Control Valve Repair: How to Replace Valve Trim

One effective way to repair your control valve is to replace the valve trim.

Replacing valve trim is a simple and cost-effective option when compared to replacing an entire valve. There are two primary reasons to change your valve trim:

1. Your process flow rates have changed so that the original valve trim is no longer sized correctly
2. You have worn out the trim in your valve

In this article we’ll explain how to change out the valve trim on Kimray two-inch High Pressure Control Valve.

How to Remove control Valve Trim

1. Unthread and remove the adjusting screw.
    
2. Remove the bolts on the coupling block.
    
3. Unthread and remove the four body bolts holding the topworks on.
    
4. Remove the topworks.
    
5. Unthread and remove the stuffing box from the valve body.