NEWS ARTICLE ARCHIVESVariable-speed pressure Systems Perth from Kelair Pumps![]() Variable-speed pressure systems perfect in Perth Sales Engineer Michael Charnley (WA) Kelair's Perth office was approached by a consulting engineer to assist in designing a cooling and lubricating system for a glass cutting business. The plant machinery would require a clean water system and a recycled water system. Each system had to be able to supply between one to seven machines with water while maintaining a constant pressure without fluctuation of more than +/-5% of the set pressure (450kPa). The design included water supply for future expansion of the business and the pumps had to be sized to supply up to twelve machines. After use in the machine the water is to be collected in a sump so a pump would be required to transfer the glass-laden water to a recycling plant for re-use. For the recycled water a Kelair Triplex variable-speed pressure system was selected. The system consists of three vertical multistage pumps each fitted with a Hydrovar speed controller and pressure transducer. The three Hydrovars are interconnected to provide smooth operation across a wide flow range. The pumps are supplied mounted on to a single base with stainless steel inlet and outlet manifolds, valves and a control panel. For the clean water a similar Kelair dual variable-speed pressure system was selected and set up in a similar fashion. The Kelair Hydrovar speed controllers are very easy to adjust in the field. They do not require specialised equipment to change speed flow or pressure so this means the client can gradually grow the plant without expensive commissioning visits. The Hydrovars are also lockable to prevent unauthorised adjustments. |
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