Dual Valves Australasia presents the Dual double non-return valves (DDNRV) designed to operate in parallel on the discharge side of two pumps.
Dual double non-return valves are particularly suited for mill cyclone feed pump applications and all slurry applications requiring trouble-free pump changeover.
Both pumps can run simultaneously or independently. When one pump is switched off, the ball will automatically drop back into the seat, preventing the back flow to the second pump.
Key features of Dual double non-return valves:
- Replaceable seats
- Different mounting brackets can be fitted to suit the installation
- Size: 65mm to 750mm (Different sizes available on request)
- Operating pressure: 10, 16 and 25 bar