The DDNRV valve operates on the discharge side of two pumps in parallel. Both pumps can run simultaneously or independently. When one pump is switched off, the ball will automatically drop back into the seat -stopping the back flow to the second pump.
SIZE (mm): 65 to 750. Different sizes available on request
OPERATING PRESSURE: 10, 16 and 25 bar
Different mounting brackets can be fitted to suit the installation
Particularly suited for mill cyclone feed pump applications.
All slurry applications requiring trouble free pump changeover