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Boiler Feed Pump Calculator
Estimate required boiler feed pump flow rate from steam output and blowdown rate. Formula: GPM = Steam (lb/hr) × (1 + blowdown%) ÷ 500, then apply a safety margin.
Result
Enter steam output rate and blowdown % to size your feed pump.
This gives a first-pass flow estimate only. Full pump selection also requires total discharge head (boiler pressure + elevation + friction + valve losses) and NPSH analysis — consult your boiler engineer or pump manufacturer's curves before procurement.