The BERMAD model 400Y-4DC is an elastomeric hydraulic, line pressure operated, deluge valve, designed specifically for advanced fire protection systems and the latest industry standards. The 400Y-4DC is activated by a pneumatic relay valve. Opening and closing of the valve can be controlled remotely. An integrated pressure reducing pilot valve ensures a stable and precise pre-set downstream water pressure. The 400Y-4DC is suitable for open-nozzle systems with a high pressure water supply and/or relatively low flow. The pneumatic control makes the 400Y-4DC suitable for freezing environments and /or corrosive water supplies.

Safety and reliability

• Time-proven, simple, fail-safe actuation 
• Single-piece, rugged, elastomeric diaphragm seal - VRSD technology 
• Obstacle-free, uninterrupted flow path 
• No mechanical moving parts 
• Shuts off on remote command 
• Ensures precise, stable downstream water pressure 
• Valve position limit switches

Designed for fire protection

• Face-to-face length standardized to ISO 5752, EN 558-1 
• Suitable for corrosive fluids and freezing temperatures: pneumatic relay valve 
• Designed to meet the requirements of the industry standards

Quick and easy maintenance

• In-line serviceable 
• Quick cover removal without detaching control trim* 
• Swivel mounted drain valves* 

* not including 1½” & 2” valves

Typical Applications

• Fusible plug loops 
• Automatic water spray systems 
• Foam applications 
• Corrosive water supplies 
• High pressure water supply 
• Freezing conditions

• Very high flow efficiency
• Straight-through-flow Y-type body
• Approved for PN25 (365 psi)