Bermad 710-20 Solenoid Controlled Valve



710-20 – Solenoid Controlled Valve with Check Feature AS5081

The Model 710-20 Solenoid Controlled Valve with Check Feature is a hydraulically operated, diaphragm actuated control valve that either opens fully or shuts off in response to electric signals. The check feature prevents reverse flow through the valve.

  • Network management optimizing
  • Pressure zone isolating
  • Zonal pressure backup
  • Zonal return flow prevention
  • Automatic refreshing of reservoirs
  • Burst excess flow shut-off
  • Switching between "on-duty" valves


  • Line pressure driven
    • Independent operation
    • No motor required
    • Long term drip tight sealing
  • Solenoid Controlled
    • Low cost wiring
    • Wide ranges of pressures and voltages
    • Low power consumption
    • Normally Open, Normally Closed or last position
  • In-line serviceable - Easy maintenance
  • Double chamber
    • Non-slam opening and closing characteristics
    • Protected diaphragm
  • Major Additional Features
    • Relief override - 710 - 20 - 3Q
    • Opening & closing speed control - 710 - 20 - 03
    • Closing surge prevention - 710 - 20 - 49


The Model 710 - 20 is a solenoid controlled valve equipped with a 3-way solenoid pilot and two check valves. The normally open solenoid applies pressure to the upper chamber, harnessing valve differential pressure to power the diaphragm-actuator, closing the main valve. Energizing the solenoid vents control chamber pressure causing the main valve to open fully. The lower control chamber is open to atmosphere.

Should downstream pressure exceed upstream pressure while the valve is open, check valve quickly admits air into the feature In cases where pipeline water is contaminated (corrosive, debris laden) external control fluid is often used. For 10" and larger valves, an accelerator quickens valve response.