Wenzhou Goldtop Valve Co.LTD
Wenzhou Goldtop Valve Co.LTD

Gold top valve  located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,Gate globe check valve ,butterfly valve ,etc.Surely we can design them by customer's special requirements.

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API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM

API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM

  • API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM
  • API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM
API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM
Product Details:
Place of Origin: 中国
Brand Name: GOLD TOP
Certification: API6D
Model Number: H41H
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: wooden box
Supply Ability: 100+pcs+15days
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Detailed Product Description
Material: A216 WCB、WCC;A217 WC6、WC9、C5、C12、C12A、CA15;A351 CF8、CF8M、CF3、CF3M、CF8C、CN3MN、CK3MCUN Design Standard: API 6D、API 594、BS 1868、ASME B16.34
Structural Length: ASME B16.10 Connecting End: ASME B16.5、ASME B16.25
Test Standard: API 598、ISO 5208 Pressure: 150-2500 CLASS
High Light:

metal seated check valve


high pressure check valve

Technical parameters and characteristics:

Product type Switch valve
Product description Swing check valve
Model H44H-swing check valve
Nominal diameter 2”~50”(50mm~1250mm)
Operating temperature -196℃~593℃(the range of service temperature may vary for different materials)
Operating pressure 150-2500 CLASS
Material Main material: A216 WCB,WCC;A217 WC6,WC9,C5,C12,C12A,CA15;A351 CF8,CF8M,CF3,CF3M,CF8C,CN3MN,CK3MCUN,CN7M;A352 LCB,LCC;A494 CW-6MC,CU5MCuC,M35-1;A995 4A(CD3MN),5A(CE3MN),6A(CD3MWCuN);ASME B 148 C95800,C95500, etc.
Design standard API 6D,API 594,BS 1868,ASME B16.34,GB 12236,GB 12224
Structural length ASME B16.10
Connecting end ASME B16.5,ASME B16.25,GB 9113,GB 12224
Test standard API 598,ISO 5208,JB/T9092,GB/T13927
Operation method The valve clack can be automatically opened and closed with the medium force, movement weight can be increased to facilitate fast closing of valve clack, hydraulic cylinder can be increased to facilitate slow closing of valve clack to prevent vibration of pipeline, and pigging can be performed through manual opening and locking the valve clack at the opening position.
Application fields For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc.
Other remarks 1 The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve.
Other remarks 2 SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing.
Other remarks 3 Suitable for medium backflow prevention in pipeline or device
Other remarks 4 Large check valves are designed with hydraulic damping cylinder to prevent the valve clack from bumping the valve seat, damaging the valve or causing pipeline vibration due to fast closing.
Other remarks 5 In case of pigging requirement, API 6D swing check valve can be manually operated to fix the opening position of valve clack, so as to achieve the pigging objective.

swing check valve is designed and manufactured according to American National Standards (ANSI B16.34) and American Petroleum Institute (API16D). Swing disc with straight channel which can be installed in both horizontal and vertical pipelines. The inner hinge pin can avoid external leakage. Bolted bonnet design. When pressure is higher than Class 600Lb, pressure self-sealing structure is adopted, which can reduce the valve weight and have reliable seal.

Standards (fire proof & antistatic)
Type Design & Manufacture Face to Face Flange Dimension Pressure & Temperature Test & Examination
Swing Check Valve
Lift Check Valve
ANSI B16.34
ANSI B16.10 ANSI B16.5a ANSI B16.34 API 598

Pressure Test

Nominal Pressure Shell Test Water Seal Test Air Seal Test
MPa Lbf/in2 MPa Lbf/in2 MPa Lbf/in2
150 3.1 450 2.2 315 0.5~0.7 60~100
300 7.8 1125 5.6 815
600 15.3 2225 11.2 1630
900 23.1 3350 16.8 2440

Component Materials

Disc & Yoke WCB CF8 CF8M Monel
Hinge Pin F6a F304 F316 Monel F304
Disc Surface 13Cr 13Cr STL 304 STL 316 STL Monel 304 304 STL
Seat Surface 13Cr STL STL 304 STL 316 STL Monel 304 STL STL
Body ASTM A351 CF3 ADTM A351 CF8M ASTM A351 CF8
Disc & Yoke
Hinge Pin F304L F316L F316
Disc Surface 304L 304L STL 316 316 STL 316L 316L STL
Seat Surface 304L STL STL 316 STL STL 316L STL STL

Main Dimensions

Sizes inch 2" 2-1/2" 3" 4" 5" 6" 8" 10" 12" 14" 16" 18" 20" 24"
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
L mm 203 216 241 292 330 356 495 622 699 787 914 978 978 1275
H mm 142 166 178 236 252 266 314 368 429 455 410 560 600 880

API 594 ASME B16.34 Silent Check Valve , Swing Stainless Check Valve OEM ODM 0

Contact Details
Wenzhou Goldtop Valve Co.LTD

Contact Person: sales

Tel: +8613758447235

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