The electro-pneumatic actuation deluge alarm valves are control valves that are used at sensitive fire preotection applications. Pre-action deluge valves work triggering with both electric signal and pneumatic signal.
Pre-action type deluge alarm valve works hydro-electro-pneumatically in the system.
A single signal in the system which is electric or pneumatic doesn’t trigger the valve.
The pneumatic valve and solenoid valve on the deluge valve work synchronized.
Because the pneumatic pilot valve is latch type, the deluge valve sets itself up automatically.
The solenoid valve used in the system is 24 Volt DC. But, the solenoid valve’s voltage value can be changed according to the control panel at the application.
The equipments like mechanical alarm gong, pressure sensors can be mounted on the deluge valve’s body.
With the alarm test valve or the other sensors mounted on the valve’s body can be tested.
STAND-BY MODE
WHEN THE PNEUMATIC PRESSURE IN THE SYSTEM IS APPLIED TO THE DELUGE VALVE’S
PNEUMATIC PILOT VALVE, THE MAIN VALVE CLOSES ITSELF UP IMPERMEABLE.
OPENING UP MODE
WITH REDUCING THE PNEUMATIC PRESSURE IN THE SYSTEM AND THE CONTROL PANEL’S SENDING AN ELECTRICAL SIGNAL TO THE SOLENOID VALVE, THE DELUGE VALVE OPENS ITSELF UP AND CONDUCTS THE WATER TO THE SYSTEM.
MANUALLY OPENING UP MODE
WHEN THE EMERGENCY RELEASE VALVE MOUNTED ON THE DELUGE VALVE’S TRIM SET, IS TAKEN TO THE OPENED UP POSITION THE DELUGE VALVE OPENS ITSELF UP.