Nodular Cast Iron Wafer Butterfly Check Valve (WDS)

• Media: Water
• Temperature: Low Temperature
• Material: Cast Iron
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: WDS
• Connection Form: Flange
• Structure: Swing
• Pressure: Low Pressure
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Bellows Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Colour: Green, Gray, Blue, Red
• Origin Place: Tianjin, China
• Nozzle Check Valve: Nozzle Check Valve
• Check Valve: Check Valve
• Non-Slam Check Valve: Non-Slam Check Valve
• Control Valve: Control Valve
• Transport Package: Plywood Case Packing
• Specification: CE, ISO, JIS, BS, GB, EN, ANSI
• Trademark: WDS
• Origin: Tianjin, China
• HS Code: 8481804090
• Production Capacity: 100, 000, 000sets/Year
• Package Size: 110.00cm * 110.00cm * 90.00cm
• Package Gross Weight: 200.000kg

Product Description

Size:	DN50-DN1200
End flange:	ANSI B16.1 125LB BS4504 PN10 & PN16 EN1092-2 PN10 & PN16 AS 2129-2000 Table D  Table E ISO 7005 PN10 & PN16 ASME B16.5 150LB JIS B2220 5K/10K
Face to face:	EN558-1 Series16, ISO 5752 Series16 , ANSI B16.10 , API 594 125LB,API 594 150LB EN558-1  SERIES 50
Top flange:	ISO 5211
Normal pressure:	PN1.0/1.6MPa(150/200PSI)
Body:	CI/DI/WCB/ALB/CF8/CF8M
Disc:	DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy Alloy/Monel
Stem:	410/416/304/431/17-4PH/316/monel
Seat:	NBR/Hypalon/EPDM/Neoprene/NR/Wear-Resistant EPDM/ /Silicon/Heat-Resistant EPDM/White EPDM/EPDM()/PTFE
Suitable temperature:	-10~120
Medium:	Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc.

Our check valve is economically priced but with higher quality and capability than most
at this market
Product Feature:
Pressure seal design.
Unique cage unit: entire seat-hinge-pin-disc assembly can be tested outside the valve before seal welding into the body. Eliminates pin seal leakage.
Easy in-line service.
Efficient operation. The hinge pin located near the center of gravity allows the conical seating face of the disc to move out and into the seat rapidly without sliding or wear. The disc pivots through a small arc preventing backflow and "water hammer".
Superior tightness: conical, lapped-in hardfaced seating is self-aligning. Valve can be used even in vertical piping with flow up.

Technical Parameters:

Size	DN50-DN900
Working pressure	16Bar	10Bar
Shell	24Bar	15Bar
Seal	18Bar	11Bar
Operating Temperature	-10ºC~+120ºC
Operating Environment	Ballast and bilge system     Chemical processing Desalination plants  Drilling rigs     Drinking waterDry powder      Food and beverage Gas plants HAVC  Mining industry Paper industry Sand handling Seawater     Sugar industry Thermo technical water treatment   Waste water

 Main Material:

Name	Material
Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-Bronze
Disc	Ductile Iron  Carbon Steel Stainless Steel  AL-Bronze
Pin	Stainless Steel  Monel K500
Seat	BUNA  NBR  EPDM   HEPDM  Neoprene  Hypalon Natural rubber

Executive Standard:

Design Standard	EN12334  EN14341
Inspection & Test	EN12266-1  ISO5208
End Standard	ANSI B16.1 125LB BS4504 PN10 & PN16 EN1092-2 PN10 & PN16 AS 2129-2000 Table D  Table E ISO 7005 PN10 & PN16 ASME B16.5 150LB JIS B2220 5K/10K
Face to Face	EN558-1 Series16   ISO 5752 Series16   ANSI B16.10  GB/T12221  DIN3202 K3IN3202

**COMPANY INTRODUCTION


**Company Goal : OEM service for world-famous valve brand.


**Design & Development ability -- SolidWorks, Pro / E, AutoCAD etc


**Dimension Measurement &Inspection 


**Assembly Workshop


**Packaging 


**Certificates --  CE  ISO  WRAS  ACS certificates