Multi‐function valves combine the functions of pressure relief valves and pressure loading valves. In addition, they allow deaeration of the pump and emptying of the discharge line for maintenance. A multi‐function valve is mounted directly on the pump discharge side (5/8″ fitting only). The top connection is for the discharge line, the side connection leads the relief liquid back into the tank. Loading pressure adjustable from 1 to 4 bar, factory set to 3 bar. Relief pressure adjustable from 7 to 16 bar, factory set at 10 bar or 16 bar. Maximum system pressure 16 bar. Hose connection set: 4/6 mm, 6/9 mm, 6/12 mm and 9/12 mm.