Solenoid Valve Coil Supplier

Solenoid valve coils are used to convert electric energy into lateral motion. The coil includes a copper wire which allows the current to flow through the coil and generate the magnetic field.

Here at Avalco we have a range of ODE coils to suit all our valves, available in the following voltages: 12vDC – 230v DC solenoid coils and 12v AC – 380v AC solenoid coils in 5w, 8w, 12w and 14w versions. Make sure you choose the right power rating coils can overload or burn out if the power rate is too high.

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A solenoid valve coil uses electromagnetic energy to create the lateral motion that opens or closes a valve. Consisting of a copper coil around a ferrous metal rod, the solenoid moves when a current passes through the coil, generating a magnetic field that pulls the rod, opening or closing the valve. Solenoid coils are available as N/O (normally open) or N/C (normally closed).

You can check solenoid coil resistance using a multimeter by following these simple steps:

Remove the solenoid coil from the system if possible.
Connect the solenoid to a power source. You should hear a click of the valve plunger moving in response to the current. If you don’t, the valve is broken.
Set your multimeter to ohms (ꭥ) to measure the resistance of your solenoid coil.
Touch the multimeter’s red cable to the positive terminal of the solenoid, and the black cable to the negative terminal.
Check the reading on the multimeter. It should read between 0 and 1ꭥ. Any other reading indicates that there is too much resistance in the solenoid coil system, impeding the current’s flow.
The solenoid will need replacing if resistance is higher than 1ꭥ.

A solenoid coil is a type of valve operated using a small electromagnetic field. When the circuit is switched on, a current passes through the coil. This creates a magnetic field which pulls the valve plunger, either opening or closing the valve.

There are many reasons why a solenoid coil will burn out, and usually this can be traced to the operating conditions of the system in which it is installed or environmental factors. It is more common in AC solenoid coils than in DC systems. Some reasons include:

The voltage is too high or too low: operating voltage should be within 10% of the coil voltage rating.
Cycling Too Rapidly: the inrush current generates heat, which needs to escape before the coil is activated again. If coil is activated too many times in a row, the heat build-up can damage the coil insulation, leading to burnout.
Dirt in Oil or Atmosphere: If small particles lodge under the solenoid coil armature, they can keep it from fully closing, causing the coil current to remain higher than normal. Keep solenoid dust covers tightly in place.
Atmospheric moisture: high humidity can cause corrosion in the solenoid coil’s structure, leading to sticking within the system.
Excessive Flow: high flow of fluids through the valve can cause a force unbalance that causes the coil to unspool.

Solenoid coils have many varied applications and can be used to create flow control points in systems directing water, gas, air, fuel or chemicals. Examples of solenoid coil application types include:

Showers
Sprinkler systems
Drinks vending machines
Pneumatic Equipment
Hydraulic Equipment
Air conditioning systems
Medical and dental equipment
Power washers

Solenoid valves are also used in automatic door locking systems, with the rod entering the door frame to create a secure, electronically controlled lock.