We are confronted with two different services pumps both using contineous minimum flow
1. Condensate pump from a vacuum surface condenser of a steam turbine
2. Lube oil pump also from a vacuum stripping tower
what are the main reasons justifying these minimum flow facilities on these pumps especially for the second one pumping high boiling point (low vapor pressure)?
Have an insight or suggestion?
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Re: Justifying minimum flow facilities
6 June 2008 at 1:29pmThe reason for using a minimum continuous flow arrangement in a pumping system is to ensure that the pump never drops below that particular flow regardless what is needed in the system. For example, if there is a variation in flows required by the system, one of which may be lower than the minimum continuous acceptable flow through the pump, a bypass rated for the minimum continuous flow required by the pump, protects the integrity and reliability of the pump. I trust this will be of help.
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