bushingassembly and associated gaskets and shim out ofthe valve body. If the valve plug is to be reused,protect the valve plug seating surface to preventscratches.
3. For valves with metal seats, drive out the pin(key 8) and unscrew the valve stem (key 7) from thevalve plug (key 2).
4. For valves with 0.25 and 0.375-inch ports andcomposition seats, refer to figure 13. Drive out thepin (key 8) and unscrew the valve stem (key 7) fromthe valve plug guide (key 27). Unscrew the diskretainer (key 28) from the valve plug guide. Removethe disk (key 29) from the valve plug tip (key 30).
For valves with 0.5 through 2-inch ports andcomposition seats, refer to figure 13. Drive out the
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pin (key 8) and unscrew the valve stem (key 7) fromthe valve plug guide (key 27). Drive out pin (key 31)and unscrew the tip (key 30) from the valve plugguide. Remove the disk (key 29) from the valve plugguide.
For valves with 3 and 4-inch ports andcomposition seats, refer to figure 13. Drive out thepin (key 8) and unscrew the valve stem from thevalve plug guide (key 27). Remove the cap screw(key 32) to remove the tip (key 30) from the valveplug guide. Remove the disk (key 29).
5. Remove the seat ring and seat ring gasket (keys 9 and 13).
6. Inspect parts for wear or damage that wouldprevent proper operation of the valve. Replace orrepair trim parts according to the following LappingMetal Seats or Assembly procedure as appropriate.
Valves with ENVIRO-SEAL Bellows Seal Bonnets
Perform the following steps to remove the valve trim.
1. Lift the stem/bellows assembly with valve plugattached [or the plug guide, disk retainer, and disk(keys 27, 28, and 29, figure 13) if used], seat ringretainer and gaskets out of the valve body and setthem on a protective surface.
Note
With some valve plug sizes andconfigurations, the seat ring retainerand bushing assembly (keys 3 and 26,figures 12 and 13) will come out of thevalve body with the stem/bellows, andin other valve plug sizes andconfigurations, the valve plug or tipwill slide through the seat ring retainerand bushing assembly, leaving theretainer and bushing assembly in thevalve body.
2. If the seat ring retainer and bushing assembly(keys 3 and 26) stayed in the valve, lift them outalong with gaskets and shim (keys 10, 12, and 25).
3. If the seat ring retainer and bushing assembly(keys 3 and 26) came out of the valve with thestem/bellows assembly, move the seat ring retainerand bushing assembly against the shoulder of thevalve plug (key 2) or valve plug guide (key 27, figure13) to provide access to the pin (key 36, figure 11).
VALVESTEM
BOLT TORQUE DRILL SIZE,INCH
DDIMENSION
mm Inch N�m Lbf�ft mm Inch
9.512.719.0
3/81/23/4
40-4781-115237-339
25-3560-85
175-250
3/321/83/16
161925
0.6250.75
1
Figure 10. Bolt Torque for Plug/Stem Connection andPlug/Adaptor Connection and Pin Replacement
CU8376�C35A5717�CA2415�2/IL
4. Place the stem/bellows assembly and valve plugor valve plug guide in a soft-jaw chuck or other typeof vise so that the jaws grip a portion of the valveplug or valve plug guide that is not a seating orguiding surface. Drive out the pin (key 36, figure 11).
5. Remove the stem/bellows assembly from thesoft-jaw chuck or vise. Place a wrench on the flatareas on the valve stem just below the threads forthe actuator/stem connection to keep the stem fromturning. Then, unscrew the adaptor (key 24, figure 11), which also includes the valve plug (key 2)or valve plug guide (key 27, figure 13), from thestem/bellows assembly (key 20, figure 11).
6. Remove the seat ring retainer and bushingassembly (keys 3 and 26) by sliding it over theadaptor. If the valve plug is to be reused, protect thevalve plug seating surface to prevent scratches.
7. For valves with metal seats, drive out the pin(key 8) and unscrew the adaptor (key 24, figure 11)from the valve plug (key 2).
8. For valves with 0.25 and 0.375-inch ports andcomposition seats, refer to figure 13. Drive outthe pin (key 8) and unscrew the adaptor (key 24,figure 11) from the valve plug guide (key 27).Unscrew the disk retainer (key 28) from the valveplug guide. Remove the disk (key 29) from the valveplug tip (key 30).
For valves with 0.5 through 2-inch ports andcomposition seats, refer to figure 13. Drive outthe pin (key 8) and unscrew the adaptor (key 24,figure 11) from the valve plug guide (key 27). Driveout the pin (key 31) and unscrew the tip (key 30)
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from the valve plug guide. Remove the disk (key 29)from the valve plug guide.
For valves with 3 and 4-inch ports andcomposition seats, refer to figure 13. Drive outthe pin (key 8) and unscrew the adaptor (key 24,figure 11) from the valve plug guide (key 27).Remove the cap screw (key 32) to remove the tip(key 30) from the valve plug guide. Remove the disk(key 29).
9. Remove the seat ring and seat ring gasket (keys 9 and 13).
10. Inspect parts for wear or damage that wouldprevent proper operation of the valve. Replace orrepair trim parts according to the following Assemblyprocedure as appropriate.
Lapping Metal Seats on Valves withPlain and Extension Bonnets
CAUTION
To avoid damaging the ENVIRO-SEALBellows Seal Bonnet assembly, do notattempt to lap the metal seatingsurfaces on valves with ENVIRO-SEALbellows seal bonnets. The design ofthe bonnet assembly prevents rotationof the stem and any forced lappingrotation will damage internalcomponents of the ENVIRO-SEALBellows Seal bonnet.
With metal-seat constructions, seating surfaces ofthe valve plug and seat ring (key 2, figure 12) can belapped for improved shutoff. (Deep nicks should bemachined out rather than ground out.) Use a goodquality lapping compound of a mixture of 280 to600-grit. Apply the compound to the bottom of thevalve plug.
Assemble the valve to the extent that the seat ringretainer is in place and the bonnet is bolted to thevalve body. A simple handle can be made from apiece of strap iron locked to the valve plug stem withnuts. Rotate the handle alternately in each directionto lap the seats. After lapping, remove the bonnetand clean the seat surfaces. Completely assembleas described in the assembly portion of the TrimMaintenance procedure and test the valve forshutoff. Repeat the lapping procedure if leakage isstill excessive.
AssemblyThis procedure assumes that all the trim andassociated gaskets were removed from the valvebody. If these parts were not all removed, start theassembly procedure at the appropriate step. Exceptwhere indicated, key numbers referenced in thefollowing steps are found in figure 12.
Valves with Plain or Extension Bonnets
Perform the following steps to assemble and installthe trim.
CAUTION
To avoid weakening the stem that maycause failure in service, never reuse anold stem with a new valve plug. Usingan old stem with a new plug requiresdrilling a new pin hole in thestem,which will weaken the stem.However, a used valve plug may bereused with a new stem.
1. For valves with metal seats, screw the valvestem (key 7) into the valve plug (key 2). Tighten tothe torque value given in figure 10. Refer to figure 10to select the proper drill size. Drill through the stemusing the hole in the valve plug as a guide. Removeany chips or burrs and drive in a new pin (key 8) tolock the assembly.
2. For valves with 0.25 and 0.375-inch ports andcomposition seats, refer to figure 13. Place thedisk (key 29) on the valve plug tip (key 30). Placethe disk retainer (key 28) over the disk, and thenthread the disk retainer onto the valve plug guide(key 27).
CAUTION
To avoid failure in service for valveswith 0.5 through 1-inch ports andcomposition seats, never reuse an oldvalve plug guide with a new valve plugtip. Using an old valve plug guide witha new plug tip requires drilling a newpin hole in the valve plug guide, whichwill weaken the guide. However, aused valve plug tip may be reused witha new valve plug guide.
For valves with 0.5 through 1-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Screwthe tip (key 30) onto the valve plug guide to clamp the
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disk in place. Using a 3/32-inch bit, drill through thevalve plug guide using the hole in the tip as a drillingguide. Remove any chips or burrs and drive in a newpin (key 31).
CAUTION
To avoid failure in service for valveswith 1.5 and 2-inch ports andcomposition seats, never reuse an oldvalve plug tip with a new valve plugguide. Using an old valve plug tip witha new valve plug guide requiresdrilling a new pin hole in the valve plugtip which will weaken the tip. However,a used valve plug guide may be reusedwith a new valve plug tip.
For valves with 1.5 and 2-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Screwthe tip (key 30) into the valve plug guide to clamp thedisk in place. Using a 3/32-inch bit, drill through thevalve plug tip using the hole in the valve plug guideas a drilling guide. Remove any chips or burrs anddrive in a new pin (key 31).
For valves with 3 and 4-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Placethe tip (key 30) against the valve plug guide to clampthe disk in place. Insert the cap screw (key 32)through the tip and thread it into valve plug guide tosecure the tip to the valve plug guide.
CAUTION
To avoid failure in service, never reusean old stem with a new valve plugguide. Using an old stem with a newvalve plug guide requires drilling anew pin hole in the stem, which willweaken the stem. However, a usedvalve plug guide may be reused with anew stem except for valves with 0.5through 1-inch ports and compositionseats (see to figure 13). For theseconstructions, a used valve plug guideshould only be used if the tip isreused.
3. For all valves with composition seats, screwthe valve stem (key 7) into the valve plug guide (key 27, figure 13). Tighten to the torque value givenin figure 10. Refer to figure 10 to select the proper
drill size. Drill through the stem, using the hole in thevalve plug guide as a drilling guide. Remove anychips or burrs and drive in a new pin (key 8) to lockthe assembly.
4. Install the seat ring gasket (key 13), and replacethe seat ring (key 9).
Note
With some valve plug sizes andconfigurations, the valve plug or tipwill slide through the seat ring retainerand bushing assembly (keys 3 and 26),and in other configurations it won’t.
5. If the valve plug (key 2) or valve plug tip (key 30,figure 13) will not slide through the seat ring retainerand bushing assembly (keys 3 and 26), proceed asfollows:
a. Place the seat ring retainer and bushingassembly (keys 3 and 26) over the stem of valveplug and stem assembly or over the stem of thevalve plug guide and stem assembly.
b. Install the seat ring retainer and bushingassembly, which also includes the valve plug andstem assembly or valve plug guide and stemassembly, on the top of the seat ring, ensuringthat the seat ring retainer slips onto the seat ringproperly. Any rotation orientation of the seat ringretainer with respect to the valve body isacceptable.
c. Place the spiral wound gasket, shim, andbonnet gasket (keys 12, 25, and 10) on theshoulder of the seat ring retainer.
6. If the valve plug (key 2) or the valve plug tip (key 30, figure 13) will slide through the seat ringretainer and bushing assembly (keys 3 and 26),proceed as follows:
a. Install the seat ring retainer and bushingassembly on the top of the seat ring, ensuringthat the seat ring retainer slips onto the seat ringproperly. Any rotation orientation of the seat ringretainer with respect to the valve body isacceptable.
b. Place the spiral wound gasket, shim, andbonnet gasket (keys 12, 25, and 10) on theshoulder of the seat ring retainer.
c. Slide the valve plug and stem assembly or thevalve plug guide and stem assembly into the seatring retainer and bushing assembly (keys 3 and 26).
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7. Mount the bonnet on the valve body andcomplete the assembly according to steps 10through 15 of the Replacing Packing procedure,omitting steps 12 and 13 if new packing is not beinginstalled, and being sure to observe the note prior tostep 11.
Valves with ENVIRO-SEAL Bellows Seal Bonnets
Perform the following steps to assemble and installthe trim.
1. For valves with 0.25 and 0.375-inch ports andcomposition seats, refer to figure 13. Place thedisk (key 29) on the valve plug tip (key 30). Placethe disk retainer (key 28) over the disk, and thenthread the disk retainer onto the valve plug guide(key 27).
CAUTION
To avoid failure in service of valveswith 0.5 through 1-inch ports andcomposition seats, never reuse an oldvalve plug guide with a new valve plugtip. Using an old valve plug guide witha new plug tip requires drilling a newpin hole in the valve plug guide, whichwill weaken the guide. However, aused valve plug tip may be reused witha new valve plug guide.
For valves with 0.5 through 1-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Screwthe tip (key 30) onto the valve plug guide to clamp thedisk in place. Using a 3/32-inch bit, drill through thevalve plug guide using the hole in the tip as a drillingguide. Remove any chips or burrs and drive in a newpin (key 31).
CAUTION
To avoid failure in service of valveswith 1.5 and 2-inch ports andcomposition seats, never reuse an oldvalve plug tip with a new valve plugguide. Using an old valve plug tip witha new valve plug guide requiresdrilling a new pin hole in the valve plugtip, which will weaken the tip.However, a used valve plug guide maybe reused with a new valve plug tip.
For valves with 1.5 and 2-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Screwthe tip (key 30) into the valve plug guide to clamp thedisk in place. Using a 3/32-inch bit, drill through thevalve plug tip using the hole in the valve plug guideas a drilling guide. Remove any chips or burrs anddrive in a new pin (key 31).
For valves with 3 and 4-inch ports andcomposition seats, refer to figure 13. Insert thedisk (key 29) in the valve plug guide (key 27). Placethe tip (key 30) against the valve plug guide to clampthe disk in place. Insert the cap screw (key 32)through the tip and thread it into valve plug guide tosecure the tip to the valve plug guide.
CAUTION
To avoid weakening the adaptor thatmay cause failure in service, neverreuse an old adaptor with a new valveplug or valve plug guide. Using an oldadaptor with a new valve plug or valveplug guide requires drilling a new pinhole in the adaptor, which will weakenthe adaptor. However, a used valveplug or valve plug guide may bereused with a new adaptor.
2. Thread the valve plug (key 2) or, the valve plugguide (key 27, figure 13) if the valve has compositionseats, onto the adaptor (key 24, figure 11). Tightento the torque valve given in figure 10.
Note
Valve plugs may not be pre-drilled.Follow the procedure in the followingstep.
3. If the valve plug is not pre-drilled, drill a holeaccording to figure 10. Otherwise, select the properdrill size (figure 10) and drill through the adaptorusing the hole in the valve plug as a guide. Removeany chips or burrs and drive in a new pin (key 8) tolock the assembly.
Note
With some valve plug sizes andconfigurations, the valve plug or tipwill slide through the seat ring retainerand bushing assembly, and in otherconfigurations it won’t.
4. If the valve plug (key 2) or valve plug tip (key 30,figure 13) will not slide through the seat ring retainer
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and bushing assembly (keys 3 and 26), proceed asfollows:
a. Slide the seat ring retainer and bushingassembly (keys 3 and 26) over the adaptor (key24, figure 11) so that the bushing rests on theshoulder of the valve plug or valve plug guide.
b. Place the spiral wound gasket, shim, andbonnet gasket (keys 12, 25, and 10) on theshoulder of the seat ring retainer.
c. Place a wrench on the flat areas of the stemjust below the threads for the actuator/stemconnection to keep the stem from turning.
d. Screw the adaptor (key 24, figure 11), whichalso includes the valve plug or valve plug guideand seat ring retainer and bushing assembly andgaskets, onto the stem/bellows assembly (key 20,figure 11). Tighten the adaptor until it is snug.Then, turn the adaptor until the valve stem holelines up with the next adaptor pin hole. Drive in anew pin (key 36) to lock the assembly.
e. Install the seat ring gasket (key 13), andreplace the seat ring (key 9).
f. Install the seat ring retainer and bushingassembly, which also contains the valveplug/adaptor assembly or valve plugguide/adaptor assembly, on the top of the seatring, ensuring that the seat ring retainer slips ontothe seat ring properly. Any rotation orientation ofthe seat ring retainer with respect to the valvebody is acceptable.
g. Place a new gasket (key 22, figure 11) overthe stem and bellows assembly.
5. If the valve plug (key 2) or the valve plug tip (key 30, figure 13) will slide through the seat ringretainer and bushing assembly (keys 3 and 26),proceed as follows:
a. Place a wrench on the flat areas of the stemjust below the threads for the actuator/stemconnection to keep the stem from turning.
b. Screw the adaptor (key 24, figure 11), whichalso includes the valve plug or valve plug guideonto the stem/bellows assembly (key 20, figure 11). Tighten the adaptor until it is snug.Then, turn the adaptor until the valve stem holelines up with the next adaptor pin hole. Drive in anew pin (key 36) to lock the assembly.
c. Install the seat ring gasket (key 13), andreplace the seat ring (key 9).
d. Install the seat ring retainer and bushingassembly on the top of the seat ring, ensuringthat the seat ring retainer slips onto the seat ringproperly. Any rotation orientation of the seat ringretainer with respect to the valve body isacceptable.
e. Place the spiral wound gasket, shim, andbonnet gasket (keys 12, 25, and 10) on theshoulder of the seat ring retainer.
f. Slide the valve plug/adaptor assembly or thevalve plug guide/adaptor assembly and theconnected stem and bellows assembly into theseat ring retainer and bushing assembly (keys 3and 26).
g. Place a new gasket (key 22, figure 11) overthe stem and bellows assembly.
6. Mount the bonnet on the valve body andcomplete the assembly according to steps 10through 15 of the Replacing Packing procedure,omitting steps 12 and 13 if new packing is not beinginstalled, and being sure to observe the note prior tostep 11.
ENVIRO-SEAL Bellows Seal andBonnet
Replacing a Plain or Extension Bonnetwith an ENVIRO-SEAL Bellows Seal(Stem/Bellows Assembly) and BonnetInstructions are provided for replacing a plain orextension bonnet with an ENVIRO-SEAL bellowsseal bonnet when the existing valve has a metalseat. If the valve has a composition seat, refer tofigure 13 and to composition seat information in theValves with ENVIRO-SEAL Bellows Seal Bonnetprocedure of the Trim Maintenance section.
1. Remove the actuator and bonnet according tosteps 1 through 6 of the Replacing Packingprocedure of the Maintenance section.
Note
With some valve plug sizes andconfigurations, the valve plug will slidethrough the seat ring retainer andbushing assembly, and in otherconfigurations it won’t. If the valve
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plug will not slide through the seatring retainer and bushing assembly,then the valve plug and stem assemblyand the seat ring retainer and bushingassembly must be removed together.
2. Using care, remove the valve plug and stemassembly, and, if necessary, the seat ring retainerand bushing assembly from the valve body.
3. Remove and discard the existing bonnet gasket(key 10, figure 12). Cover the valve body opening toprotect sealing surfaces and to prevent foreignmaterial from entering the valve body cavity.
Note
The ENVIRO-SEAL stem/bellowsassembly for easy-e valves is availableonly with a threaded and drilledplug/adaptor connection. The existingvalve plug can be reused with the newstem/bellows assembly or a new plugcan be installed.
4. Inspect the existing valve plug. If the plug is ingood condition, it can be reused with the newENVIRO-SEAL stem/bellows assembly. To removethe existing valve plug from the stem, first, place theexisting plug stem assembly in a soft-jaw chuck orother type of vise so that the jaws grip a portion ofthe valve plug that is not a seating surface. Drive outor drill out the pin (key 8, figure 12).
5. Place a wrench on the flat areas on the existingvalve stem just below the threads for theactuator/stem connection. Then, unscrew the stemfrom the valve plug (key 2, figure 12).
CAUTION
When installing a valve plug on theENVIRO-SEAL stem/bellows assembly,the valve stem must not be rotated.Damage to the bellows may result.
Do not grip the bellows shroud orother parts of the stem/bellowsassembly. Grip only the flat areas onthe stem where it extends out of thetop of the bellows shroud.
Note
The ENVIRO-SEAL stem/bellowsassembly has a one-piece stem.
Table 4. Recommended Torque for ENVIRO-SEAL Bellows Seal Packing Flange Nuts
VALVESIZE,NPS
VALVE STEMDIAMETERTHROUGHPACKING
MINIMUM TORQUE MAXIMUM TORQUE
N�m Lbf�in N�m Lbf�in
1/2 - 2 1/2 2 22 4 33
3 -4 1 5 44 8 67
6. To attach the valve plug to the stem of the newENVIRO-SEAL stem/bellows assembly, it isnecessary to first attach the valve plug to theadaptor (key 24, figure 11). Locate the adaptor.Notice that a hole has not been drilled in the adaptorthreads where the valve plug screws onto theadaptor.
Secure the valve plug in a soft-jaw chuck or othertype of vise. Do not grip the plug on any seatingsurface. Position the plug in the chuck or vise foreasy threading of the adaptor. Thread the adaptorinto the valve plug and tighten to the torque valuegiven in figure 10.
Note
Valve plugs may not be pre-drilled.Follow the procedure in the followingstep.
7. If the valve plug is not pre-drilled, drill a holeaccording to figure 10. Otherwise, select the propersize of drill bit (figure 10) and drill through theadaptor using the hole in the valve plug as a guide.Remove any metal chips or burrs and drive in a newpin (key 8, figure 12) to lock the valve plug/adaptorassembly together.
Note
For some valve plug configurations,you must place the valve plug/adaptorassembly inside the seat ring retainerand bushing assembly beforeattaching the adaptor to the stemextending from the bottom of theENVIRO-SEAL stem/bellows assembly.If this task is necessary, then place thespiral wound gasket, shim, and bonnetgasket (keys 12, 25, and 10, figure 12)on the shoulder of the seat ringretainer. Check the existing seat ringretainer and bushing assembly forclearances. If necessary, useappropriate procedures to support theseat ring retainer while screwing thevalve plug/adaptor assembly onto the
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valve stem extending from theENVIRO-SEAL stem/bellows assembly.
8. Place a wrench on the flat areas of the valvestem just below the threads for the actuator/stemconnection to keep the stem from turning.
9. Screw the adaptor (key 24, figure 11), which alsoincludes the valve plug or valve plug guide and mayinclude the seat ring retainer and bushing assemblyand gaskets, onto the valve stem. Tighten theadaptor until it is finger-tight. Then, tighten theadaptor with a wrench until the valve stem hole linesup with the next adaptor pin hole. Drive in a new pin(key 36, figure 11) to lock the assembly. Make certainthe spiral wound gasket, shim, and bonnet gasket(keys 12, 25, and 10, figure 12) are located on theshoulder of the seat ring retainer.
10. Inspect the seat ring. Replace, if necessary.
11. Install the new stem/bellows assembly withvalve plug/adaptor by placing it into the valve body.
12. Place a new gasket (key 22, figure 11) over thestem/bellows assembly. Place the newENVIRO-SEAL bonnet over the stem/bellowsassembly.
13. Properly lubricate the bonnet stud bolts. Installand tighten the bonnet hex nuts to the proper torque.
14. Install new packing and the metal packing boxparts according to the appropriate arrangement infigure 14 or 15.
15. Install the packing flange. Properly lubricate thepacking flange stud bolts and the faces of thepacking flange nuts.
For graphite packing, tighten the packing flange nutsto the maximum recommended torque shown in table 4. Then, loosen the packing flange nuts, andretighten them to the recommended minimum torqueshown in table 4.
For other packing types, tighten the packing flangenuts alternately in small equal increments until oneof the nuts reaches the minimum recommendedtorque shown in table 4. Then, tighten the remainingflange nuts until the packing flange is level and at a90-degree angle to the valve stem.
16. Install travel indicator parts, stem locknuts, andmount the actuator on the valve body according tothe procedure in the appropriate actuator instructionmanual.
Replacing an Installed ENVIRO-SEALBellows Seal (Stem/Bellows Assembly)Instructions are provided for replacing anENVIRO-SEAL bellows seal (stem/bellowsassembly) when the existing valve has a metal seat.If the valve has a composition seat, refer to figure 13and to composition seat information in the Valveswith ENVIRO-SEAL Bellows Seal Bonnet procedureof the Trim Maintenance section.
1. Remove the actuator and bonnet according tosteps 1 through 5 of the Replacing Packingprocedure of the Maintenance section.
Note
With some valve plug sizes andconfigurations, the valve plug will slidethrough the seat ring retainer andbushing assembly, and in otherconfigurations it won’t. If the valve plugwill not slide through the seat ringretainer and bushing assembly, thenthe valve plug and stem assembly andthe seat ring retainer and bushingassembly must be removed together.
2. Using care, remove the valve plug and stemassembly, and, if necessary, the seat ring retainerand bushing assembly from the valve body. Removeand discard the existing bonnet gasket (key 10,figure 12) and gasket (key 22, figure 11). Cover thevalve body opening to protect sealing surfaces andto prevent foreign material from entering the valvebody cavity.
CAUTION
The ENVIRO-SEAL stem/bellowsassembly for easy-e valves is availableonly with a threaded and pinnedadaptor/stem connection. The existingvalve plug can be reused with the newstem/bellows assembly or a new plugcan be installed. If the existing valveplug is reused, and the adaptor is ingood condition, it may be reused also.However, to avoid weakening theadaptor that may cause failure inservice, never reuse an old adaptorwith a new valve plug. Using an oldadaptor with a new plug requiresdrilling a new pin hole in the adaptor,which will weaken the adaptor.However, a used valve plug may bereused with a new adaptor.
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3. Inspect the existing valve plug and adaptor. If theyare in good condition, they can be reused with the newstem/bellows assembly, and they do not need to beseparated.
CAUTION
When removing/installing a valve plugon the ENVIRO-SEAL stem/bellowsassembly, the valve stem must not berotated. Damage to the bellows mayresult.
Do not grip the bellows shroud orother parts of the stem/bellowsassembly. Grip only the flat areas onthe stem where it extends out of thetop of the bellows shroud.
Note
The ENVIRO-SEAL stem/bellowsassembly has a one-piece stem.
4. If the existing valve plug and adaptor are not ingood condition and must be replaced, first, place theexisting stem/bellows assembly and valve plug andadaptor assembly in a soft-jaw chuck or other type ofvise so that the jaws grip a portion of the valve plugthat is not a seating surface. Drive out or drill out pin(key 8, figure 12). Drive out pin (key 36, figure 11).
5. Use a wrench on the flat areas on the valve stemjust below the threads for the actuator/stemconnection in a soft-jaw chuck or vice to keep thestem from turning. Then, unscrew the valve plugfrom the adaptor and the adaptor from thestem/bellows assembly.
6. To attach either the existing valve plug or a newone to the stem of the new ENVIRO-SEALstem/bellows assembly, it is necessary to first attachthe valve plug to the adaptor (key 24, figure 11), if thevalve plug was removed from the adaptor. Locate theadaptor. Notice that a hole has not been drilled in thenew adaptor threads where the valve plug screwsonto the adaptor.
If installing either a new valve plug and/or a newadaptor, secure the valve plug in a soft-jaw chuck orother type of vise. Do not grip the plug on any seatingsurface. Position the plug in the chuck or vise foreasy threading of the adaptor. Thread the adaptorinto the valve plug and tighten to the torque valuesgiven in figure 10.
7. Complete the installation by following steps 7through 16 of the Replacing a Plain or ExtensionBonnet with an ENVIRO-SEAL Bellows Seal andBonnet procedure provided in the previous section.
Purging the ENVIRO-SEAL Bellows SealBonnetThe ENVIRO-SEAL bellows seal bonnet has beendesigned so that it can be purged or leak tested.Refer to figure 11 for an illustration of anENVIRO-SEAL bellows seal bonnet, and perform thefollowing steps for purging or leak testing.
1. Remove the two diametrically opposed pipe plugs(key 16).
2. Connect a purging fluid to one of the pipe plugconnections.
3. Install appropriate piping or tubing in the otherpipe plug connection to pipe away the purging fluidor to make a connection to an analyzer for leaktesting.
4. When purging or leak testing has beencompleted, remove the piping or tubing and reinstallthe pipe plugs (key 16).
Parts OrderingEach valve is assigned a serial number which canbe found on the valve body. This same number alsoappears on the actuator nameplate when the valveis shipped from the factory as part of a control valveassembly. Refer to the serial number whencontacting your Emerson Process Managementsales office for technical assistance. When orderingreplacement parts, refer to the serial number and tothe 11-character part number for each part requiredfrom the following parts list.
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Parts KitsGasket parts kits are in key 10 table.
Packing Kits (non-live-loaded)
Stem Diameter, mm (Inches)Yoke Boss Diameter, mm (Inches)
1. These parts kits contain one extra lower wiper (key 30). Discard this extra part upon assembly.2. This parts kit contains one extra packing ring (key 7). Discard this extra part upon assembly.
Packing Kits (ENVIRO-SEAL) Repair
Stem Diameter, mm (Inches)Yoke Boss Diameter, mm (Inches)
Use only genuine Fisher replacementparts. Components that are notsupplied by Emerson ProcessManagement should not, under anycircumstances, be used in any Fishervalve, because they may void yourwarranty, might adversely affect theperformance of the valve, and couldcause personal injury and propertydamage.
Note
Neither Emerson, Emerson ProcessManagement, nor any of their affiliatedentities assumes responsibility for theselection, use, or maintenance of anyproduct. Responsibility for theselection, use, and maintenance of anyproduct remains with the purchaserand end-user.
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Parts ListBonnet
Note
Part numbers are shown for recommended sparesonly. For part numbers not shown, contact yourEmerson Process Management sales office.
Key Description Part Number1 Bonnet/ENVIRO-SEAL bellows seal bonnet
If you need a bonnet or an ENVIRO-SEAL bellows sealbonnet as a replacement part, order by valve size and stemdiameter, serial number, and desired material.
12.7 mm (1/2-inch) stemPTFE/comp (10 req’d) 1E319001042
19.1 mm (3/4-inch) stemPTFE/comp (8 req’d) 1E319101042
7* Packing Ring, graphite ribbon ring (2 req’dfor single packing, 3 req’d for doublepacking)9.5 mm (3/8-inch) stem 1V3160X002212.7 mm (1/2-inch) stem 1V3802X002219.1 mm (3/4-inch) stem 1V2396X0022
7* Packing Ring, graphite filament ring9.5 mm (3/8-inch) stem (2 req’d for singlepacking, 4 req’d for double packing) 1F3370X032212.7 mm (1/2-inch) stem (3 req’d forsingle packing, 5 req’d for doublepacking) 1E3190X022219.1 mm (3/4-inch) stem (2 req’d forsingle packing, 4 req’d for doublepacking) 1E3191X0282
Key Description Part Number7* ENVIRO-SEAL Bellows Seal Packing Ring
for low chloride graphite ribbon/filamentpacking arrangementRibbon packing ring for 9.5 mm (3/8 inch)and size 2 with 12.7 mm (1/2 inch) stem(4 req’d) 18A0908X012
Filament packing ring for 9.5 mm(3/8 inch) and size 2 with 12.7 mm(1/2 inch) stem (4 req’d) 1P3905X0172
Ribbon packing ring for size 3 and 4with 12.7 mm (1/2 inch) stem (4 req’d) 18A0918X012
Filament packing ring for size 3 and 4with 12.7 mm (1/2 inch) stem (4 req’d) 14A0915X042
8 Spring, S31600 (for single PTFE packing only)8 Spacer, N04400 (for single PTFE packing only)8 Lantern Ring (for double PTFE packing)8 ENVIRO-SEAL Bellows Seal Spring8 ENVIRO-SEAL Bellows Seal Spacer
10 Special Washer, S31600 (for single PTFE packing)11* Packing Box Ring
Single PTFE packing9.5 mm (3/8-inch) stemS31600 (std for S31600 and S41600 trims) 1J873135072N05500 (std for N05500 trim) 1J873146222
12.7 mm (1/2-inch) stemS31600 (std for S31600 and S41600 trims) 1J873235072N05500 (std for N05500 trim) 1J873246222
19.1 mm (3/4-inch) stemS31600 (std for S31600 and S41600 trims) 1J873335072N05500 (std for N05500 trim) 1J873346222
Double PTFE packing9.5 mm (3/8-inch) stemS31600 (std for S31600 and S41600 trims) 1J873135072Glass-filled PTFE (std for N05500 trim) 17A6872X012
12.7 mm (1/2-inch) stemS31600 (std for S31600 and S41600 trims) 1J873235072Glass-filled PTFE (std for N05500 trim) 17A6873X012
Double PTFE packing (cont’d)19.1 mm (3/4-inch) stemS31600 (std for S31600 and S41600 trims) 1J873335072Glass-filled PTFE (std for N05500 trim) 17A6874X012
PTFE/composition packing9.5 mm (3/8-inch) stemS31600 (std for S31600 and S41600 trims) 1J873135072Glass-filled PTFE (std for N05500 trim) 17A6872X012
12.7 mm (1/2-inch) stemS31600 (std for S31600 and S41600 trims) 1J873235072N05500 (std for N05500 trim) 1J873246222
19.1 mm (3/4-inch) stemS31600 (std for S31600 and S41600 trims) 1J873335072Glass-filled PTFE (std for N05500 trim) 17A6874X012
12* Upper Wiper, felt9.5 mm (3/8-inch) stem 1J87260633212.7 mm (1/2-inch) stem 1J87270633219.1 mm (3/4-inch) stem 1J872806332
12* ENVIRO-SEAL Bellows Seal Upper WiperFor 9.5 mm (3/8 inch) and size 2 with 12.7 mm(1/2 inch) stem 18A0868X012
For size 3 & 4 with 12.7 mm (1/2 inch) stem 18A0870X01213 Packing Follower
*Recommended spare parts
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Figure 11. Typical Bonnets
CU3911�D/IL 42B3947�A/IL
AU3910�A/IL
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Key Description Part Number13* ENVIRO-SEAL Bellows Seal Bushing
For 9.5 mm (3/8 inch) stem (1 req’d),for size 2 with 12.7 mm (1/2 inch) stem, (2 req’d)S31600/PTFE 18A0820X012R30006 18A0819X012S31600/Cr Ct 11B1155X012
For size 3 and 4 with 12.7 mm (1/2 inch)stem (1 req’d)S31600/PTFE 18A0824X012R30006 18A0823X012S31600/Cr Ct 11B1157X012
13* ENVIRO-SEAL Bellows Seal Bushing/LinerFor 9.5 mm (3/8 inch) stem (1 req’d),for size 2 with 12.7 mm (1/2 inch) stem (2 req’d)N10276 bushing, PTFE/glass liner 12B2713X012N10276 bushing, PTFE/carbon liner 12B2713X042
For size 3 and 4 with 12.7 mm (1/2 inch)stem (1 req’d)N10276 bushing, PTFE/glass liner 12B2715X012N10276 bushing, PTFE/carbon liner 12B2715X042
14 Pipe Plug (not shown)14 Lubricator14 Lubricator/Isolating Valve15 Yoke Locknut15 ENVIRO-SEAL Bellows Seal Yoke Locknut16 Pipe Plug (not shown)16 ENVIRO-SEAL Bellows Seal Pipe Plug (2 req’d)20* ENVIRO-SEAL Bellows Seal Stem/Bellows
Assembly1 Ply BellowsS31603 trim mat’l, N06625 bellows mat’lSize 1 w/ 9.5 mm (3/8 inch) stem 32B4224X012Size 1-1/2 w/ 9.5 mm (0.375 inch) stem 32B4225X012Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X012Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X012Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X012
N06022 trim mat’l, N06022 bellows mat’lSize 1 w/ 9.5 mm (3/8 inch) stem 32B4224X022Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X022Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X022Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X022Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X022
2 Ply BellowsS31603 trim mat’l, N06625 bellows mat’lSize 1 w/ 9.5 mm (3/8 inch) stem 32B4224X032Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X032Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X032Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X032Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X032
N06022 trim mat’l, N06022 bellows mat’lSize 1 w/ 9.5 mm (3/8 inch) stem 32B4224X042Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X042Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X042Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X042Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X042
22* ENVIRO-SEAL Bellows Seal Bonnet Gasket(graphite/S31600)Size 1/2 through 1-1/4 12B6316X022Size 1-1/2 12B6317X022Size 2 12B6318X022Size 3 12B6319X022Size 4 12B6320X022
Key Description Part Number24 ENVIRO-SEAL Bellows Seal Adaptor27 Pipe Nipple, for lub/isolating valve,steel28 ENVIRO-SEAL Bellows Seal Nameplate, Warning29 ENVIRO-SEAL Bellows Seal Drive Screw (2 req’d)34 Lubricant, anti-seize (not furnished with valve)36* ENVIRO-SEAL Bellows Seal Pin 12B3951X01237 ENVIRO-SEAL Bellows Seal Warning Tag38 ENVIRO-SEAL Bellows Seal Tie39 ENVIRO-SEAL Bellows Seal Thrust Ring
For ENVIRO-SEAL and HIGH-SEALpackingCarbon-graphitefor graphite packing9.5 mm (3/8-inch) stem 12B5780X01212.7 mm (1/2-inch) stem 12B5782X01219.1 mm (3/4-inch) stem 12B5784X012
208* Guide Bushing, no colorFor ENVIRO-SEAL and HIGH-SEAL packingCarbon-Graphite for graphite packing9.5 mm (3/8-inch) stem 12B5781X01212.7 mm (1/2-inch) stem 12B5783X01219.1 mm (3/4-inch) stem 12B5785X012
209* Packing Ring(1) (3 req’d)For ENVIRO-SEAL and HIGH-SEALpackingGraphite Compositefor graphite packing9.5 mm (3/8-inch) stem 12B5798X01212.7 mm (1/2-inch) stem 12B5799X01219.1 mm (3/4-inch) stem 12B5800X012
210* Packing Ring (2 req’d)For ENVIRO-SEAL and HIGH-SEALpackingGraphite Ribbonfor graphite packing9.5 mm (3/8-inch) stem 1V3160X002212.7 mm (1/2-inch) stem 1V3802X002219.1 mm (3/4-inch) stem 1V2396X0022
211* Packing Box RingFor ENVIRO-SEAL packingS31600For PTFE Packing9.5 mm (3/8-inch) stem 1J87313507212.7 mm (1/2-inch) stem 1J87323507219.1 mm (3/4-inch) stem 1J873335072
For ENVIRO-SEAL and HIGH-SEALpackingS31600For Graphite packing and Duplex packing9.5 mm (3/8-inch) stem 12B5774X01212.7 mm (1/2-inch) stem 12B5775X01219.1 mm (3/4-inch) stem 12B5776X012
212 Hex Nut (2 req’d)
*Recommended spare parts1. Part number is stamped onpart.
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Key Description Part Number213 Lubricant, anti-seize214* Anti-Extrusion washer (4 req’d)
For ENVIRO-SEAL packingPTFE filled (off-white)For PTFE packing9.5 mm (3/8-inch) stem 12B6336X02212.7 mm (1/2-inch) stem 12B6335X02219.1 mm (3/4-inch) stem 12B6660X012
214* Packing Washer (5 req’d)For ENVIRO-SEAL packingPTFEFor Graphite packing and Duplex packing9.5 mm (3/8-inch) stem 12B6936X01212.7 mm (1/2-inch) stem 12B6937X01219.1 mm (3/4-inch) stem 12B6938X012
215* Packing Set (2 req’d)For ENVIRO-SEAL packingPTFE-carbon/PTFE9.5 mm (3/8-inch) stem 12B6663X01212.7 mm (1/2-inch) stem 12B6667X01219.1 mm (3/4-inch) stem 12B6671X012
216 Lantern Ring217 Spring Pack Assembly218* Lower wiper
For ENVIRO-SEAL packingPTFEFor PTFE packing9.5 mm (3/8-inch) stem 1J87210699212.7 mm (1/2-inch) stem 1J87220699219.1 mm (3/4-inch) stem 1J872306992
Valve Body1 Valve Body
If you need a valve body as a replacement part, order byvalve size, serial number, and desired material.
2* Valve Plug See following table3* Seat Ring Retainer (part numbers for the seat ring
retainer/bushing assy are provided in a following table)NPS 1/2, 3/4, & 1 valveCB7Cu-1 (17-4PH SST) 25A6683X012CF8M (316 SST) 25A6683X022M35-1 25A6683X052
Key Description Part Number7* Stem See following table8* Pin See following table9* Seat Ring See following table
10* Bonnet Gasket See following table12* Spiral Wound Gasket See following table13* Seat Ring Gasket See following table15 Cap Screw or Stud Bolt16 Nut17 Pipe Plug, for use in valve bodies with drain tapping only18 Flow Arrow, SST19 Drive Screw, SST (4 req’d)25* Shim See following table26* Bushing See following table
(See additional table for part numbers ofassemblies that include both the seat ringretainer and the bushing)
27* Valve Plug Guide (for composition seatsonly) See following table
28* Disk Retainer, (composition seats only)6.4 mm (0.25-inch) port diameterS31600 16A3441X012N05500 16A3441X042S41600 16A3441X052
9.5 mm (0.375-inch) port diameterS31600 16A5706X012N05500 16A5706X042S41600 16A5706X052
29* Disk, PTFE (composition seats only)6.4 mm (0.25-inch) port diameter 13A1226X0629.5 mm (0.375-inch) port diameter 13A5125X04212.7 mm (0.5-inch) port diameter 1P69680624219.1 mm (0.75-inch) port diameter 1P69610624225.4 mm (1-inch) port diameter 1P69690624238.1 mm (1.5 inch) port diameter 1U27960624250.8 mm (2-inch) port diameter 1U27990624276.2 mm (3-inch) port diameter 1F5653X0012101.6 mm (4-inch) port diameter 16A3462X012
30* Tip (composition seats only) See following table31* Pin (composition seats only)
12.7 mm (0.5-inch) port diameterS31600 and S41600 1B599038992N05500 1B5990X0032
19.1 mm (0.75-inch) port diameterS31600 and S41600 1P730438992N05500 1P7304X0032
25.4 mm (1-inch) and 38.1 mm (1.5 inch)port diameterS31600 and S41600 1B599335072N05500 1B5993X00B2
50.8 mm (2-inch) port diameterS31600 and S41600 1B599538992N05500 1B599540032
32 Cap Screw (composition seat only)33 Nameplate, stainless steel34 Wire, lead
*Recommended spare parts
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Figure 12. Fisher EZ Valve
E0994
16A1943�A
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Figure 13. Composition Seats for Fisher EZ Valve
46A1842�B
6.4 mm (0.25‐INCH) 6.4 AND 9.5 mm (0.25‐INCH AND 0.375‐INCH)
12.7 mm THROUGH 25.4 mm(0.5‐INCH THROUGH 1‐INCH)
38.1 mm AND 50.8 mm(1.5 INCH AND 2‐INCH)
76.2 mm AND 101.6 mm(3‐INCH AND 4‐INCH PORT DIAMETER)
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Figure 14. PTFE Packing Arrangements for ENVIRO-SEAL Bellows Seal Bonnets
A5886�1/IL
A5885/IL
9.5 mm(3/8‐INCH)
12.7 mm (1/2‐INCH) 9.5 mm(3/8‐INCH)
12.7 mm(1/2‐INCH) STEM,
9.5 mm(3/8‐INCH)
12.7 mm(1/2‐INCH)
12.7 mm(1/2‐INCH)
NPS 2NPS 2
NPS 2 NPS 3 ANDNPS 4
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Figure 15. Double Graphite Ribbon/Filament Arrangements for ENVIRO-SEAL Bellows Seal BonnetsA5887�1/IL
1. Valve stem connection.2. N05500 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
*Recommended spare parts
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Key 2*, 7*, and 8* Valve Plug/Stem Assembly for Plain Bonnet
Equal Percentage 101.6 4 12.7 1/2 15A6488X112 15A6650X022 15A6651X022 - - - 15A6488X0721. Valve stem connection.2. N05500 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
Key 3*, 26* Seat Ring Retainer and Bushing Assembly(1) (2)
VALVESIZE,NPS
SEAT RING RETAINER/BUSHING MATERIAL
CB7Cu-1/S17400(17-4PH SST)
CF8M/R30006(316 SST/Alloy 6)
M35-1/N05500(3)
1/2, 3/4, & 1 25A6683X062 25A6683X072 25A6683X172
1-1/2 25A6685X072 25A6685X082 25A6685X142
2Full 25A6687X062 25A6687X112 25A6687X192
Restricted 25A6687X092 25A6687X132 25A6687X182
3 25A6689X152 25A6689X132 25A6689X142
4Full 35A6691X062 35A6691X082 35A6691X092
Restricted 35A6691X102 17A4161X082 35A6691X1121. Seat ring retainer (only) part numbers are listed in the parts list on page 23.2. Micro-Flow and Micro-Flute constructions do not use bushings.3. M35-1/N05500 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
*Recommended spare parts
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Key 7* Stem (for use with Group 1 Actuators)
VALVE SIZE,NPS
STEM DIAMETER STEM MATERIAL
mm Inch S31600 N05500 S20910 (NACE)
1/2, 3/4, 1, 1-1/2
9.5 3/8 1U388835162 10A8823XA22 1U3888X0222
12.7 1/2 1U388935162 1U3889X0012 1U3889X0042
12.7 x 9.5 1/2 x 3/8 1U530935162 1U530946222 1U5309X0082
2
12.7 1/2 1U388935162 1U3889X0012 1U3889X0042
12.7 X 9.5 1/2 X 3/8 1U530935162 1U530946222 1U5309X0082
1. Valve stem connection.2. N04400 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
101.6 4 15A6507X012 15A6658X012 - - - 15A6507X042 15A6507X0521. N05500 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
Key 9* Seat Ring (vaned) for Metal Seats(1)
VALVESIZE,NPS
PORT DIA CF8M(316 SST)
CF8M w/CoCr-A (ALLOY 6)
SEAT
CA15(410 SST)(2)mm Inch
1/2,3/4,and
1
19.1 0.75 37B8773X012 38B0600X012 37B8773X022
25.4 1 37B8771X012 38B0601X012 37B8771X022
1-1/225.4 1 37B9001X012 38B0602X012 37B9001X022
38.1 1.5 37B8999X012 38B0603X012 37B8999X022
225.4 1 37B8765X012 38B0604X012 37B8765X022
50.8 2 37B8763X012 38B0605X012 37B8763X022
350.8 2 37B9009X012 38B0606X012 37B9009X022
76.2 3 37B9007X012 38B0607X012 37B9007X022
450.8 2 37B8781X012 38B0608X012 37B8781X022
101.6 4 37B8779X012 38B0609X012 37B8779X0221. Emerson Process Management recommends that the Performance+ vaned seat ring be used for non-viscous, flow-up, liquid applications.2. Vaned seat ring material is CA15 (410 SST) which is cast equivalent of S41600 (416 SST).
Key 9* Seat Ring (non-vaned) for Composition Seats
VALVESIZE,NPS
PORTDIAMETER S31600
(316 SST)N05500(1) S41600
(416 SST)mm Inch
1/2, 3/4, & 1 6.49.5
0.250.375
13A5872X01213A5873X012
13A5872X06213A5873X062
13A5872X02213A5873X032
1-1/2 6.49.5
0.250.375
16A3467X01217A6078X012
16A3467X04217A6078X042
16A3467X05217A6078X052
2 6.49.5
0.250.375
16A3468X01217A6077X012
16A3468X04217A6077X042
16A3468X05217A6077X052
1. N05500 materials in hydrofluoric acid service require special options. Contact your Emerson Process Management sales office for assistance.
25 16A1941X012 16A1941X0221. See table below for description of gasket sets.2. Consult your Emerson Process Management sales office for gasket set part number.
Gasket Selection Criteria
Gasket Set Seat Ring Gasket Bonnet Gasket SpiralWound Gasket
Shim TemperatureCapabilities
2(1) 316 SST/graphiteflat sheet
316 SST/graphiteflat sheet
N06600 /graphite
S31600 �198 to 593�C(�325 to 1100�F)
3 PTFE-coated N04400 PTFE-coated N04400 N04400/PTFE N04400 �73 to 149�C(�100 to 300�F)
472 & 473585C & 585CR603 & 1B644 & 645655657 & 667--76 mm (3-inch) max travel1008--except 90 mm (3-9/16 inch) yoke bosswith 51 mm (2-inch) travel
*Recommended spare parts
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Emerson Process Management Marshalltown, Iowa 50158 USASorocaba, 18087 BrazilChatham, Kent ME4 4QZ UKDubai, United Arab EmiratesSingapore 128461 Singaporewww.Fisher.com
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, theyare not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use orapplicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve thedesigns or specifications of such products at any time without notice. Neither Emerson, Emerson Process Management, nor any of their affiliatedentities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance ofany product remains solely with the purchaser and end-user.
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Fisher, easy-e, and ENVIRO-SEAL are marks owned by one of the companies in the Emerson Process Management business division of EmersonElectric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. KALREZis a mark owned by E.I. duPont de Nemours Co. All other marks are the property of their respective owners.