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

Features

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.

Technical Data

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