Name: Bermad 710-20 Solenoid Controlled Valve | Dowdens Pumping & Water Treatment
SKU: 710-20
Availability: OutOfStock

Description

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.