ZSFP25 Automatic Air Vent

1. ZSFP25 Automatic Air Release Valve Description

The automatic air release valve is specifically designed for fire protection systems such as wet, dry/wet alternate, pre-action, recycling, foam spray, and foam storage tank systems in automatic sprinkler systems. Installed at the top of the system, it prevents air blockage and air trapping during system filling and venting. Once the system is filled with water, it automatically closes the air outlet; during system maintenance and drainage, it automatically opens to intake air, preventing pipeline network deformation and damage due to negative pressure.

2. Main Technical Parameters of ZSFP25 Automatic Air Release Valve

(1) Working pressure range: 0.05MPa-1.2MPa

(2) Inlet thread: Rc1″

(3) Air outlet thread: R21/2″

(4) Installation method: Vertical installation, with the air outlet preferably connected to the drainage pipeline

(5) Seal test pressure: 2.4 MPa water pressure, lasting 5 minutes