Our test benches are suitable for hydro static and gas testing for valves from ½” and up, and pressure classes to ANSI 4500 // API 15,000 without limitations in term of end connections. Test Bench is designed with suitable protections (bunker type) and equipped with a dedicated control panel which allows the operator to conduct the test without entering in the test bench area.
All operators are fully trained and experienced to perform all types of test required by the main test specifications (API 6A, API 6D, API 598, ISO 14313, BS 6755, ….). All benches are also equipped with a dedicated computerized data system with wireless network connections which allow acquisition and evaluation on line of all test parameters (pressure, temperature, torque, thrust, and strain gauges). |
Test procedure consists of subjecting valves to a flame of specific thermal power for a specified period (typically 30 or 120 minutes). The integrity of the component at the end of the test indicates that the test itself has been passed.
The relevant governing specification is the BS6755 P.2, API 607 and ISO 10497. Wide range of Cornerstone Valve production is of fire safe design. |
The API 6A Appendix F PR2 qualification test is undoubtedly the most widespread, combining both the effects of pressure (P), and temperature (T). There are different types of temperature cycles in addition to the operation cycles. The operating cycles are typically 200, including those at high and low pressure. To extend the validity of the qualification PR2 to similar components, one can apply the concept of dimensional scaling and by pressure class, in accordance with API 6A.
Cornerstone Valve recently completed and passed the requirements of API 6A 20th Edition Standard PR2 testing with an inventory valve from 15 months storage. |
Cornerstone Valve designs and manufactures Cryogenic ball valves. We have a special test area dedicated to perform full cryogenic testing at -320F using liquid nitrogen.
Special equipment lowers the valve temperature from the external surface, submerging the valve in a liquid nitrogen bath, or injecting and pressurizing liquid nitrogen inside the valve, simulating the operating conditions. |