The
Model 740 Booster-Pump Control Valve is a 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.
- Isolation
of pump start and stop effects from system, for:
- Solitary
single speed pumps
- Battery
of single speed pumps (add & switch)
- Battery
of variable speed pumps (add)
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”) & closing
- Non-slam
opening & closing characteristic
- Protected
diaphragm
- Balanced
seal disk – high flow capacity
- Flexible
design – easy addition of hydraulic features
