2026-09-28

Valve is not Opening or Closing..

If the valve is not opening or closing;

Dirt inside the valve.

Solution

Disassemble the valve and clean-up its parts.

Diaphragm may be torn apart.

Solution

Replace with the original Gevax spare part.

Seal may be crushed.

Solution

Replace with the original Gevax spare part.

Coil may be mounted in wrong position after maintenance.

Solution

Mount the coil in right way.

No electricity supply.

Solution

Check your wiring.

Line pressure may be less than the products minumum working pressure.

Solution

Check if the lie pressure is compatible with the product's differential pressure indicated catalogue.

Line pressure may be less than the products maximum working pressure.

Solution

Check if the lie pressure is compatible with the product's differential pressure indicated catalogue.

The valve choosen may not be suitable for the media passing through inside.

Solution

Check if the valve choosen is compatible with the media.

Ambient temperature may be greater than products range.

Solution

Check if the temperature range of the valve is compatible with your application.

Original Gevax spare part might not be used when re-assembling the valve.

Solution

Use original Gevax spare parts only.

The valve may be assembled with a missing part.

Solution

Add the missing part and re-assemble the valve.

The coil voltage may not be suitable.

Solution

Check the coil voltage and see if it's suitable for your wiring.