Personnel shelter airtight valves are suitable for nominal pressure PN≤0.05MPa, operating temperature -30℃ to +40℃, relative humidity...

30-90% degree, acting as a unidirectional closed circuit mechanism on piping with air as the medium. This valve is mainly composed of the valve body,

Valves and transmission devices, etc., are composed. The opening and closing is achieved by the transmission device, through the valve rod and a transmission lever, to tension and relax the spring.

Utilizing the locking mechanism, the valve achieves the purpose of opening and closing. This valve is a unidirectional sealed valve and is not suitable for media.

Not suitable for use in a reverse flow pipeline. Electrically sealed valves consist of a motor reducer, electrical

The assembly consists of components such as actuator control and stroke control, featuring the capability to independently lock in both electric and manual modes without cutting.

In the event of a sudden power outage while operating electrically, the handle can be used directly for operation; when operating manually, power can be suddenly applied.

In cases like this, safety is also guaranteed.