For XW Pumps, up to 3650PSI
The Gymatic 3B XW series of unloaders (built for the XW Series pumps, Max PSI 3,650) features a bolt on design with internal by-pass system. Adjustable pressure releases pressure in pump head when in by-pass, protecting from over pressurization. Eliminates by-pass hose and fittings. Built-in chemical injector available (see specifications of individual models for details). The molded plastic adjusting knob is designed for user comfort. Body constructed of brass with a stainless steel plunger and spring, by-pass is brass.