Bermad WW-772-U Large Metal Hydraulic Pressure Reducing Valve with Flow Control

The Bermad WW-772-U is a high-performance, large-diameter hydraulic control valve engineered to simultaneously regulate maximum flow rate and maintain a constant downstream pressure, regardless of upstream pressure fluctuations or varying demand. It combines two independent hydraulic functions—flow limitation and pressure reduction—into a single, robust unit designed for critical waterworks and industrial applications.

Featuring a double-chamber diaphragm-actuated design, the 772-U delivers moderated valve response, enhanced stability at low flows (via a V-port throttling plug), and long-term resistance to cavitation through its stainless steel raised seat. The upstream-mounted hydraulic flow sensor ensures precise flow limitation without electronic components, moving parts, or flow-straightening sections—simplifying installation and boosting reliability.

Ideal for systems requiring flow balancing, controlled pipeline filling, groundwater drawdown compensation, or pump cavitation protection, the WW-772-U offers uncompromising performance in demanding environments.

APPLICATIONS

• Flow limitation in distribution mains
• Pressure control in high head zones
• Controlled system fill-up to prevent surge
• Pump cavitation and over-pressure protection
• Parallel valve balancing in large networks
• Drawdown management in groundwater systems
  

FEATURES

• Dual Hydraulic Functionality:
  – Maintains preset max flow AND constant downstream pressure
  – Operates independently of electricity or electronics
• Double-Chamber Design:
  – Moderated response and diaphragm protection
  – In-line serviceable for simplified maintenance
• Integrated Hydraulic Flow Sensor:
  – Installed upstream, requires no power or moving parts
  – No need for flow-straightening pipe sections
• Heavy-Duty Construction:
  – Cavitation-resistant stainless steel seat
  – Y-pattern or angle body minimizes pressure loss
• Full Bore, Obstacle-Free Flow Path:
  – Ensures high capacity and long-term operational reliability
• V-Port Throttling Plug:
  – Enhances low flow stability
• Flexible, Modular Design:
  – Easily adapted with optional pilots and accessories to meet specific control requirements