Emerson Authorized Service Provider
Safety / relief valve (PSV) testing & repair
TTS tests, sets the pressure and repairs safety / pressure-relief valves (PSV/PRV) for Oil & Gas and Refining – Petrochemical plants — including pop testing, seat tightness per API 527 and on-site testing support. We service Crosby, Anderson Greenwood, Yarway and Farris.
Updated June 2026
Service scope
- Pop test & set-pressure verification
- Seat tightness testing per API 527
- Spring, nozzle and disc replacement
- Setting & lead sealing after testing
- On-site (online) testing
Brands serviced
Crosby, Anderson Greenwood, Yarway, Farris (Emerson)
Standards & notes
- Per API 526 / 527 / 576 standards
- Test certificate issued with lead seal
- Support for high-pressure PSV systems
Frequently asked questions
How often should safety valves be tested?+
The interval depends on plant policy and the medium; we advise per API 576 and the actual valve condition.
To which standard are safety valves tested?+
Per API 526/527/576: pop test to verify set pressure, seat tightness check and a certificate with lead seal.
Does TTS test PSVs on-site?+
Yes. We support online testing and in-workshop testing in Vung Tau, with full documentation.
Need service for this valve type?
Contact the TTS Vung Tau workshop for consultation and a quote.