Southwest Irrigation, LLC
Southwest Irrigation is the leading supplier for Heap Leach Mining Systems and Agricultural Irrigation Systems in the southwest.

Booster Pump Control Valve

The Model 740Q Booster Pump Control Valve is a double chambered, hydraulically operated, diaphragm actuated active check valve that opens fully or shuts off in response to electric signals. It isolates the pump from the system during pump starting and stopping, to prevent pipeline surges.

Features and Benefits

Line pressure driven

  • Independent operation
  • No motor required
  • Long term drip tight sealing

Solenoid controlled

  • Low cost wiring
  • Wide ranges of pressures and voltages
  • Normally Open or Normally Closed

Check feature (spring loaded type)

  • Replaces line sized check valve
  • Fail-safe mechanical closure

In-line serviceable – Easy maintenance
Double chamber

  • Full powered opening (option “B”) and closing
  • Non-slam opening and closing characteristic
  • Protected diaphragm

Balanced seal disk – High flow capacity
Flexible design – Easy addition of hydraulic features
Typical Applications

In this system, a pump battery supplies the main line through a manifold.
The Model 740Q, installed downstream from each pump:

Prevents surge generation rather than minimizing surge damage. Provides surge free starting and stopping of supplementary pumps. Allows surge free switching between “on-duty” pumps. Delays reaction of variable speed primary pump to single speed supplementary pump going on line or off line.



  Office 520-384-9223
401 E Maley
Willcox, AZ 85643
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