General • Inspections

Checklist for Valve and Damper Actuator Inspection

Use this procedure to check for your valves and damper actuator. Note that it is especially important to check the valves and actuators regularly because they are critical components in a building’s environment. They typically control approximately 35% of a building’s energy systems.

MaintainX

09/16/2022

Checklist for Valve and Damper Actuator Inspection

Checklist:

Cycle actuators from open to close by changing the control signal from the BMS; then check the fail return for correct operation.
Check that linkages/anti rotation brackets are tight and not showing any signs of wear or play.
Check if the actuator has a bent anti-rotation plate and replace if needed. This could be caused by excessive force used on manual override.
Check that the actuator linkage or anti-rotation bracket is touching the position indicators. If not, it is likely the actuator has come loose or that sediment is present in the valve stopping it from closing. Check that the actuator has enough force to close.
Test the manual override operates correctly and is disengaged at the end of the inspection
Look for fading colors on the position indicator. This can indicate very high ambient/operating temperature leading to premature failure.
Listen for excessive noise in the actuator, which could indicate it has been operating for too long. This could be due to a poor control loop or no time-out facility on floating control, either of which could cause potential premature failure.
Check to see if the actuator is driving closed and repeatedly trying to close the valve. This indicates the valve has dirt contaminants or simply needs recalibrating.

Source: MaintainX (Community Member)

Checklist:

Cycle actuators from open to close by changing the control signal from the BMS; then check the fail return for correct operation.

Check that linkages/anti rotation brackets are tight and not showing any signs of wear or play.

Check if the actuator has a bent anti-rotation plate and replace if needed. This could be caused by excessive force used on manual override.

Check that the actuator linkage or anti-rotation bracket is touching the position indicators. If not, it is likely the actuator has come loose or that sediment is present in the valve stopping it from closing. Check that the actuator has enough force to close.

Test the manual override operates correctly and is disengaged at the end of the inspection

Look for fading colors on the position indicator. This can indicate very high ambient/operating temperature leading to premature failure.

Listen for excessive noise in the actuator, which could indicate it has been operating for too long. This could be due to a poor control loop or no time-out facility on floating control, either of which could cause potential premature failure.

Check to see if the actuator is driving closed and repeatedly trying to close the valve. This indicates the valve has dirt contaminants or simply needs recalibrating.