PA VB10/2 soft start pressure regulating unloader valve with discharge control pressure with very low readings. At gun-lance closure, the water flow is bypassed at reduced pressure. Sturdy steel and brass construction. Bypass control brought into effect by very low pressure readings. Therefore delivery line at reduced pressure at gun closure. Quick start at gun opening assures gradual pressure reset, essential for use on endothermic engines. Specially designed check valve prevents jamming and vibrations even in presence of sand and scale. Safety valve built in the delivery side. Working typology protected by registered patent. 220 Bar rated pressure. 30 Lpm max flow. 90°C rated water temperature. Trapped pressure valve - Soft start. Panel mount. Brass body. Stainless steel piston. Plastic regulator knob. 3/8"BSPF inlet. 3/8"BSPF outlet. 3/8"BSPF bypass.