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.

Home ProductsSwing Check Valve

BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20

BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20

  • BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20
  • BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20
BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20
Product Details:
Place of Origin: 中国
Brand Name: GOLD TOP
Certification: API 6D
Payment & Shipping Terms:
Minimum Order Quantity: 1pcs
Price: Negotiation
Packaging Details: Plywood Case
Delivery Time: 30days
Supply Ability: 100+pcs+30days
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Detailed Product Description
Material: Carbon / Stainless / Alloy / Duplex Steel Size: 2"~36"
End Connection: FF / RF/ RTJ / BW Pressure: 150# ~1500 #
Testing Standard: API598 Disc Type: Swing Type
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lift check valve


metal seated check valve

BW Flanged End Swing Check Valve Stellited Threaded Seat WCB CF3M CF8M Alloy 20
Swing Check Valve
Bolted Cover Design, Flanged End Swing Check Valves
A Swing Check Valve or tilting disc check valve is check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow, or off the seat to allow forward flow.
Swing Check Valves are having Bolted cover, Swing type disc. Our special design feature provides a rugged construction, reliable operation and long service life. These valves are used to prevent flow reversal in piping systems.
Pressure sealed bonnet design is incorporated for high pressure applications for reliable sealing. They are suitable for service in horizontal piping runs. Swing Check Valves have low pressure drop and are best suited for moderate velocity applications. Correct sizing of swing check valves is important. Either too low a line velocity or too high a velocity can damage valve internals and shorten valve life.
The valve finds applications in various segments of the process industries covering oil & gas, refineries, petrochemicals, fertilizers, power plants and common utilities. Valve can be provided with a external dashpot arrangement to provide non-slam operation, ideal to prevent water hamme
Salient Features
  • Body & Cover made from high quality casting with liberal sections. The castings are precision machined for high performance.
  • Body Seat Ring & Disc machined to close Tolerances providing smooth action and accurate seating.
  • Seat Ring Screwed in to the body are replaceable type. Seal welded type Seat Ring & Integral Seat cab also be offered on special request.
  • Stellited Seat Ring & Disc also be offered on special request.
  • In built wear life for long duration in service.
  • Valve Range: Size 2-36Inch (DN50-DN900), Rating Class 150-1500Lb (PN16-PN250)
  • Valve Applications: Oil Industry, Chemical, Power Station, Refinery, Water Treatment, Other
  • Design Standard: BS1868, AP6D, ASME B16.34, API 594, Other
  • Face-to-Face Standard: ASME B16.10, API6D, Other
  • Connection Standard: Flange per ASME B16.5/ASME B16.47(NPS≥26”), BW per ASME B16.25, SW per ASME B16.11, NPT per ASME B1.20.1, Other
  • Testing Standard: API 598
  • Type of Bore: Full Bore, Other
  • Valve Material: Cast Steel
  • Connection Type: FF, RF, RTJ, BW
  • Disc Type: Swing Type
  • Seat Type: Welded Seat, Threaded Seat, Integral Seat, Other
  • Body-Bonnet Connection Type: Bolted Bonnet, Other
  • Other Features: Hard Facing, Bypass Arrangement, Drain and Vent Connection, Outside
Conformity Codes and Standard
  1. Design and Manufacturing Standard : BS 1868 / BS 5351 / ANSI B 16.34 / API 6D /ASME B16.34 
  2. Testing Standard : API 598 / EN 12266 PART 1 (BS 6755 PART 1) /BS EN 12266 -1
  3. Face to Face : ANSI B16.10
  4. End Connection : Buttweld End to ANSI B 16.25 , Flanged Ends to ANSI B16.5 RF 150# / 300# / 600# / 900# / 1500#
  5. Flange Drilling : ANSI B 16.5 / BS 10 Table / DIN / IS 6392
  6. Pressure & Temperature Rating : ASME B16.34
Material Of Construction
  1. Body : IS 210 Gr FG 200 / ASTM A 216 GR WCB / ASTM A 351 GR CF8 / CF8M / CF3 / CF3M / 4A / 5A / 6A / HAST B / HAST C / MONEL / INCONEL 625 & 825 / ALLOY 20
  2. End Connection : Flanged end raised face / Butt weld end / RTJ.
  3. Flanged End : AS PER ANSI B 16.5
  4. Pressure Rating : 125#, 150#, 300#, 600#, 800#, 900#, 1500#, PN16 & PN40
  5. Shell :WCB/ WC1/ WC6/ WC9/ LCB/ LCC/ LC3/ C5,/ C12/ CF8/ CF8M/ CF3/ CF3M/ CF8C/ CN7M/ CD4MCu/ Hast B/ Hast C/ Inconel 625 & 825/ 4A / 5A/ 6A
  6. Design Type : Swing Type Disc 
  7. Trim :13% Cr. Steel/ 304/ 304L/ 316/ 316L/ 321/ 347/ Monel/ Duplex Stainless Steel
Main Material Applied for Swing Check Valve
Main Material List
A216-WCB/WCC,A352-LCB/LCC,A217-WC6/WC9/C5/C12,A351-CF8/CF8M/CF3/CF3M/CF8C/CN7M,A890 4A/5A/6A
A216-WCB/WCC,A352-LCB/LCC,A217-WC6/WC9/C5/C12,A351-CF8/CF8M/CF3/CF3M/CF8C/CN7M,A890 4A/5A/6A,A217-CA15,Other
Seat Ring
Seal Surface
SS304+Graphite, SS316+Graphite,SS316L+Graphite,1008,SS304L,SS316L, Other
Flexible Graphite, Other
A193 Gr.B7(M)/A194 Gr.2H(M), A320 Gr.L7(M)/ A194 Gr.7(M) or Gr.4(M), A193 Gr.B16/ A194 Gr.7,A193 Gr.B8/ A194 Gr.8,
A193 Gr.B8M/A194 Gr.8M,A453 Gr.660,etc

Contact Details
Wenzhou Goldtop Valve Co.LTD

Contact Person: sales

Tel: +8613758447235

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