Emerson expands cryogenic valve testing
Emerson expands cryogenic valve testing to meet growing demand for LNG applications
Emerson can now test globe, angle, butterfly and ball valves up to DN 900, 36 in NB at cryogenic temperatures down to -196°C
Emerson’s new test facility at Cernay, France ensures optimal valve performance for applications in the LNG industry
The new facility has two tanks for testing globe, angle, butterfly and ball valves up to DN 900, 36 in NB, and can carry out a range of tests at cryogenic temperatures down to -196°C. It is important that valves designed for low temperature applications are tested at typical operating temperatures to ensure optimal performance. For example, a tight shut off is crucial in many cryogenic applications and valves need to be tested for leakage across the seat. These tests are performed by immersing the valve into a tank of liquid nitrogen, pressurising the valve inlet with helium gas at 7 bar and measuring the seat leakage.
The test facility has been specifically designed to minimise any environmental and safety issues and is fully monitored and controlled by Emerson technologies, including a DeltaV™ digital control system. Oxygen sensors, linked to an alarm, monitor the local atmosphere, eliminating any risk to personnel in the area. The DeltaV system enables the valve tests to be controlled from a remote location, ensuring complete safety for test and inspection personnel.
Emerson’s Cernay plant, situated in the Alsace region of France, is the largest of the five Emerson facilities manufacturing Fisher control valves in Europe. The plant is helping Emerson to meet increasing demand for its Fisher control valve ranges, in particular for the larger sizes including low noise trim technology, anti-cavitation solutions and also special valves for the most arduous applications.
Emerson Process Management
Tel: 0870 240 1978
Website: www.emersonprocess.co.uk
Published: 7th July 2011
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