General Purpose Solenoid Valve Suppliers

General-purpose solenoid valves are ideal for dealing with a range of applications including compressed air, natural gasses, water and some oil.

Choose from our range of general-purpose 2-way and 3-way ODE solenoid valves (these are suitable for use with air, oil, water and gases). Available from 1/8” to 2” with normally open and normally closed configurations in brass and stainless steel.

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A water solenoid valve controls the flow of water through pipes using an electromagnet.

When the water solenoid valve is switched off, the water pipe is closed by a plunger or rod made from ferrous metals such as iron or steel. Within the body of the solenoid, the rod is wrapped in a copper coil. When the system is switched on, an electrical current passes through the coil, creating a magnetic field. The magnetic field moves the rod out of the pipe, opening the way for water to flow through.

If the water solenoid valve is not operating correctly, such as not opening or closing, leaking, or overheating, these are signs there may be a problem, such as a wiring issue. A water Solenoid valve can be tested with a multimeter by following these steps:

Set the multimeter to ‘ohms’ (Ω) to test for continuity.
Touch the multimeter’s black lead to the negative (-) terminal of the solenoid valve, and the red lead to the positive (+) terminal. These will be metal pins or spade connectors used for wiring. If there are 3, the smallest will be used to ground the circuit.
Connect the solenoid to power source, such as a battery and apply the current. Once the current is flowing through the circuit, you should hear a click of the solenoid valve moving. If you don’t hear this, the solenoid coil isn’t working properly and needs replacing.
If you did hear the click, then check the continuity reading on the multimeter display. You should have a low ohm reading between 0 and 1. Any other reading indicates that the solenoid needs replacing.

The parts of a water solenoid valve that may need repairing include:

Wiring connections
Plunger seal
Coil insulation

To understand the parts of the valve that need repairing, open up the water solenoid valve casing and inspect each part carefully. All parts should be clean and free of debris or dirt. The terminals should be connected to the copper coil at each end - these can be repaired with solder. If the plunger seal, the rubber disc at the end of the plunger, is damaged or corroded, it won’t create a water-tight seal - this is difficult to repair, and you may need to replace the valve. The coil insulation is necessary to avoid burning out the part. If this is damaged or corroded, replace it.

No. A solenoid valve that is in good condition and working well will create a water-tight seal. If water is seeping past a solenoid valve, check for debris or dirt blocking the valve from closing fully, and investigate whether you need to repair or replace the valve.

Many solenoid valves are general purpose, and can be used with either water or air. If a valve is designed specifically for use with water, it will likely restrict airflow to an extent, but you should check with a solenoid valve supplier.

Yes, a solenoid valve can be used to restrict or control the flow of water, including hot and cold water and steam. Solenoid valves are also used to control the flow of air, chemical fluids and fuel gasses in many systems.

You can easily clean a water solenoid valve by following these simple steps.

Unscrew the fittings from the solenoid valve, ensuring you keep track of how all parts fit together.
Use a cotton swab and clean water to clear any debris, rust or dirt from the water intake, around the o-ring gasket and from the magnetic armeture.
You can take this opportunity to inspec the rubber pad at the end of the plunger. If this is dented or damaged, it may not form a good seal, causing your valve to leak. This part is tricky to replace, and you may need a whole new solenoid valve.

Need some help? Please do not hesitate to get in touch by calling 02476 350 958 or simply using our online contact form

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Unit 7 Exis Court,
Veasey Close,
Attleborough Fields,
Nuneaton,
Warwickshire,
CV11 6RT

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General Purpose Solenoid Valve Suppliers

21A Prop Series

21A Series

21A-PW Series

21A16 Series

21ALB Series

21H series

21H-EN Series

21HT-HN-HF Series

21IH-IN Series

21JB-JN Series

21JL Series

21L Series

21M – 4144 Series

21PW Series

21TG-TN Series

Need some help? Please do not hesitate to get in touch by calling 02476 350 958 or simply using our online contact form

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