Bulletin No. BH1030 J/E 1 /2002 Rev. C 21000 Series Control Valves 70000 Series Control Valves Heavy Duty Top Guided Single Port Globe & Angle Valves 21000 型グローブ形単座調節弁 型グローブ形単座調節弁 型グローブ形単座調節弁 型グローブ形単座調節弁 70000 型アングル形単座調節弁 型アングル形単座調節弁 型アングル形単座調節弁 型アングル形単座調節弁
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21000 Series Control Valves 70000 Series Control … valve/NIMCO...Masoneilan 70000 Series angle valves incorporate the best features of the Masoneilan 21000 Series top-guided, single-port
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Bulletin No. BH1030 J/E1 /2002 Rev. C
21000 Series Control Valves70000 Series Control Valves Heavy Duty Top Guided Single Port Globe & Angle Valves
The 21000/70000 Series single ported heavy - duty topguided control valves are designed with built-inversatility that makes them well-suited to handle a widevariety of process applications.
Key Design Characteristics are ;
・Top Guided・High Capacity with Low Recovery・High Allowable Pressure Drop・Tight Shutoff・Wide Temperature Range・High Performance Materials・Simple, High Performance Trim Packages・Low Noise and Anti-cavitation Capability・Cage type Quick Change or Threaded Seat Ring・Low Emission Stem Packing.
PlugSince the plugs of 21000/70000 series are of heavy-dutyand guided at the top only, body parts are held to aminimum.Except a part of mini-trim, either equal percentage orlinear is available for all sizes.Full capacity and reduced trims are available as standard inall sizes.Seat RingThreaded seat ring is standard for ASME Class 600 andlower. For ASME Class 900 and higher, quick changetrim is standard.
Quick-change typeThe 21000 Series valve with quick-change utilizes a slip-in seat ring and matching slip-in retainer. The retainer andseat ring are held in place by the bonnet. All that isrequired to change the trim is to remove the bonnet,withdraw the retainer, and slip the seat ring out of thebody. The entire operation can be performed with thevalve in the line. Since the seat ring is not screwed intothe body, most of the difficulties encountered in seat ringreplacement are eliminated.
Other Quick-changes 1) Small-hole Retainer Type(21004SH/70004SH Series)
Seat ring retainer with multi-hole has an effect toattenuate noise for steam service. Whenever furthernoise attenuation is required, Lo-db trim will be adopted.
2) Retainer-guided Type (21009/70009 Series)This type is suitable for high pressure and hightemperature service since the plug is guided by seatring retainer with the following effects:
● Concentricity of plug and seat ring can be easilyand securely aligned.
●Plug guide is more durable than standard type.3) Small-hole Retainer-guided Type.
70000 Series Angle ValveMasoneilan 70000 Series angle valves incorporate the bestfeatures of the Masoneilan 21000 Series top-guided, single-port control valves in a solid-cast, self-draining, top-entry anglevalve body. This rugged, field-proven valve line has now beenexpanded to include four basic versions: standard, highpressure, standard quick-change trim and balanced quick -change trim in a broad selection of sizes and ratings to meet afull angle of services and needs.The 70000 Series Angle valves are particularly suitable forhandling slurries and corrosive liquids. Their angle designprovides flow surfaces that slope down-stream permitting thevalve and line to self drain. The smoothly contoured surfacesminimize turbulence and prevent entrapment of particles whichcan cause valve clogging. In addition, the plugs are contouredtop and bottom to reduce fluid traps.The 70000 Series Angle valves are also ideally suited forspecial applications such as hydrocarbon service involvingsevere operating conditions where high temperatures and/orhigh pressures, high pressure drops, severe coking conditionsand flashing liquids may be encountered. They are particularlyadopted to pressure or level control systems and emergencyblow-down or dropout service. A special group of high pressure70000 Series Angle valves are available and specificallydesigned for operating conditions involving especially highpressure and/or high pressure drops.
Parts interchangeability with 21000 Series globe valves.With the exception of the bodies, most parts of the 70000Series, including trim, are interchangeable with parts of thesame size and function in the 21000 Series solid-cast globevalves. Accordingly, users having a need for both types ofvalves can keep parts inventories and related maintenance at aminimum.Venturi seat ring linersVenturi seat ring liners are available in the standard 70000Series Angle valve in ASME class 600 and lower and only onreduced area trim. These venturis, available in most of he samematerials as the trim, provide a protective liner from the seat ringto the valve outlet to resist erosion which may occur in certaintypes of service and operating conditions.
Single Stage Lo-db TrimModel 21710/70710 Lo-db Valves for3/4” to 6” ratedASME Class 600 and lower have unique Lo-db trims.Double Stage Lodb TrimThe 21910/70910 Series valves feature Lo-db plugand Lo-db cage designs.For valve sizes 1/2” to 6”rated ASME Class 600 andlower ,valve sizes 3/4" to 1-1/2"rated ASME Class 900& 1500. The valves are designed for gas serviceapplications.High Pressure Lo-db Cage TrimOn the basis of 21000 series design, 21119HP and70119HP series were developed by NiigataMasoneilan Co.,Ltd. to minimize noise level andvibration through trim particularly for compressivesteam and gas of high differential pressure.Plug is unbalanced, single seated type, and cage isLo-db type for high pressure reduction. Thesevalves are suitable for superheated steam over 10Mpadifferential pressure, saturated steam between 5 and 10Mpa and compressive fluid of high differential pressure.
1 : Unbalanced Contoured7 : Single Stage Lo-db9: Double
StageLo-db
Characteristics
0 : Equal % -Linear
1 : Linear2 : Equal4 : Semi- throttle
Trim Type
4 : Quick -change5 : Threaded6 : Soft Seat
(Threaded)7 : Soft Seat
(Quick -change)9 : Retainer Guided
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Body Materials : Carbon Steel or Low Alloy SteelFluid Temperature→
(℃)-29 ↓
350↓
425↓
450↓
565 ↓
Ref. No. Part Name Standard MaterialCarbon Steel18 BodyLow Alloy SteelCarbon Steel (ASTM A105 for Forging)8 Bonnet Low Alloy Steel (ASTM F11 for Forging)
9 Body Stud SNB 7 SNB 1610 Body Nut ASTMA 194 Gr.2H ASTM A194 Gr.4
1 Plug Stem SUS 31617 Plug Stem Pin SUS 31612 Guide Bushing SUS 440B SUH 3 Nitrided11 Body Gasket Spiral wound15 Seat Ring Gasket Spiral wound6 Packing See Specifications Sheet5 Gland SUS 3162 Packing Stud SUS 304 (ASTM A193 Gr.B8 ClassⅡfor ANSI Class 900 and Over)3 Packing Nut SUS 3044 Packing Flange SCM 435 or S25C7 Packing Spacer SUS 316
Ref. No. Part Name Standard Material18 Body Stainless Steel
8 Bonnet Stainless Steel (SUS 316 for Forging)9 Body Stud A193 Gr.B8 Class II SNB7 SNB 1610 Body Nut SUS 304 A194 Gr. 2H A194 Gr. 416 Plug SUS 316, SUS 316 Stellited or SUH 66014 Seat Ring SUS 316(SCS14A), SUS 316(SCS14A) Stellited or SUH 66013 #21004 SUS 316(SCS14A)
13ASeat RingRetainer #21009 SUS 316 Cr. Plating SUS 316 Stellite Guide
1 Plug Stem SUS 316 or SUH 66017 Plug Stem Pin SUS 31612 Guide Bushing Solid Stellite11 Body Gasket Spiral wound15 Seat Ring Gasket Spiral wound6 Packing See Specifications Sheet5 Gland SUS 3162 Packing Stud SUS 304 (ASTM A193 Gr. B8 ClassⅡfor ASME Class 900 and Over)2 Packing Nut SUS 3044 Packing Flange SCM 435 or S25C7 Packing Spacer SUS 316
注)表記質量表は参考用です。 Note) Weights noted throughout text are reference only. 注) 本カタログの内容に付いては予告なく変更することがあります。 Note) The contents of this brochure may be subject to change without notice.
◆交換部品は、当社の純正部品を使用して下さい。非純正部品の使用は作動不良や流体漏洩の原因となります。Use of our genuine or authorized parts for replacement is strongly, Malfunctions or leakages may result withoutusing them.