Service valves
used to attach the retriever tool to the Access Fitting that has to be serviced; its main purpose is to hold the line pressure in check while the injection device or monitoring probe is being replaced or taken out.
The NACE MR-0175 (92 Rev) standards for materials acceptable for use are met by all service valves.
There are service valves rated for 400 bar (5700 psi) and 250 bar (3600 psi).
Furthermore, service valves with a 250 bar rating weigh only 23 kg altogether, making them incredibly small.
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Service valves
Service valves used to attach the retriever tool to the Access Fitting that has to be serviced; its main purpose i