Product Description Model NO.: H74H Connection Form: Lug Function: Ddcv Double Lobe, Nrvr Silence, Nrvz Silence, Nrvg Silence Trademark: VATAC or OEM Origin: Zhejiang, China Material: Stainless Steel Structure: Swing Application: Industrial Usage, Water Industrial Usage, Household Usage Specification: API 6D, BS1868, DIN3202, ISO HS Code: 8481804090
Product Description:

Pressure sealing cover, swing type disc
Threaded or welded seat ring
ASTM A216 WCB, A217 Wc6, A351 CF8, A351 CF8M,
A351 CF3, A351 CF3M, A351 CN7M
Standards compliance
Design and Manufacture: ANSIB16.34, API 6D, BS1868
Face to face(end to end): ANSIB16.10, API 6D
Flanged connection: 2~~24~to ANSIB16.5
Butt welded end: ANSIB16.25
Test and inspection: API 598, API 6D
A. Back up ring: Absorbs thrust applied by internal pressure.
B. Thrust ring: Pretects the soft metallic gasket from detemation.
C. Gasket Unique angutar design provides superior sealing.

 
 

Construction is as follows:
- Full Open, or Reduce Pore
- Piston Check
- Ball Check
- Swing Check
- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet
- With or without counterweight
- Butt Weld Ends to ASME B16.25
- Flanged Ends to ASME B16.5 and B16.47 A/B
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
Stem	F6a	F304	F6a	F304	F316	F304L	F316L	C83600/C95800
Seat/Seat Ring	13%Cr	SS304	13%Cr	SS304	SS316	SS304L	SS316L	C83600/C95800
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

Contact us if you need more details on 150lb Lug Dual Plate Check Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Cast Iron Lug Dual Plate Check Valve、3" Lug Dual Plate Check Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Wafer Check Valve > Dual Plate Check Valve