API 594 Wafer Dual Plate Check Valve Manufacturer

• Material: Cast Steel
• Connection Form: Wafer
• Structure: Dual Plate
• Pressure: Ordinary Pressure
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Flow Direction: Unidirection
• Model NO.: H44
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Characteristic: Wafer Dual Plate Check Valve
• Design & Manufacture: API 594, Asme B16.34
• Pre-Temp. Rating: Asme B16.34
• Face to Face: Asme B16.10
• Ends Connection: Wafer
• Inspect & Test: API 598
• Certificate 1: Dnv CE 0575
• Certificate 2: ISO9001:2008
• Transport Package: Standard Sea Worthy or Air Worthy
• Specification: API 6d, Bs1868, DIN3202, ISO
• Trademark: VATAC or OEM
• Origin: China
• HS Code: 84818040
• Production Capacity: 6000ton Per Year

Product Description

API 594 Wafer Dual Plate Check Valve Conform to API 594, API 6D, and ASME B16.34.  They are tested according to API 598, and marked as per MSS SP-25  

1. Construction is as follows:  

- Dual Plate

- With Spring

- Round, Full Lug or Double Flange

- Soft or Metal Seated

- Retainer or Retainer Less Design

- Wafer Ends to Suit for Flanged Ends(ASME B16.5 and B16.47 A/B)

 
2. Main Part & Materials 

Part Names	Part Materials
Body	WCB	LCB	WC6	CF8	CF8M	CF3	CF3M	C83600/C95800
Bonnet	WCB	LCB	WC6	CF8	CF8M	CF3	CF3M	C83600/C95800
Disc/Ball/Wedge	WCB	LCB	WC6	CF8	CF8M	CF3	CF3M	C83600/C95800
Seat/Seat Ring	13%Cr	SS304	13%Cr	SS304	SS316	SS304L	SS316L	C83600/C95800
	PTFE/NBR/EPDM/VITON
Packing	Graphite/PTFE
Gasket	SS304+Graphite/SS304+Graphite
Bolts/Nuts	B7/2H	L7/4	B16/4	B8/8	B8M/8M	B8/8	B8M/8M	B8M/8M
Suitable Medium	W.O.G etc.			HNO3, CH3OOH etc.				Sea Water etc.
Suitable Temperature	-29~425 °C	-46~340 °C	-46~340 °C	-196~427 °C	-196~427 °C	-196~427 °C	-196~427 °C	-29~220 °C

 
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500

4. Normal Size Range
DN40~DN1000, 1 1/2"~40"