Plant room expansion vessel servicing
Plant room servicing starts with the system, not the vessel. We establish the fill pressure, the safety valve setting and the static head, then work out what the vessels should be pre-charged to and compare that with what they actually hold. Each vessel is isolated in turn where valves allow, the water side is drained, the pre-charge is measured and reset with nitrogen, and the vessel is inspected for corrosion, support and connection condition. Where isolation valves are missing or seized we price fitting them, because a vessel that cannot be isolated cannot be maintained.
- System fill, relief and static head established first
- Each vessel isolated, drained and tested in turn
- Nitrogen recharge to calculated pre-charge
- Corrosion, supports and connections inspected
- Isolation valves fitted where missing or seized
