Frequently Asked Questions about TORK Solenoid Valves

For water, use the T-GP (general purpose) type.

If the steam is up to 5 bar and 160°C, choose type T-B 201-205.
If the steam is up to 3 bar, 140°C, and the connection is larger than DN 25, choose type T-B 206-208.

For oil (diesel), it is necessary to use Viton, NBR gaskets, or Teflon. For these applications, you can use the T-Y series. The gasket can also be replaced in standard water valves (T-GP).

A NO solenoid valve, or normally (without power) open type, ends with the letter N or A, e.g., T-GPA or T-GZN.

It's not a problem; the valve needs to have 0.5 bar at the inlet. Once you let the medium in, the valve will open after overcoming the resistance. A person cannot generate a pressure of 0.5 bar in one breath.

Yes, the coils on the given valve can be swapped for others with different power supplies.

Yes, the coil can withstand temperatures up to 180°C. However, prolonged load reduces its lifespan, and the coil may burn out.

The coil is not designed for long-term load. It should only close or open the valve for a short period. For long-term load, use a PWM connector, which reduces the load by up to 88%, and the coil will not overheat.

Something is likely preventing it from closing. Usually, it is dirt inside the valve. A stone as small as 1 mm can prevent the valve from closing. The solenoid valve needs to be disassembled and cleaned. We recommend installing a filter.

To find the cause, the solenoid valve needs to be disassembled. A common fault in the valve body is dirt or the use of an incompatible medium attacking the body or membrane. The coil may also be burnt out. More about possible causes of failure can be found here.

T-GM is an old designation, today it corresponds to the T-GP designation. We can help you find and technically clarify any marking or type. Do not hesitate to contact us.

You can use T-ZR across the entire range of dimensions or small solenoid valves up to DN 15 T-BT 203 or GT 103.5.

For 100 bar DN 6, use type T-GH 101.
For 40 bar DN 10 to DN 50, use type T-GH.

The most common coils we have are blue T-SB 2 (230 V) with a power consumption of 15-18 W. Coils for direct current then have 22-28 W.

Unfortunately not, even if the coils look similar. If the diameter of the hole in the coil differs by even a millimetre, the coil will buzz or not provide the necessary power to close the solenoid valve.