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Jasonxue
I work in the industrial pump sector and write about pump selection, system performance, and maintenance. Here at BBP, I share practical explanations of pump components, operating conditions, and common wear issues to help readers understand their options and ask the right questions when choosing or maintaining a pump.
Pump Efficiency Formula: Calculate Hydraulic, Shaft, and Overall Efficiency
The pump efficiency formula is useful hydraulic output power divided by input power, multiplied by 100%. The arithmetic is short. The important part is choosing the right input boundary: shaft power for the bare pump, or electrical power for the…
Friction Loss Calculator: Darcy-Weisbach Pipe Head Loss
Updated August 2026 A friction loss calculator is a tool that estimates the energy a flowing liquid loses as it moves through pipe. This one returns straight-pipe major head loss in feet from four known inputs: US gallons per minute,…
Tons of Refrigeration to kW Converter: Formula, Chart, and Examples
Updated August 2026 Tons of refrigeration to kW refers to converting a heat-removal rate from refrigeration tons into kilowatts. One ton of refrigeration equals 3.516853 kW of cooling capacity. To convert tons of refrigeration to kW, multiply the TR value…
BTU/hr to kW Converter: Formula, Chart, and Examples
Updated August 2026 BTU/hr to kW is a power-unit conversion that expresses the same heat-transfer rate in two measurement systems. To convert btu/hr to kw, multiply the BTU per hour value by 0.0002930710701722222. For example, 12,000 BTU/h equals 3.5168528421 kW,…
kW to HP Calculator: Convert Kilowatts to Horsepower
To convert kW to hp, multiply kilowatts by 1.34102209 for mechanical horsepower. For example, a 7.5 kW rating is 10.0577 mechanical hp. The arithmetic is exact enough for documentation, but it does not by itself select a motor or prove…
Pump Deadhead: Risks, Warning Signs, Testing, and Protection
Quick answer. Pump deadhead is a zero-delivered-flow condition in which a centrifugal pump keeps running against a closed or blocked discharge. The impeller still moves liquid inside the casing, but useful flow can’t leave. Shaft input is then dissipated through…
How to Check Pipe Flow Inputs Before You Convert
This pipe flow calculator is a conditional conversion tool that relates a stated volumetric flow rate, a stated cross-sectional area, and an average velocity. Its result remains limited by the input record: it cannot, by itself, verify a field measurement,…
Top 20 Mining Slurry Pump Manufacturers in the World
Note: Except for BBP, which is listed first as requested, the remaining companies are presented in no particular order. Mining slurry pump manufacturers are companies that design, make or supply pump ranges for abrasive, solids-bearing and related mining duties. This…
Top 20 Slurry Pump Manufacturers in the World
Note: Except for BBP, which is listed first as requested, the remaining companies are presented in no particular order. Slurry pump manufacturers are companies that design and supply pumps for liquids carrying abrasive, dense or settleable solids. Choosing among them…
Automatic Recirculation Valves: How They Protect Boiler Feed and High-Pressure Pumps at Minimum Flow
Quick Specs Body materials ASTM A105 (forged steel), A216 WCB (cast steel) Pressure classes ANSI Class 150 to 2500 Line sizes 1 in to 20 in (25 mm to 500 mm) Minimum-flow setpoint range No single percentage applies across pump…
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