Bermad 835-M Large Metal Hydraulic High Pressure Surge Anticipating Control Valve

The Bermad 835-M is a high-pressure surge anticipating valve designed to protect water distribution and pumping systems from destructive pressure surges caused by sudden pump stoppages. This off-line, hydraulically operated, piston-actuated valve detects the rapid pressure drop that precedes a returning high-pressure wave and opens in anticipation—dissipating surge energy before it impacts the system.

Engineered for high-demand, high-pressure applications, the 835-M responds instantly to pressure transients and then closes drip-tight at a controlled rate, preventing secondary surges. It also functions as a pressure relief valve to protect the system from excessive pressure buildup.

Whether installed in municipal networks, deep well systems, or aging infrastructure in remote locations, the Bermad 835-M offers proven surge protection, extending the life of pipelines, pumps, and valves.

APPLICATIONS

• Pumping stations (booster, deep well, single/variable speed)
• Municipal water distribution systems
• HVAC systems and high-rise building water systems
• Sewage and wastewater networks
• Irrigation systems in remote or hard-to-maintain sites
• Aging or surge-sensitive infrastructure

FEATURES

• Surge Anticipation Function
  – Opens on pressure drop to preemptively absorb returning surges
• Piston-Actuated High Pressure Design
  – Ideal for extreme operating pressures and fast transients
• Dual Function
  – Surge prevention and over-pressure relief in one valve
• Drip-Tight Closure with Smooth Shutoff
  – Prevents additional surge from valve closure
• Line Pressure Sensing
  – Hydraulic control for accurate response, no external power required
• Robust Construction
  – Built for long-term durability in high-stress environments