برق. قدرت. کنترل. الکترونیک. مخابرات. تاسیسات.

دایره المعارف تاسیسات برق (اطلاعات عمومی برق)

What is a Solenoid Valve and How Solenoid Valves Work

A solenoid valve is an electro mechanically operated valve. These valves are controlled by an electric current through a solenoid in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Multiple solenoid valves can be placed together on a manifold.

Solenoid valves are the most frequently used to control fluids and Gases. Their tasks are to shut off, divert, release, dose or mix fluids and gases. They are found in many vacuum, cryogenic, water, fluid, Steam, gas, oil or air and high pressure applications and controlling other pneumatic valves or coaxial valves or Angle Seat Piston Valves. Solenoids offer fast and safe switching, high reliability, long service life, good medium compatibility of the Brass Stainless and Plastic materials used, low control power 12vdc and compact design in sizes from 1/8 BSP to large flanged solenoid valves to DN350 sizes.

2 Way Direct Acting Solenoid Valves UK Stock

2 Way Direct Acting Solenoid Valve.

Power Off - valve remains closed.
Power On - Armature lifts and valve opens allowing flow from ports 1 to port 2.
 
Ideal for High Pressure low flow Applications

3/2 Way Direct Acting Solenoid Valves UK Stock

3 Way Direct Acting Solenoid Valve

Power Off - Port 1 closed, port 2 open to port 3.
Power On - Armature Lifts blocking Port 3, port 1 now open allowing flow to port 2
 
Ideal for Actuator and Cylinder Control or diverting flow.

2 Way Servo / Pressure Assisted Solenoid Valves UK Stock

2 Way Servo Assisted Solenoid Valve

 
Power Off - Port 1 closed
Power On - Armature Lifts, Pressure above diaphragm is released via small pilot hole into port 2 allowing port 1 inlet pressure to lift diaphragm allowing full flow.
 
Ideal for Open to Atmosphere and medium pressure high flow applications. DP over 0.5 Bar (P1-P2)

2 Way Hung Diaphragm / Assisted Lift Solenoid Valves UK Stock

2 Way Hung Diaphragm Solenoid Valve.

Power Off - Port 1 Closed
 
Power On - Armature lifts connected Diaphragm, Pilot Pressure above diaphragm released into port 2 allowing port 1 inlet pressure to assist lifting diaphragm allowing flow to port 2.
 
Ideal for Low Pressure, Vacuum and Closed loop high flow pipework systems.

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