Bermad WW-730 Large Metal Hydraulic Pressure Relief/Sustaining Valve (AS5081/WaterMark)

The Bermad WW-730 is a hydraulically operated, diaphragm-actuated control valve designed to perform either pressure relief or pressure sustaining functions, depending on system installation. In pressure sustaining applications, it maintains a minimum upstream (back) pressure, regardless of downstream pressure fluctuations or flow variation. As a pressure relief valve, it protects the system by discharging excess line pressure when it exceeds the pre-set limit.

The valve is engineered with a balanced seal disc for high relief flow capacity and rapid, stable operation. Its double-chamber design ensures moderated valve response, while a full-bore, Y- or angle-body configuration minimizes pressure loss and turbulence.

The WW-730 features a stainless steel raised seat for resistance to cavitation and long-term durability under demanding conditions. It’s modular and serviceable in-line, offering both performance and maintenance efficiency.

APPLICATIONS

• Pressure Zone Prioritization
• Controlled Pipeline Fill-Up
• Pipeline Emptying Prevention
• Pump Overload and Cavitation Protection
• Minimum Flow Protection for Pumps
• Relief for Excess Line Pressure

FEATURES

• Dual Function Capability
  – Performs as a pressure relief or pressure sustaining valve
• Line Pressure Driven
  – No external power required
• Balanced Seal Disc
  – Ensures high flow relief and stable modulation
• Double-Chamber Design
  – Provides moderated valve reaction and control
• Stainless Steel Raised Seat
  – Resists cavitation and extends service life
• Y or Angle Body Configurations
  – Optimized for high flow with minimal pressure loss
• Full-Bore, Obstacle-Free Flow Path
  – Supports uncompromised reliability and non-turbulent flow
• V-Port Throttling Plug
  – Stabilizes low-flow performance
• In-line Serviceable
  – Reduces downtime and simplifies maintenance
• Modular, Flexible Design
  – Compatible with a wide range of optional control accessories