The BERMAD model 400Y-4DC-H is an elastomeric, hydraulic, line pressure operated deluge valve, designed specifically for advanced fire protection systems and the latest industry standards.
The 400Y-4DC-H is activated by a pneumatic relay valve which latches the main valve open until locally reset.
An integrated pressure reducing pilot valve ensures a stable and precise pre-set downstream water pressure.
An optional valve position indicator can include a limit switch suitable for Fire & Gas monitoring systems.
The 400Y-4DC-H is ideal for open-nozzle systems with a high pressure water supply and/or relatively low flow.
The pneumatic control makes the 400Y-4DC-H suitable for freezing environments and 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
-Ensures precise, stable downstream water pressure
-Valve position limit switches (optional)
- High performance
-Very high flow efficiency
-Straight-through-flow Y-type body
-Approved for PN25 (365 psi)
- 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
-Fast and easy cover removal
-Swivel mounted drain valves*
* not including 1½” & 2” valves
- Fusible plug loops
- Automatic water spray systems
- Foam applications
- Corrosive water supplies
- High pressure water supply
- Freezing conditions
A typical installation of the BERMAD model 400Y-4DC-H features automatic actuation via a pneumatic universal relay valve, triggered by a fusible plug loop.
Once open, the relay pilot URV-M will latch mechanically keeping the 400Y 4DC-H open, until locally reset.
A pressure reducing pilot valve within the trim controls the main valve to ensure a precise, pre-set, stable downstream water pressure.
When fitted with a limit switch the valve can send a feedback signal to a remote valve position monitoring system.