Safety first with IVS’s in-situ valve testing

December 2022 | News

The critical performance of Pressure Safety Valves can be tested in-situ by IVS’s mobile team of technicians.

Guarding against failure and ensuring valves operate with maximum efficiency, our high-tech equipment carries out precise in-situ testing when the valve is online.

Ensuring compliance with API legislation, in-situ valve testing can be used when a valve cannot be removed for its statutory overhaul due to isolation issues.

IVS’s in-situ kit comes with a key safety feature: a force close system which would close the valve if it went into full lift while on test, thereby addressing the issue and saving the unit from a potential trip.

Keeping downtime to a minimum, the test data identifies valves that can be re-set while remaining in service, with only those needing repair having to be taken away.

IVS’s test can be conducted on all types and brands of Safety Relief Valves (SRVs) and Pressure Relief Valves (PRVs) should a suitable spindle connection be available. The system provides accurate digital readings that form part of each valve’s documented history.

How the safety valve test is carried out

IVS’s semi-auto test uses a computer-controlled force that’s set according to each specific valve’s disc area.

Each test accurately measures the set point pressure when the safety relief valve lifts and when it re-seats.

A key safety benefit is that system pressure does not have to be raised to the set point of the Relief Valve.

Benefits of in-situ valve testing

• Improved safety and efficiency from correctly functioning valves
• Increased productivity with valves remaining in service for longer
• Financial savings with issues detected earlier and no extra costs of removing valves for testing
• Fully documented and certificated process carried out by trained technicians

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