Metering package for Manjung power station

Anderson Greenwood Instrumentation Products, part of Tyco Valves & Controls, recently supplied a major package of equipment to the Manjung power station in Malaysia, comprising three sets of equipment for each of the station’s 700mw coal-fired units. The order was placed by sub-contractors Weir Pumps Ltd (UK) and Hopkinsons (UK) on behalf of Alstom Power Plants Ltd (UK). Each set of equipment comprised a differential transmitter complete with a five-valve manifold and an orifice plate and carrier with six orifice isolation root valves. The equipment is to be used to monitor the flow of boiler feed water from the feed pump to the boiler. One of the differential pressure transmitters is to control the opening and closing of the feed pump leak-off or re-circulation valve, which maintains a minimum flow through the boiler feed pump when demand for the boiler feed water falls below the pre-set limits.

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