Solenoid Valve & Sensor

Product Details

Solenoid valve will control the supply of air to inlet or valve in load/unload operation of reciprocating. Different types of solenoid are available in market. In Compressor Technology Normally open (N/O) or Normally Close (N/C) type solenoid valve are used to perform loading/unloading action.

Solenoid valve has three ports, these are

(1) Inlet

(2) Outlet

(3) Exhaust

Use of each port is as below

01) Inlet Port

Impulse air supply through tube of Dia. not less than 12 mm from the air receiver through control filter connected to inlet port of solenoid valve

02) Outlet Port

This port is also known as port. This is connected through, at least 6 mm Dia. Copper or Nylon tube to inlet (Suction) valve of the compressor.

03) Exhaust Port

This port is for the escape of trapped air in the line. It should always keep open to the atmosphere.

Details of Normal Open & Normal Close Solenoid Valve.

A) Normal Open (N/O)

This type solenoid valve allows air supply to flow from inlet port to outlet (cylinder ) port, in de-energized or normal condition. When energised, due to change over in pressure contact stops the air supply. This type of solenoid valve are used for load/unload operation of air compressor.

B) Normal Close (N/C)

This type of solenoid valve does not allow air supply from inlet port to outlet port in de-energized or normal condition. When energized due to change over in contact of pressure switch allows air supply to flow through cylinder port. This type of solenoid valve is used in 5-step control panel for increasing and decreasing the area of clearance pocket during unloading/loading operation of Air Compressor.

 


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