PressurePressure Reducing Valve | Reducing Valve | Model 720-20Model 720-20

Pressure Reducing Valve Model 720-20

The Model 720-20 Pressure Reducing Valve with Check Feature 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. The check feature prevents reverse flow through the valve.

  • Line pressure driven – Independent operation
  • Check feature
    • Replacing line sized check valve
    • Cost effective pumping
    • One-way zonal back-up
  • In-line serviceable – Easy maintenance
  • Double chamber design
    • Moderated valve reaction
    • Protected diaphragm
  • Flexible design – Easy addition of features
  • Variety of accessories – Perfect mission matching
  • “Y” or angle, wide body – Minimized pressure loss
  • Semi-straight flow – Non-turbulent flow
  • Stainless Steel raised seat – Cavitation damage resistant
  • Obstacle free, full bore – Uncompromising reliability
  • V-Port Throttling Plug – Low flow stability

Typical Application

Cost Effective Pumping

One zone of a distribution network has two supply sources. Setting the Model 720-20 Pressure Reducing Valve with Check Feature slightly higher than pump pressure, ensures pumping only when pressure provided from the network is insufficient. The Model 720-20:

  • Protects the zone from excessive network supply pressure
  • Saves energy and lowers costs by off-hours pumping


English Spare Parts - Waterworks
English 700 ES EN Series Ordering Guide
English 700 ES Engineering
English 700 Series Engineering
English WW Municipal 720-20 Data Sheet