Pressure Testing
In-house valve testing to international standards
RP Valves operates a dedicated non-destructive testing facility at our UK site, carrying out inspections to multiple industry standards – including ASME, ASTM, API, NACE, MSS and ISO specifications.
Hydrostatic testing
Valves from ¼" to 48", class 150 to 2500, tested in accordance with API 598, BS EN 12266, API 6D and customer-specific requirements, including 24-hour testing using pressure chart recorders.
- Test rig 1 – ½" to 2", class 150 to 2500
- Test rig 2 – 2" to 12"
- Test rig 3 – 6" to 24"
- Test rig 4 – ½" to 4"
High pressure gas testing
High pressure gas testing of valves using nitrogen, helium or a mixture up to 10,000 psi, via a bespoke control panel designed and built to RP Valves specification. Seat leakage is measured via calibrated flow meters.
All high pressure gas testing is conducted within a purpose-built safety bunker, with the tester safely observing and controlling the test from outside the area via high-definition cameras.
Emission testing
Emission testing carried out by personnel qualified to BS EN ISO 9712 using a mass spectrometer on gland packing and gasket areas, measuring to strict leakage rates in accordance with Shell 77/312, ISO 15848-1 and customer requirements.
Cryogenic testing
Low temperature cryogenic testing of valves down to -196°C, carried out in accordance with BS 6364 or customer requirements. Thermal couplings are placed at critical points and carefully monitored to obtain the correct temperature at the correct rate. Liquid nitrogen is stored in a 950-litre on-site storage tank.
Calibration
Hydrostatic test equipment includes a full set of calibrated gauges and pressure chart recorders. The control panel houses calibrated gauges and two sets of flow meters – one for helium, one for nitrogen. Cryogenic testing uses a dedicated set of thermal couplings.
Witness testing
RP Valves can accommodate witness inspectors either on-site, or remotely via mobile high definition cameras, allowing customers to observe the valve and gauge live with direct communication to the tester. Testing can also be recorded for viewing at the customer's convenience.
Comprehensive pressure test reporting
All testing carried out by RP Valves is accompanied by a comprehensive pressure test report detailing the valve tested and every test performed. Reports are signed by RP Valves’ qualified testing personnel and, where witnessed, counter-signed by a third-party inspector.
Testing personnel are fully trained and experienced.
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Our inventory is constantly being updated.
Please contact us with your requirements and we will match you with the exact valve for your needs.