Pre-Action Valve - Double Interlock - Electro-Pneumatically Controlled - Manual (Local) Reset
Armaş “77PA-EL-PN-MR” Electro-Pneumatically Controlled, Double Interlock Pre-Action Valve is designed for fire protection systems. The Pre-Action Valve is actuated by line pressure. It supplies water into the sprinkler piping only when both an electrical detection device (sensor) is activated and a sprinkler head operates. After automatic operation, the valve must be manually reset. An emergency release valve is provided as standard.