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Marine Globe Valve Maintenance Tips: Extend Service Life & Avoid Downtime
Proper maintenance ensures reliable performance for 5+ years in harsh marine environments.
Routine Maintenance (Monthly/Quarterly):
Visual Inspection: Check for corrosion, leaks, or damage.
Packing Adjustment: Tighten gland bolts if stem leaks (use graphite/PTFE packing).
Lubrication: Grease stem threads and handwheel.
Operational Test: Open/close fully to ensure smooth operation.
Annual Maintenance:
Hydrostatic Test: Test at 1.5× rated pressure (per API 598).
Seat & Disc Inspection: Repair or replace worn components.
Coating Touch‑Up: Prevent corrosion on exterior surfaces.
Troubleshooting Common Issues:
Leakage at Seat: Worn seat/disc → repair or replace.
Stem Leakage: Loose packing → adjust gland bolts.
Hard Operation: Corroded stem → clean and lubricate.
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