Detailed Maintenance Steps
1. Visual Inspection
Check for leaks, corrosion, rust, or wear on the valve body, stem, and flange connections. Inspect the valve seating for damage or misalignment.
2. Lubrication
Apply recommended lubricants to all moving parts, valve stems, and packing to ensure smooth operation and reduce friction.
3. Tighten Bolts & Packing
Ensure all bolts, nuts, and packing are tightened to prevent leaks and maintain proper sealing. Replace packing if worn out.
4. Cleaning
Remove scale, debris, and sediment from both internal and external surfaces. Ensure smooth movement of the gate and stem.
5. Functional Testing
Open and close the valve fully multiple times to check smooth operation, proper sealing, and any unusual noises or resistance.
6. Troubleshooting
Identify issues like sticking, leakage, corrosion, or noise. Apply corrective actions such as lubrication, tightening, or part replacement.
