Pneumatic actuator installation

Usually, the centerline of the cylinder is parallel to the center line of the valve. One of the reasons is this configuration saves space and looks neat, nothing protruding from the pipe and blocking walkways, etc...

Is it acceptable to install the actuator with its center line perpendicular to the valve center line ? Can I rotate it 90 degree ? Appreciate the forum member opinions.

The picture below shows how it usually done.

Actually it shouldn't make a difference in regards to the operation of the valve. The only issue I see is it would take up a larger chunk of the access area around the valve ...this may or may not be an issue, so I guess it would depend on the site. My $0.02 anyway, Good Luck! ...Mark

Thank you both of you for the quick responses.

It's a retrofitting job. I have to convert a manual valve into an ESDV. The space I have is quite congested and installing the actuator in the usual way will cause clash. The options I have are, please feel free to add.

1. Rotate the actuator as said above.
2. Roll the valve side way or upside down
3. Shut the line down and install new ESDV at another place.

The valve locates next to an flat bend and rotating the actuator 90 degree does not take much access area if I position the spring canister on the same side of the pipe after the bend. The cylinder is sticking out a little bit but I think it's acceptable.

Please give me reasons for not doing it, apart from blocking access.

This must be a record, in minutes, my topic has drawn the attention of three experts on this site, including the admin.

Back to the case.

I have not checked with valve vendor, as this was purchased years ago. However, we bought some others ESDV from the same vendor, about the same time in the past, and some of them have identical valve bodies. So, I think fitting an actuator on top of the valve should not be a problem. Now, if I rotate the actuator, the forces produce by the actuator acting on the valve should be the same. If I roll the valve side way then the valve vendor will not be happy as the valve stem will have to take some loads at different direction. If I roll the valve upside down, the stem seal may get damaged overtime. That makes the valve vendor not happy. In addition, rolling the valve requires shutdown.

If I can relocate control panel so the pressure gauge is visible, the solenoid and instrument valves are accessible, I think the operator will put up little resistance.

I am working on a datasheet to procure this actuator, hoping the vendors will come back with positive responses.