Bermad WW-743 Large Metal Hydraulic Booster Pump Control/Pressure Sustaining Valve

The Bermad WW-743 is a hydraulically operated, diaphragm-actuated control valve designed to provide both booster pump control and pressure sustaining in high-demand water networks. Operating as an active check valve, it opens or closes in response to electric signals and maintains a preset minimum discharge pressure during operation.

When a pump starts or stops, the WW-743 isolates the system to prevent surges, protect the pump from overload or cavitation, and ensure controlled pipeline filling. During normal operation, it delivers drip-tight sealing and smooth non-slam transitions, maintaining network integrity and pump longevity.

APPLICATIONS

• Solitary single-speed pump systems
• Pump battery systems (add/switch)
• Variable speed pump installations
• Cavitation and overload protection
• Controlled system pressurization

FEATURES

• Active Check Valve Logic
  – Prevents surges during pump start/stop
  – Isolates pump from system during transitions
• Pressure Sustaining Function
  – Maintains minimum discharge pressure under varying flow
• Solenoid Controlled
  – Responsive to electric signals for flexible operation
  – Compatible with wide voltage and pressure ranges
• Spring-Loaded Check Feature
  – Provides fail-safe mechanical closure
  – Replaces the need for additional inline check valves
• Line Pressure Driven
  – Independent operation, no external power required for actuation
• Double Chamber Design
  – Ensures moderated valve response
  – Reduces hydraulic shock and wear
• In-line Serviceable
  – Simplifies maintenance and reduces downtime
• Protected Diaphragm & Balanced Seal Disk
  – Delivers high flow capacity with reliable sealing