Single Disc Swing Viton Seat Check Valve

• Customization: Available
• Material: Stainless Steel
• Connection Form: Wafer
• Model NO.: H74X
• Structure: Wafer Single Plate
• Pressure: 150lb-1500lb
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Soft
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 1/2"-48"
• Temperature of Media: Normal Temperature
• Design & Manufacture: API 594, API 6D, Asme B16.34
• Pre-Temp. Rating: Asme B16.34
• Face to Face: API594
• Ends Connection: Asme B16.25, Asme B16.5/16.47
• Inspect & Test: API 598
• Certificate 1: Dnv CE 0575/Sio9001
• Certificate 2: API 600
• Certificate 3: API 6D
• Transport Package: Sea Worthy
• Specification: API 6D, BS1868, DIN3202, ISO
• Trademark: VATAC or OEM
• Origin: China
• HS Code: 8481804090
• Production Capacity: 63000 PCS Per Year

Product Description

Product Description

Structure: Check
Pressure: Low to high pressure
Power: Hydraulic
Material: Casting
Temperature of Media: Normal Temperature
Media: Base

1) Sizes: 1/2''-40''
2) Class: 150-1, 500Lbs
3) Material: WCB, LCB, CF8 304, CF8M 316, CF3 304L, CF3M 316L, WC1, WC6, WC9, CN7M, Monel

4) Stardards:
A) Design and manufacture: API 6D, API594
B) Face to face: API 6D, API594, DIN 3202
C) End flange dimensions: ANSI B16.5, ANSI B16.47, API605, MSS SP-44, ISO7005-1, DIN2543-2548
D) Pressure-temperature ratings: ASME B 16.34
5) Inspection and test: API598, API 6D

Structure features:

1, It is short in face to face dimensions, being 1/4-1/8 times that of traditional flange type check valve.
2, It is impact in volume size and light in weight of about 1/4-1/20 times that of traditional flange type check valve.
3, The disc closes quickly with less water hammer pressure.
4, It is convenient in installation, being available for use on level or vertical pipeline.

5, Flow passage is fluent with flow resistance.
6, It acts sensitively with good sealing effect.
7, Disc travel is short with less impact force caused by valve closing.
8, It is impact in integral structure with nice outline view.
9, It is longer for service life with high reliability.
 

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