Product Description Model NO.: H44H Connection Form: Flange Pressure: Ordinary Pressure Sealing Form: Body Seat Standard: DIN Characteristic: Cast Iron Check Valve Pre-Temp. Rating: Asme B16.34 Ends Connection: Asme B16.25, Asme B16.5/16.47 Certificate 1: Dnv CE 0575 Certificate 3: API 6D Trademark: VATAC/VANGO or OEM Origin: China Material: Cast Iron Structure: Swing Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence Flow Direction: Unidirection Application: Industrial Usage, Water Industrial Usage, Household Usage Design & Manufacture: BS1868, API 6D, Asme B16.34 Face to Face: Asme B16.10 Inspect & Test: API 598 Certificate 2: ISO9001:2008 Certificate 4: API 600 Specification: API, ANSI, ASME, BS, DIN, JIS, GB etc. HS Code: 84818010 Bolted Bonnet Cast Iron Check Valve (H44H) Conform to BS1868, API 6D, ASME B16.34,  They are tested according to API 598, and marked as per MSS SP-25.
 
1. 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

- RF Ends to ASME B16.5 or B 16.47 A/B

- Butt Weld Ends to ASME B16.25

 
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
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

 
3. Normal Pressure Rating
PN10&PN16, CLASS150 

4. Normal Size Range
DN50~D750, 2"~30" 

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