Advanced Valve Solutions (AVS) has recently finished two major projects, where AVS supplied all valves and hot stabs for both a temporary subsea pig launcher and a receive station for pipe laying services.
In total, AVS supplied about 50 temporary 4in 2,500# trunnion-mounted subsea ball valves, 30 2in floating ball valves and several 1in ball valves, as well as check valves in various sizes.
Trunnion-mounted ball valves have been proven to be superior to floating valve designs, as there is reduced risk of uncontrolled torque increase after periods of non-operation. This increase of torque makes the operation of the valve difficult for the ROV.
The orders were completed with the supply of several newly-developed special hydraulic 4in stab connector systems. This system is a solution for the time-consuming operation of larger size hot stabs, especially in deep waters of 2,500m or more.
The actual 4in hot stab is operated by a small API 6A dual-port hot stab, which is operated by the ROV. The hydraulic pressure available from the ROV operates the 4in hot stab in a smooth, reliable way.
For further information please use the enquiry form on the right-hand side of this page.
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