Feedwater flow is estimated from steam flow with selected safety factor.
Flow in GPM = lb/hr ÷ 500.4 for water approximation.
Pressure head in feet = psi × 2.31.
Total dynamic head = pressure head + extra static/friction head.
Pump horsepower = GPM × head ÷ (3960 × efficiency).
Motor horsepower adds selected margin.
Important: Engineering estimator only. Final pump sizing requires qualified engineering review, code compliance, operating margins, and manufacturer curves.
Result options
Print, copy, or download your result
Use these quick actions after calculating. PDF summary buttons inside the result box still work where available.
Boiler Feed Pump Calculation guide
Formula, example, FAQs, and notes
Formula explanation in simple language
Boiler Feed Pump Calculation follows the visible calculator rules on this page. In simple terms, it takes the values you enter, applies the main formula steps, then returns a result summary. Key steps: Feedwater flow is estimated from steam flow with selected safety factor. Flow in GPM = lb/hr ÷ 500.4 for water approximation. Pressure head in feet = psi × 2.31.
Feedwater flow is estimated from steam flow with selected safety factor.
Flow in GPM = lb/hr ÷ 500.4 for water approximation.
Pressure head in feet = psi × 2.31.
Total dynamic head = pressure head + extra static/friction head.
Pump horsepower = GPM × head ÷ (3960 × efficiency).
Motor horsepower adds selected margin.
Example calculation
Example: enter Boiler steam flow (lb/hr): 10000, Flow safety factor (%): 15, Boiler pressure (psi): 150, Extra static/friction head (ft): 50, Pump efficiency (%): 70. Then press Calculate Result. The calculator uses those inputs to generate a result, interpretation notes, and a downloadable PDF summary.
After changing any input, recalculate and compare the new result with the original assumptions.
Common mistakes and interpretation notes
Do not leave default values unchanged if they do not match your real situation.
Check units carefully before calculating. Mixing inches, feet, pounds, kilograms, days, months, or years can change the result.
Treat the result as an estimate, not a guarantee, quote, diagnosis, settlement promise, or final professional decision.
Disclaimer
Engineering estimator only. Final pump sizing requires qualified engineering review, code compliance, operating margins, and manufacturer curves.
Boiler Feed Pump Calculation FAQ
Helpful answers for long-tail searches
How accurate is the Boiler Feed Pump Calculation?
The Boiler Feed Pump Calculation is accurate to the formula and assumptions shown on the page. Real-world results can change when costs, rates, taxes, laws, health factors, or project conditions differ from the values you enter.
Can I download the Boiler Feed Pump Calculation result?
Yes. Use the page result controls to download the PDF summary when available, or use the Print, Copy Result, and Download TXT buttons added below the calculator.
What inputs matter most in the Boiler Feed Pump Calculation?
The most important inputs are usually the largest cost, rate, quantity, time, and risk assumptions. Small changes in these fields can move the final result significantly.
Is the Boiler Feed Pump Calculation professional advice?
No. This calculator is an educational estimate and is not professional advice. Use it for planning and discussion, then verify important decisions with a qualified professional.
