Oil Flush for Lube Oil System
Oil Flush for Lube Oil System
(OP)
Is there a rule of thumb to calculate flow requirements (i.e. velocity or flow rate) for initial flushing of lube oil piping for large rotating equipment (ID Fans for a large boiler)? The installation will consist of 2" and 3 " field welded stainless piping. The need is to provide sufficent velocity to remove any "heavy" particulate from the piping.
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RE: Oil Flush for Lube Oil System
Will you be using the circulation pumps from the new system or temporary pumps just for flushing ?
Based on the rule of thumb for boiler circulation and initial flush, if you can circulate at the design flow rate or better, you have it made.
Will you be using a "flushing liquid" that has a significantly different specific gravity than the operating liquid ? If so you may have to flush at a higher rate to ensure cleanliness.
You will, of course, be using temporary strainers/screens to catch particulate ?
MJC
RE: Oil Flush for Lube Oil System
Nr = 3160 * GPM / (ViscosityCst * IDinches) or
Since the viscosity of oils changes so markedly with temperature it is difficult to give a simple, general "Rule of Thumb".
Regards,