Firefighting Equipment
Pre-action Deluge Alarm System (ZSFY Series)
ZSFY Pre-action Valve combines the advantages of both wet and dry sprinkler systems. The piping remains air-filled under normal status to avoid accidental water leaks, and is flooded rapidly with water upon fire detection.
Key Features
- Dual-signal trigger: requires both fire alarm and pressure switch signals to prevent accidental discharge
- Perfect for highly critical rooms: libraries, archives, computer labs, and museums
- Integrated pressure-maintaining and air-feeding devices
- Corrosion resistant brass and stainless steel accessories
Technical Specifications
- Size Range
- DN80 - DN250
- Nominal Pressure
- 1.6 MPa
- System Side Air Pressure
- 0.03 - 0.05 MPa
- Trigger Mode
- Pneumatic / Electric / Manual
- Body Material
- Ductile Iron QT450