Product Description Model NO.: H74X Connection Form: Wafer Pressure: 150lb~600lb Flow Direction: Unidirection Application: Industrial Usage, Water Industrial Usage, Household Usage Design & Manufacture: API 594, API 6D, Asme B16.34 Face to Face: API 594 Inspect & Test: API 598 Certificate 2: ISO 9001: 2008 Certificate 4: API 6D Specification: API 6D, BS1868, DIN3202, ISO HS Code: 8481804090 Material: Stainless Steel Structure: Swing Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence Standard: ANSI Characteristic: Single Disc Wafer Check Valve Pre-Temp. Rating: Asme B16.34 Ends Connection: Asme B16.5/16.47 Certificate 1: Dnv CE 0575 Certificate 3: API 600 Trademark: VATAC or OEM Origin: Zhejiang, China 1/2"~40" Cast Steel Single Disc Wafer 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:

- Single Disc

- With Spring

- Swing Disc or Lift Disc

- 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/A105	LCB/LF2	WC6/F22	CF8/F304	CF8M/F316	CF3/F304L	CF3M/F316L	C83600/C95800
Bonnet	WCB/A105	LCB/LF2	WC6/F22	CF8/F304	CF8M/F316	CF3/F304L	CF3M/F316L	C83600/C95800
Disc/Ball/Wedge	WCB/A105	LCB/LF2	WC6/F22	CF8/F304	CF8M/F316	CF3/F304L	CF3M/F316L	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
DN15~DN1000, 1/2"~40"

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Product Categories : Wafer Check Valve > Single Disc Check Valve