Anti Cavitation

WW-720 – Sigma EN ES Pressure Reducing Valve

The Model WW-720 Sigma EN ES Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure.

Valves can be fitted with multiple options such as V ports, single or double cavitation cages for superior cavitation protection & regulation and control.

View all data sheets & engineering data
WaterMark Australian Standard WSAA AWQC WaterMark, AS5081 approved


  • Fully approved AS5081 / AS4020 & Appraised to WSAA
  • Double chambered design for ultimate flexibility in safety and design
  • Y pattern extremely high flow capacity and cavitation resistance
  • Multiple throttling plugs for low flow and cavitation free operation
  • Quiet operation and fully in line serviceable

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