Watson McDaniel series 10691 tight shut-off relief and back pressure regulating valve. 1/2" 10691-12-N-3-E, 10691-12-N-2-E, 10691-12-N-1-E, 10691-12-N-1-T, 10691-12-N-2-T, 10691-12-N-1-T, 10691-12-N-3-V, 10691-12-N-2-V, 10691-12-N-1-V. 3/4" 10691-13-N-3-E, 10691-13-N-2-E, 10691-13-N-1-E, 10691-13-N-3-T, 10691-13-N-2-T, 10691-13-N-1-T, 10691-13-N-3-V, 10691-13-N-2-V, 10691-13-N-1-V. 1" 10691-14-N-3-E, 10691-14-N-2-E, 10691-14-N-1-E.

Watson McDaniel 10691 Series Relief & Back Pressure Valve

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The Watson McDaniel series 10691 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. Suitable for systems where bubble-tight shutoff requirements must be met.

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
EPDM disc for tight shut-off, viton or teflon disc available
Watson McDaniel 10691 Series Relief & Back Pressure Relief Valve Specification Sheet

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