Pressure reducing control valves are essential components in various industrial and commercial applications. They ensure a consistent downstream pressure regardless of fluctuations in upstream pressure or flow rates. Regular preventive maintenance is crucial to ensure Automatic Pressure Reducing Valves operate efficiently and have a long service life.
This article outlines key preventive maintenance practices for pressure-reducing control valves, specifically focusing on Flomatic Model C101 – AWWA C530.
Regular Inspection and Cleaning
Visual Inspection: Regularly inspect the valve and its components for any signs of wear, damage, or leaks. It is recommended to visually inspect the diaphragm (top cover must be removed for inspection), PRP (Pilot Pressure Reducing Valve), and orifice.
Cleaning: Ensure the valve and its components are free from dirt and debris. Clean the Y-strainer and orifice regularly to prevent clogging, which can affect valve performance.
Proper Installation and Start-Up
Installation: Ensure the valve is installed with the arrow on the body pointing in the direction of flow. Flush the pipeline before inserting the valve to prevent debris from entering the valve and control piping.
Start-Up: Follow the correct start-up procedure, listed in the O&M provided by your valve manufacturer.Please remember Flomatic sets the pressure to your specifications when ordering the valve.
Troubleshooting Common Issues
Valve Fails to Close: This can result in excessive outlet pressure. Common causes include air-bound main valve, leaking indicator stuffing box, ruptured PRP diaphragm, or fouled orifice. Regularly check and address these issues to maintain proper valve function.
Valve Fails to Open: This can be due to incorrect PRP adjustment, open nee
ion: Ensure the valve is installed with the arrow on the body pointing in the direction of flow. Flush the pipeline before inserting the valve to prevent debris from entering the valve and control piping.
Start-Up: Follow the correct start-up procedure, listed in the O&M provided by your valve manufacturer.Please remember Flomatic sets the pressure to your specifications when ordering the valve.
Troubleshooting Common Issues
Valve Fails to Close: This can result in excessive
