Roll Check Valves
The Series 590 Roll check valve is designed to prevent reverse flow of gas or air in a pipeline and provides a positive seal with very low differential pressure.
Non-return check valves are a means of preventing a reverse flow and are to be installed gas line where air is mixed with fuel gas prior to combustion, as with gas/air brazing torches, jewelry torches and many types of industrial burners. Non-return check valves should also be fitted on the outlet side of the gas meter to give general protection, and smaller sizes should be fitted on the inlet pipe to any appliance where gas and air are mixed.
- Positive Seal
- Higher Flows
- Higher Pressure Range
- Integral Inlet/Outlet Pressure Taps
- Inlet Straining Screen can help protect equipment
Easy installation - Compact design for horizontal installation only, valve is supplied complete with inlet strainer, inlet and outlet pressure test points as standard.
Easy Maintenance - Lubricationless design is fully serviceable while installed.
Top Performance - Valve has high thoughput capacities ang gives positive seal under all conditions of reverse pressure up to 100 PSIG, and minimal forward pressure loss up to a maximum working pressure of 100 PSIG.
Size Range Screwed: 2"
Flanged: 80mm, 100mm and 150mm
Maximum Inlet Pressure and
Maximum Reverse Pressure 100 PSIG on all sizes
Max Operating Temperature 140°F / 60°C
Flow Medium Natural Gas and non-aggressive gases