Double Interlock Pre-Action Valve Electric-Pneumatic Release System FP 400Y – 7DM
The BERMAD model 400Y-7DM utilizes an elastomeric deluge valve, designed specifically for advanced fire protection systems and the latest industry standards. Electric-Pneumatic Double interlock systems include automatic sprinklers attached to a supervised dry sprinkler piping system and a supplementary electric detection system. The 400Y-7DM admits water into the sprinkler system piping only when both the electric detection device and the pneumatic supervised systems are simultaneously activated. An anti-flooding feature is provided by using an in-line check valve, which creates an intermediate vented chamber using a Normally Open drip check. As an option the 400Y-7DM features a quarter turn valve position indicator available with limit switches for remote valve position monitoring.
- 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
-Latches open: remains open until reset locally
-Valve position limit switches (optional)
-Local valve position indicator beacon (optional)
- High performance
-Very high flow efficiency
-Straight through flow Y- type body
-Approved for PN20 / 300 psi
- Quick and easy maintenance
-In-line serviceable
-Quick cover removal without detaching control trim *
-Swivel mounted drain valves *
* not including 2” valves
Typical Applications
- Water sensitive material storage
- Freezing conditions
- Computer and electronics rooms
- Libraries / museums & archives
System Installation
A typical installation of the BERMAD model 400Y-7DM, features automatic actuation via a URV pilot control valve opening in response to a fall in pneumatic pressure of the dry sprinkler pipeline and the simultaneous opening of a 2-Way solenoid triggered electrically by a signal from a fire & gas control system.
An inline check valve and drip check valve create an intermediate vented chamber to ensure against flooding when the valve is closed.
When fitted with a limit switch the valve can send a feedback signal to a remote valve status monitoring system.
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