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)?
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Ross Mackay Forum Moderator 94 Posts
Re: Justifying minimum flow facilities6 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.