Bermad WW-790-M Large Metal Hydraulic Excessive Flow Burst Control Safety/Pressure Reducing Valve

The Bermad WW-790-M is a heavy-duty, hydraulically operated, diaphragm-actuated valve engineered to combine pressure reduction and burst flow protection in a single, high-performance unit. It ensures safe and consistent downstream pressure regulation under normal operating conditions, while delivering immediate shutoff in response to burst events or excessive flow—preventing catastrophic system failure.

Ideal for critical infrastructure and high-capacity water networks, the valve operates without the need for electronics or external power, making it a dependable solution for remote or rugged installations. The fail-safe mechanism locks the valve in the closed position after a burst event, requiring manual reset to resume operation.

APPLICATIONS

• Urban and rural water distribution networks
• Burst protection in long pipeline runs
• Pressure management zones in municipal supply systems
• Safety shutoff in high-value or remote installations
• Critical infrastructure protection in industrial settings

FEATURES

• Dual Function Control
  – Pressure reducing and burst flow shutoff in one valve
  – Prevents over-pressurisation and pipe rupture
• Line Pressure Driven Operation
  – Independent of external power or electronics
  – No moving electronic components—ultra-reliable in any environment
• Sensitive Hydraulic Flow Pilot
  – Accurate burst detection with tight setting window
• Manual Reset Required After Burst Event
  – Adds a layer of system safety and operator oversight
• Double Chamber Valve Design
  – Enables smooth valve reaction and drip-tight sealing
• Y-Pattern or Angle Pattern Body
  – High flow capacity and low pressure loss
• Protected Diaphragm Assembly
  – Ensures long-term performance and resistance to cavitation
• In-Line Serviceable
  – Easy maintenance and inspection without removing from pipeline