Ohio-based Parker Hannifin has secured a SIL 2 approval for its HiPro ball valves. SIL (safety integrity level) refers to the level of risk reduction provided by safety instrument functions. HiPro ball valves are manual, pneumatic, and electrically actuated to provide quick turn on-off control of fluids used in process and instrumentation applications. In this case, the valves for Statoil’s Aasta Hansteen platform in the Norwegian Sea were required to meet the IEC 61508:210 standard.
EPC contractor Hyundai Heavy Industries had specified Parker’s automated instrumentation HiPro Ball Valve system for 10 emergency chemical injection shutdown applications. The associated need to isolate environmentally harmful defoamer, emulsion breaker, scale inhibitor, and flocculant made full SIL2 approval imperative. The valves will be used in the chemical injection system on the platform in 1,300 m (4,265 ft) of water in the Voring area, 300 km (186 mi) from shore.