Kent Introl Unveils New Tensile/ Compression Testing Capability

Tensile compression test rig  KOSO Kent Introl

Tensile compression test rig KOSO Kent Introl

Mark Creighton, Senior Subsea Engineer

Mark Creighton, Senior Subsea Engineer


Kent Introl has long conducted a wide range of valve testing techniques to ensure valves manufactured at their Yorkshire factories meet the requirements of the world's most demanding applications and internationally recognised quality standards.

Over the last few years KKI have seen a significant demand for the tensile testing of valves and assemblies, ensuring any special lifting interfaces are capable of twice the gross weight or greater. Until recently though, the testing of valve assemblies was outsourced to a third party which took a disproportionate amount of time out of the production schedule and added significant cost to the process. With customers increasingly demanding this test for both topside and subsea valves, KKI decided to invest in building its own load test rig on-site.

In charge of the project is Mark Creighton, Senior Subsea Engineer at KKI, who designed, developed and managed the installation and commissioning of the rig in its entirety. Meeting the rigorous standards of Eurocodes 1 and 3 the rig stands at 4.3m high and weighs approximately 8 tonnes. It can test objects of any type and dimension up to 2.5m x 2m x 2.5m, accommodating tensile and compressive strength tests up to 10 Tons. Individual valve assemblies under test are subjected to tensile or compressive forces of twice the gross weight specified on the assembly.

The structure was designed and installed for ease of operation and access; one person can carry out the testing procedure without assistance. Customers and auditors are invited to witness the testing process, which is carried out under strictly controlled conditions; the structure is surrounded by high energy impact wire frames and bullet-proof glass for the unlikely event of a valve failure under test.

Today, the unit is fully operational, used regularly for the testing of newly-manufactured topside and subsea valves as well as those being repaired, maintained or upgraded by the KKI Aftermarket team. The company will also undertake the testing of external valves for third party producers in the near future.

Additionally, four fully equipped test bays at KKI are used to carry out the full range of valve tests, including body hydrostatic testing, body gas testing and PR2 qualification testing (to API6A/ISO-10423/ ISO-13628-4) and fugitive emission testing (to ISO15848-1). A test hydraulic power unit (THPU) with automated programmable logic control (PLC) enables the qualification and factory testing of subsea hydraulic actuators. A high-pressure gas testing pit allows gas testing with helium or nitrogen, to 1.1 times a valve's maximum specified working pressure.

Tel: +44(0)1484 710 311
Email: info@kentintrol.com
Web: www.kentintrol.com

Published in Valve User Magazine Issue 38


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