Non-Return/Check Valve
Swing Type – Grooved
Non-Return Valves or Check Valves are valves that normally allow fluid to flow through it in only one direction. BRISTOL Check Valves are swing type with a tilted clapper. BRISTOL Check Valves clapper design produces quick, non-slam closure before flow reversal can occur meeting the FM requirements for an anti-water hammer valve rating.
APPLICATION:
Use in one-way flow pipeline to prevent the water from back flow.
Specification
- Approvals: UL and FM
- Grooved Standard: ANSI / AWWA C606
- Flange Standard: ASME/ ANSI B16.1 Class 125 or ASME/ ANSI B16.42 Class 150 or BS EN1092-2 PN16
- Sizes: 2-1/2”, 3”, 4”, 5”, 8”, 10”, 12”
- Nominal Pressure: 350 PSI
- Max. Working Pressure: 350 PSI
- Max. Testing Pressure: 700 PSI
- Max. Working Temp: 80°C / 176°F
Materials
- Body: Ductile Iron ASTM A536 65-45-12
- Clapper: Stainless Steel 304 ASTM A276
- Seat Ring: C95400 ASTM A148
- Coating Details: Epoxy coated interior and exterior by Electrostatic Spray
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