The Suttner ST-250 unloader valve is particularly suitable for use in professional high-pressure units and vehicle washing. It can be operated with hot water up to 80 ° C. It is equipped with a robust ball check valve and offers connection options for a manometer and 2 bypasses. Inlet: 3/8" Female. Outlet 3/8" Female. Max Press 250 Bar. Max Flow 35 L/Min.