Double Interlock Pre-action System Electric-Pneumatic Release with Pressure Control
The BERMAD model 400Y-7DC utilizes an elastomeric deluge valve with unique Vulcanized Radial Seal Disk (VRSD) technology, 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-7DC admits water into the sprinkler system piping only when both the electric detection device and the pneumatic supervised systems are simultaneously activated.
This valve includes an integrated pressure control pilot ensuring a precise and stable pre-set maximum downstream water pressure.
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.
Need more information? Contact us here
-
Safety and reliability
- Time proven, simple design with a fail safe actuation
- Single piece, rugged elastomeric diaphragm seal - VRSD technology
- Obstacle-free, uninterrupted flow path
- Controls nozzle water pressure-flow - preventing overflow and flooding
- No mechanical moving parts
- Valve position limit switches (optional)
-
High performance
- Very high flow efficiency
- Straight through Y type body
- Approved for PN20 - 300 psi
-
Quick and easy maintenance
- In-line serviceable
- Fast and easy cover removal
- Swivel mounted drain valves (for valves 3" and larger)
Typical Applications
- Flow control against flooding, where drainage is restricted
- Water sensitive material storage
- Freezing Environments
- Computer and electronics rooms
- Libraries museums and archives
Additional Features
- PS : Pressure Switch
- W : Water Motor Alarm
- AMD : Air Maintenance Device