Bolt Bonnet Cast Iron Check Valve (H44H)

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-

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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
BodyWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800
BonnetWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800
Disc/Ball/WedgeWCBLCBWC6CF8CF8MCF3CF3MC83600/C95800
StemF6aF304F6aF304F316F304LF316LC83600/C95800
Seat/Seat Ring13%CrSS30413%CrSS304SS316SS304LSS316LC83600/C95800
PackingGraphite/PTFE
GasketSS304+Graphite/SS304+Graphite
Bolts/NutsB7/2HL7/4B16/4B8/8B8M/8MB8/8B8M/8MB8M/8M
Suitable MediumW.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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