ZSYFY Pre-Action Device

The ZSYFY type pre-action system combines fire detection and alarm with an automatic sprinkler system, providing dual protection for the protected object. When there is no fire, the system’s side piping is pressurized, giving it the characteristics of a dry system, which can meet the needs of automatic sprinkler fire extinguishing under high temperature and severe cold conditions.

▌Structural Characteristics and Uses

The ZSYFY pre-action system combines fire detection, alarm, and automatic sprinkler systems to provide dual protection for the protected object. When there is no fire, the system has a dry system characteristic due to the pressurized side piping, which can meet the needs of automatic sprinkler fire extinguishing under high temperature and severe cold conditions.

▌Features

Locks the open position and only closes during local reset. The control components are pre-assembled at the factory. Online maintenance minimizes system downtime, with an online check valve forming an intermediate cavity to prevent water loss. The integrated molded elastic diaphragm assembly is the only moving part and requires no maintenance.

▌Main Technical Parameters

▌Typical Applications of Pre-Action Valves