fisher valves

7/29/2019 fisher valves

1/12

Fisher Technology Development


2/12

THE CONTROL VALVE YOU CHOOSE MATTERSWHEN YOU HAVE TO ACHIEVE MORE EFFICIENT,PRODUCTIVE, AND SAFER PLANT OPERATION.

The process industry is changing. Facilities are bigger and demand larger, highly engineered control valves formore severe applications.

At Emerson, we have a staff of talented engineers who are passionate about developing Fisher control valvesfor the ever-changing process control industry. Our engineers were the:

n First to develop the proven digital plant architecture, PlantWeb.n First flow test lab in the process control industry.n First to develop authoritative capacity and sizing data charts.n First to use rotary valves as process control valves.n First to commercialize quick-change, cage-style trim.n First to develop aerodynamic noise prediction techniques and procedures.n First to receive N-stamp certification and to manufacture automatic control

valves for nuclear power plants.n First to develop digital valve controllers and performance diagnostics for

improved control and predictive maintenance.n First to develop special control valve sizing procedures for non-ideal fluids,

non-Newtonian fluids, and out-gassing fluids.n First to provide a method for customers and consulting engineers to accurately

predict plant noise generated by control valves.n First to provide dedicated material expertise in the industry.

Were proud of our reputation for taking up challenges so that Its Never Been Done Before simply becomesConsider it Solved.

When you buy Fisher control valves, you get the applications experience that comes from over 130 yearsof work in the industry. Plus you get the benefit from millions of dollars of research invested in solving theissues important to you.

Fisher product specifications are, in many cases, more stringent than the industry accepted standards setby regulatory agencies. Our attention to and evaluation of product quality is necessary to bring you Fishertechnologies of the highest reliability and performance.

Using Fisher technology is the best way to achieve efficient, productive, and safer plant operation and this canbe demonstrated by a visit to the Emerson Innovation Center for Fisher Technology.


3/12

QUALIFYING CASTINGS

Casting quality is frequently cited as a safety issue. Globalsourcing of castings has heightened customer awarenessand concern about the integrity of these castings.

Emerson enforces a comprehensive quality specification forits Fisher control valves that must be met by all suppliers ofpressure-containing and structural metal castings. Theserequirements exceed those specified by ASME, ISO, and EN.

Emerson requires casting suppliers to submit all weldprocedures for approval to ensure they meet requirementsof ASME Section IX and Pressure Equipment Directive (PED).

In addition, samples must be submitted to the Emersonmaterials lab for metals that are especially problematic tocast and heat treat, such as duplex stainless steel andhigh-nickel alloys.

GOING BEYOND CODES

Minimal stress on all features of apressure vessel greatly improvesfatigue life and therefore, safety.Simply meeting minimum wallthickness requirements is notsufficient.

Using advanced finite elementanalysis (FEA) models, our engineers

analyze complex geometries incontrol valve designs to locate stressconcentrations. A cross sectionallook at the finite element analysismodel of an actuator illustratesareas of varying stress levels asshown by the color gradient. Designmodifications to minimize stressescan be quickly implemented beforeprototyping or production tryouts.

In addition to meeting minimumwall thickness specified in standards,

every Fisher structural designundergoes a proof hydrostatic testto verify that the stress does notexceed the code allowable stress andto validate the FEA model.

Fisher control

valves are used in

safety-critical areasof nuclear power

plants and it is

imperative that they

work when called

upon. They undergo

rigorous qualification

testing to satisfy the

requirements of ASME

QME-1, IEEE382,

IEEE344, and IEEE323.

Fisher Technology Development| 3


4/12

Leaking chemicals and gases can be harmful to health andto the environment. Accordingly, stringent regulationsare in place to control the amount of fugitive emissionsreleased into the atmosphere.

Fisher control valve packing technologies ensurecompliance with standards and customer expectations.These technologies offer excellent emission controlcapabilities and were tested and certified by these

international certification organizations: Cetim(ISO 15848-1 Class B), Yarmouth (FCI/ANSI 91-1), andTV (TA-Luft).

The helium mass spectrometer counts each atom of heliumdetected through the sniffer probe and calculates a leakrate. For the Fisher control valve shown above, the totalaccumulated leakage over one year would be equivalent toa bubble the size of a golf ball.

Emerson has multiple packing technologies that are sounique and novel that they are patented. Fisher packingtechnologies are methodically developed with rigorous

test techniques. These are regarded by our customers asbest-in-class packing that not only comply with emissionsstandards, but improve malodorous and harmful plantenvironments.

Where zero emissions are required, Fisher bellowstechnologies are available in corrosion-resistant materials.

LIMITING EMISSIONSIMPROVING OPERATIONAL SAFETY

Processes that involve toxic or highly flammable fluids relyupon safety instrumented systems. Lack of knowledgeof valve position or operation threatens worker safety,causes environmental concerns, and potentially damagesoperating equipment.

Emerson has developed digital valve controllers to meetcustomers emergency shutdown requirements. As part ofthe emergency shutdown valve package, the Fisher digital

valve controller enables automated partial stroke testingwhile the valve remains online. Diagnostics reportingprovides automated pass/fail results, an audit trail, andtime stamp.

Fisher SIS digital valve controllers have been certified byTV Product Services (Germany) to be in accordance withIEC61508 for use in safety instrumented systems up tosafety integrity level 3.

In addition to SIS technologies, Fisher and TopWorxwireless position monitoring technologies provideoperators with the status of their valves. Position

monitoring enables safe startups and shutdowns, reducesunintentional releases, and eliminates the need for visualinspection.

4 | Fisher Technology Development


5/12

QUIETING NOISE

Process plants require controlled noise levels to protectemployees. Reduced fenceline noise levels are alsonecessary to maintain good relationships with adjacent,populated areas.

Fisher noise attenuation technologies enable effectivenoise-reducing control valves and provide installedpredicted noise levels consistently, for compliance withregulatory limits.

Supported with a 4,738 m2 (51,000 ft2) facility and aunique 2,415 m2 (26,000 ft2) sound chamber, Emersoncan accurately quantify noise from piping and vents. Testprograms are conducted on Fisher control valves, valvetrim, silencers, diffusers, and spargers as well as tees,elbows, reducers, and expansions to determine theircontribution to overall noise.

Accelerometers and pressure transducers are used tomeasure pipewall vibration and sound level.

Acoustics expertise is utilized at all stages, from productdevelopment to application, quotation, and as-installed

performance. Experts are available to analyze the entireplant environment and solve noise problems beyond thecontrol valve.

DIAGNOSING CONTROL VALVES LOCALLY

Process equipment maintenance must be planned, yet itis difficult to know which equipment needs maintenance.Since control valves are the primary elements in the loopthat actually adjust the process, their performance isfundamental.

Since their introduction, Fisher digital valve controllershave changed the way plants monitor control valves.Features such as auto calibration; linkage-less, non-contact

feedback; and on-line performance diagnostics provideunsurpassed real-time plant performance. More than 50patents have been awarded for the product line.

Hazardous areas or hard-to-reach locations present barriersto locally verifying proper control valve performance. In thepast, local diagnostics required technicians to use laptops inthe field.

Emerson mobile technology offers a solution to thislongstanding problem through the use of handheld fieldcommunicators. This tool of choice for maintenancetechnicians has been expanded to include control valve

diagnostics. Fisher application software allows theextension of the technology to other handheld platforms,such as PDAs and smartphones. Catwalks, ladders, or otherdifficult locations no longer present a barrier to maintenancetechnicians. Diagnostic tests can now be run with ease andmobility.



6/12

QUALIFYING MATERIALS

Equipment constructed from amaterial incompatible with theprocess environment may damageoperating equipment or cause aplant shutdown.

Fisher material technologies offer asignificant reliability improvementover generic grades. Material

formulations are developed,specified, and controlled for metals,elastomers, and plastics in Fishercontrol valves.

A fully-equipped materials lab isstaffed by Emerson technologistswho verify that materialsand coatings will perform toexpectations physically andmechanically. If materials andsuppliers do not meet our stringentstandards, they are rejected.

Emerson technologists are industryleaders, developing new globalstandards and identifying newmaterials that will solve difficultcustomer problems. They are theones the industry turns to whenmaterials dont perform as expected.

PROTECTING COMPRESSORS

In order to operate more efficiently, liquefied natural gasplants prefer to run turbo compressors close to the surgelimit line. The margin for error to avoid equipment damageduring surge events is very narrow.

Antisurge valves must be responsive in order to protectcritical and costly compressors from damage duringtransients. They also must be accurate to allow operation atpeak efficiency.

Technologies incorporated in Fisher antisurge valves areunmatched by any other manufacturer. Fisher precisionactuation technology enables a full stroke up to 50.8 cm(20 in) in less than one second and better than 1%positioning accuracy for even very large control valves.

Setup and tuning can be performed remotely and inminutes. Without Fisher technology it can take hours.Factory acceptance testing to Fisher specification FGS 4L11typically eliminates the need for any tuning changes afterinstallation.

Fisher digital valve controllers use special, antisurge-

specific control and tuning algorithms for robust, stable,high performance control.

The FGS 4L11 factory acceptance test is becoming an LNGindustry standard. This performance standard is beingapplied to critical process control in all industries.

Elastomers are highly

documented as the

cause of downtimein plants. Off-the-shelf

elastomers cannot

meet climate extremes

and require extensive

qualification. Dynamic

mechanical analysis

has been performed

on each Fisher

elastomer formulation

to investigate the high

and low temperature.



7/12

WITHSTANDING VIBRATION

High vibration from process plant operation can shortenequipment service life, damage critical components, andcause deterioration or total loss of control.

Fisher control valves are designed and tested for robustnessin vibration applications. Emerson engineers qualifyproducts to industry vibration standards and then gofarther. For instance, Fisher products are subjected toadditional testing for millions of cycles at their resonant

(worst case) frequency to assure performance in yourprocess plant.

Fisher products, by design, are enhanced to improvevibration robustness. Wear points are eliminated in Fisherinstrumentation with linkage-less, non-contact positionfeedback. Integral mountings make brackets and externaltubing obsolete.

MODERNIZING UNITS

Stopping production and turning off profits in order tomodernize process units is not economically feasible.

A hot cutover allows plants to switch to digital withouttaking the process down. The ability of Fisher digital valvecontrollers to function in two operating modes, pressureand travel, has multiple benefits for hot cutovers. Fisherdigital valve controllers unique pressure control capabilitykeeps control valves at set point as you switch to digital

instrumentation.Personnel can locate the digital valve controller on thecontrol valve, make a fieldbus connection, and configureit to the pressure control mode to perform as a fieldbus-to-pressure transducer, providing input to the existingpneumatic positioner. Then, when the control room isready, the digital valve controller can be easily switched totravel control, replacing the pneumatic positioner.



8/12

SURVIVING EXTREMETEMPERATURES

REMOTE MOUNTSOLUTIONS

TROUBLESHOOTINGCONTROL VALVES

HIGH CYCLE TESTING

Whether driven by process

temperatures or climate

extremes, control valves need

to operate as specified.

LNG control valves are tested

at cryogenic temperatures of

-196C (-321F).

A refinery valve used in

catalytic reforming is

tested at 704C (1300F).

Remote mount solutions for

instrumentation decouple the

electronics from the process

environment for extended

temperature range.

While control valves are

on-line and in service, Fisher

digital valve controllers

can detect, capture, and

trend more than 200 fault

conditions and provide

recommended actions.

The cycle life of Fisher control

valves is verified. To meet

Emersons pressure swing

adsorption quality standard,

cycle counts must exceed

one million.



9/12

REDUCING PROCESS VARIABILITY

Reducing process variability is key to improving productquality. Excessive variability is the direct result of controlequipmentsuch as control valvesfailing to achieverequired performance levels.

To minimize variability, Emerson engineers performcomprehensive tests on complete control valve assembliesduring new product development. These control valveassemblies are subjected to on-line, dynamic performance

testing to evaluate their ability to reduce variability. Thesetests replicate how customers actually use control valves inthe field.

Fisher products have historically set the standard fordynamic performance. Emerson is dedicated to continuousimprovement of existing products. New products mustexceed the performance of the products they replace.Best-in-class flow lab facilities and control experts enableus to meet these challenges.

High consumption of compressed air or natural gas byinstruments means high energy costs for plants.

Emerson engineers developed technology in theinstrument product line that reduces steady-state air orgas consumption to 1/10th that of previous products forsignificant energy and economic savings. This technology isso novel that it is patented.

Emerson technologists use state-of-the-art analysistools and laboratories to maximize instrument controlperformance while minimizing air consumption.

REDUCING AIR OR GAS CONSUMPTION



10/12

ACCURATE ENGINEERING SPECIFICATION AND PROCUREMENT TIME

Sizing coefficients for Fisher control valves are based onactual flow tests performed by Emerson engineers. It is notnecessary to apply conservative sizing practices; therefore,project costs are reduced.

Every Fisher control valve design undergoes thoroughand extensive flow testing. Test engineers determinesizing coefficients, stem force or hydrodynamic torquerequirements, and investigate actual performance.

Real processes often operate under conditions that arebeyond the scope of industry standards. Enhanced controlvalve application technology has been developed thathelps ensure that correct valve sizes are specified for allapplication conditions. Examples include non-ideal gases,multi-phase flow, and out-gassing fluids. Correct valvesizes help ensure safe and trouble-free operation, avoidingadjustments during startup.

Test engineers operate three flow labs on three continentsgiving Emerson engineers access to flow lines up to NPS 36and 240 bar (3,500 psig).

An ISA data sheet has 120 fields that must be agreed uponbetween the control valve specifier, supplier, and end user.Control valves are designed for each unique installation andrequire an intense exchange of information.

Fisher Specification Manager software helps you manageyour control valve specification data. It enables seamlessimport/export data exchange with Intergraphs SmartPlantInstrumentation.



11/12

INTEGRATION

Emerson recognizes that process plants are interconnectingproducts from different suppliers and that true interoperabilityis essential.

Emerson tests different hardware and firmware versions ofFisher control valves, digital valve controllers, and softwareto assure no loss of functionality or data. Fisher productsare connected to various communication protocols,automation systems, multiplexers, wireless gateways,

and Windows operating systems. Testing a variety ofFisher control valve and instrument revisions confirms thatcurrent and legacy devices integrate properly into userinterface tools.

INSTALLATION TIME AND COST

Reduced installation time and costresult in faster time to market. WithFisher control valves, you will realizesignificant savings.

n Industry-leading wireless productscan eliminate wiring all together.

n Foundation eldbus reduces eldwiring expense.

nRealize reduced commissioningtime with ease-of-use featuressuch as auto calibration and tuningfor Fisher digital valve controllers.

n Fisher digital valve controllers withnon-contact, linkage-less feedbackallow for reduced mounting andcalibration time.

n Fisher software allows commission-ing of all control valves from themaintenance engineers workstation.

n Factory acceptance testing

documented by FGS 4L11 reduceson-site tuning for compressorcontrol and other criticalapplications.

Testing ensures

flexibility of control

valve installationorientation. Fisher

rotary control valves

can be mounted in

either horizontal

or vertical position

without compromising

cycle life.



12/12

Fisher technology developmentcapabilities extend worldwide withengineers and labs in North America,Europe, and Asia. We have subjectmatter expertise in the followingfields:

n Accelerated testingn AcousticsnAdvanced modelingnCodes and standardsnControl theorynDesign of experimentsn Embedded rmware designn Fluid behavior and thermodynamicsn Low power electronicsnMaterialsn Seismic analysisn Statisticsn Structural analysisn Test automationnVibrationnWireless

D351843X012 / H: / Nov10

Emerson Process Management

Marshalltown, Iowa 50158 USASorocaba, 18087 BrazilChatham, Kent ME4 4QZ UKDubai, United Arab EmiratesSingapore 128461 Singaporewww.EmersonProcess.com/Fisher

Fisher Controls International LLC 2010 All Rights Reserved.

Fisher, PlantWeb, and TopWorx are marks owned by one of the companies in the Emerson Process Managementbusiness division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo aretrademarks and service marks of Emerson Electric Co. All other marks are the property of their respectiveowners.

The contents of this publication are presented for informational purposes only, and while every effort hasbeen made to ensure their accuracy they are not to be construed as warranties or guarantees, expressor implied, regarding the products or services described herein or their use or applicability. All sales aregoverned by our terms and conditions, which are available upon request. We reserve the right to modifyor improve the designs or specications of such products at any time without notice. Neither Emerson,Emerson Process Management, nor any of their afliated entities assumes responsibility for the selection,use, or maintenance of any product. Responsibility for proper selection, use, and maintenance of anyproduct remains solely with the purchaser and end-user.

WORLDWIDE LABS INCLUDE:

n Acoustics Labn Calibration Labn Cycle Test Labn Experimental Stress Analysis Labn Firmware Development Labn Flow Labn Hot Air Testing Labn Instrument Endurance Labn Instrument Environmental Lab

n Instrument Electronics Labn Instrument Firmware Test Labn Instrument Integration Test Labn Instrument Manufacturing Labn Instrument Marketing Labn Instrument Mechanical Labn Instrument Product Evaluation Labn Instrument Research Labn Instrument Technical Support Lab

n Instrument User Interface Labn Materials Labn Optimized Digital Valve Labn PlantWeb Demonstration Labn Performance Differentiation Labn Prototype Development Labn Seismic Labn Vent Testing Labn Vibration Lab

fisher valves

Documents