Can a control valve be mounted with actuator in horizontal position?

Yes. Control valves can work in any orientation, however the preferred installation is with actuator in vertical position. This will prevent side-loading of the internal components, the valve will have a much longer service life and maintenance easier. However a special attention must be paid to the following aspects whenever a horizontal installation is provided:

  • steam jacketing, if provided, must grant a good condensate drain; this means that steam jacketing outlet connection shall be in the lowest possible position
  • accessories such as filter airset, solenoid valves, etc., must be installed in upright position.

The request of installation with actuator in horizontal position must always and clearly be indicated to the manufacturer of the control valve.

Valves on Cryogenic service (-100°C and below) must not be installed with actuator in horizontal position.