Optional check valve DN20

DN 20 check valve to be installed into the body of the mixing valve on the return way. It prevents back flow rate of energy in presence of complex installations (e.g. different circulating pumps and/or several mixing valves on the zone manifold).
Minimum opening pressure: 20 mbar. Kvs 7.2. Max Temperature: 95°C.

Code: CRKZ20TOT