Parker Instrumentation Awarded Snohvit LNG Contract

Parker Instrumentation has been awarded the contract to supply all the instrumentation components and sub-systems to the Sn°hvit development, the world's northernmost liquefied natural gas (LNG) project. In total, some 1000 weatherproof instrumentation enclosures will be provided, complete with Parker manifolds, valves and tube fittings - and fitted with the process transmitters specified by the project contractor. Instrument systems are already being supplied to equipment builders, bulk deliveries to the onshore gas processing site being built at Melk°ya will commence in September 2003.

Parker's ability to supply complete instrumentation assembly packages to the Sn°hvit Group's engineering, procurement and construction manager, Linde, fitted with anti-freeze heating systems to combat the harsh environmental conditions - were key factors in winning the contract. The systems will provide the process instrumentation required for Linde's ground-breaking, energy-efficient, liquefaction plant.

Parker is supplying all the manifolds, valves, tube fittings and tubing components required for the onshore LNG plant. In total, Parker expects to supply around 1000 H-Series manifolds, over 20km of conventional and heat-trace tubing, and several thousand twin-ferrule A-LOK compression tube fittings. In addition to standard 316 stainless steel fittings, Parker is supplying fittings fabricated from 6Mo (6% molybdenum steel) for certain corrosion-prone areas of the process - such as the seawater cooling systems.

To further protect against corrosion, all the tube fittings will be treated using the company's proprietary Suparcase process. This hardens the back ferrule - the part of the fitting responsible for ensuring a strong grip on the tube - without adversely impacting susceptibility to corrosion. It avoids leaving the avenues for the onset of corrosion that can be caused by conventional hardening techniques.

Parker's instrument enclosures for the Sn°hvit project will be fitted with high performance heating elements and insulated to ensure the integrity of the measurement systems. They will operate down to -25°C, an essential feature for the Melk°ya location which - at above 70°N - is well inside the Arctic Circle.


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