The R-K MRB series pressure relief valve is a 2-port valve designed to relieve excess pressure that may occur in the line or system even with the back pressure or head pressure on the downstream side. Adjust the threaded stem to obtain the selected line or tank relief pressure. An outlet (tee) may be required on the inlet side of the valve. The valve starts to open as line pressure apporaches set pressure until fully open. The valve can be set to relieve excess pressure between 10-80 P.S.I The 1/4" valve is also available with a relief range of 60-125 P.S.I. It's designed so there is no metal contact with the fluid and top entry makes in-line maintenance easy. Can be factory pre-set upon request. Controlled pressure setting up to 100 P.S.I. available on request."

The R-K AOV series air valve features a compact thermoplastic valve available in six models to handle a multitude of piping system functions. This patented valve is designed so there is no metal contact with the fluid, and can be operated in any position Air actuated at 40 to 80 PSI. Direct acting full flow with top entry for easy maintenance and minimum water hammer. Suitable for most harsh chemicals, pollution control, wet processing stations, plating equipment, chemical processing and water treatment applications.

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