Lift-type check valve KM 9902 (Z 35) is unidirectional valve designed to prevent from reverse flow of the service fluid. The direction of the fluid flow is marked with an arrow on the valve's body from the bottom to the top, i. e. under the disc. In case the fluid starts flowing back, the disc closes the check valve automatically. The pumped fluid is then discharged through the branch piece (bypass)to the discharge pipe which mouths into the pump tank. Check valve is not designed as conventional isolating valve. For temperatures from −60 °C to +550 °C.
Suitable for water, steam, gas, oil, crude oil, and other liquids and gases.
Approved for fluids in groups 1 (hazardous) and 2 according to 2014/68/EU.