More Precision for Water Meters
Tuesday, 1 July 2008
Elster Metering Holdings Ltd. with headquarters in Luton/UK, is a manufacturer of water meters for different areas of application. Using an all-electric IntElect injection moulding machine from Demag Plastics Group, the producer will introduce more precision to its production of plastic metering chambers with narrow tolerance levels. Injection molded components for water meters have been in use for forty years.
Over the years, polymer material has slowly superseded metal in measuring chambers and the latter material is now restricted to a small number of axes and shafts. Water meter axes and shafts are inserted into the injection molds and encapsulated by injection molding. The accurate registration of the measurement data, which is acquired on the velocity principle, requires maximum-precision measuring chambers. Inserted into the meters, these measuring chambers transmit the velocity of the rotor to an output register for reading directly by means of a shaft or inductively by means of a co-rotating magnet.