Hi friends I am working in oil -chemical industry. Actually we r using 2 centrifugal pumps of 500 m3/ hr capacity each. Its discharge pressure goes up to 8 bar before the filter. Due to 8 bar we often have problem of leak in filter cover gasket.pressure releif valve lifting. So we throttle t discharge valves to reduce pressure to 4 bar and run 2 pumps. I THINK if i change this centrifugal to VFD pumps its possible to use one pump only also is it efficiency in terms of capacity and electrical consumption. Thanks
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