Watson McDaniel series R relief and back pressure regulating valve. 1/2" R-12-N-4, R-12-N-3, R-12-N-2, R-12-N-1. 3/4" R-13-N-4, R13-N-3, R-13-N-2, R-13-N-2, R-13-N-1. 1" R-14-N-4, R-14-N-3, R-14-N-2, R-14-N-1. 1-1/4" R-15-N-4, R-15-N-3, R-15-N-2, R-15-N-1. 1-1/2" R-16-N-4, R-16-N-3, R-16-N-2, R-16-N-1. 2" R-17-N-3, R-17-N-2, R-17-N-1. 3" R-19-N-3, R-19-N-2, R-19-N-1.

Watson McDaniel R Series Relief & Back Pressure Valve

$175.00
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The Watson McDaniel series R relief & back pressure valve automatically maintains desired maximum pressure in a vessel or on a system by relieving excess pressure into a lower pressure system or to atmosphere. Typical applications include pump bypass control valves, or for protection against intermittent overpressure conditions on liquid systems. Usable on a variety of liquid systems, not usable on steam systems.

Available in sizes 3/4", 1", 1-1/4", 1-1/2", 2", and 3"
Maximum inlet pressure of 300 PSIG at 180 F
Heavy duty bronze body with interchangeable springs, sold separately
Stainless steel disc on 3/4" through 1-1/2", bronze disc on 2" and 3"
Watson McDaniel R Series Relief & Back Pressure Relief Valve Specification Sheet

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