The solenoid valve is a two-valve

It will electromagnetic actuator and valve body into one. Whether stuffing can be divided into the stuffing and stuffing solenoid valve; pilot and direct two categories according to the method of operation; by the structure common type, waterproof, explosion-proof and water proof type; according to normal when the state of the normally closed type (loss of power off) and normally open (de-energized to open); path is divided into two-way,stainless steel pneumatic cylinders, three-way, four-way, five-way, etc.; solenoid valve drive, single solenoid, double solenoid, spring return and return positioning. Solenoid valves are often used as a control system of the air passage switching valve, for interlocking control system and the sequence control system. The solenoid valve is generally not as shut-off valve, a small number of small-caliber instrument air applications is also used as a shut-off valve.pneumatic fitting