What Are Valve Coils?

A solenoid coil is an electrical component that produces an electromagnetic field by using a wire that’s wrapped around a metal core. When an electrical current goes through the valve coil, it provides an electromagnetic field and converts electrical energy into linear motion. The valve coils come in various sizes, IP protection levels, voltages, power levels, and temperature ratings. When you want to replace a solenoid valve coil, make sure to consider all these factors.

Where are Solenoid Valve Coils Used?

Solenoid valve coils can be used in various industrial applications, including production machines, types of automated equipment, etc. The most common use of solenoid valve coils is to activate pneumatic and hydraulic valves. There are many types of valve coils, including direct-acting, pilot operated, four-way valve coils, etc. They’re typically used to switch an application on or off automatically. When the voltage goes through the coil, the movable armature gets energized, activating anything that’s attached to it.

How to Replace a Solenoid Valve Coil?

Whenever the solenoid valve coil is damaged and causes the solenoid valve not to work properly or stop operating, it means that it’s time to replace the valve coils. Replacement of coils, including gas valve coils, is a requirement for the high performance of solenoid valves.

#Here are tips on what to consider while choosing and replacing the right valve coil.

● Dimensions – You must compare the dimensions of your replacement valve coil, like the diameter (D) and height (H). The diameter and height of the replacing valve coil should correspond to the original one. The smaller the clearance is, the better because when the gap increases, the field strength decreases.

● Voltages and Current Type – Choose the right current type and voltages for your valve coils. There are two major types of current – AC and DC. AC stands for Alternating Current, in which electric charge flows in various directions, switching back and forth periodically. Direct Current (DC) is another type of electrical current that flows only in one direction. And there are various voltages, 12V DC, 24V DC, 24V AC, 110V AC, etc.

● Connector – Determine the connector that solenoid valve coils have, which is mostly with a DIN connector. The latter has many advantages, including quick connection, fast coil exchange, great insulation, etc. The most common types of this connector are DIN43650-A and DIN43650-B.

● Installation – Detach the electrical supply, unscrew the top nut and remove the o-ring. Before installing, carefully read the safety instructions. Remove the coil and replace it with a new one, making sure that the new o-ring is in place. Tighten the cap nut and rewire the connector.

Make sure to replace solenoid coils as they wear out. If you need any guidance to choose the right replacement valve coil for a pneumatic or hydraulic system, you can opt for HAK Fluid Power Equipment LTD, based in Toronto, Canada.