Hydraulic Horsepower Formula:
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Hydraulic horsepower is a measure of the power generated by hydraulic systems, calculated based on flow rate and pressure. It represents the mechanical power output of hydraulic pumps and motors.
The calculator uses the hydraulic horsepower formula:
Where:
Explanation: The formula converts the hydraulic power (flow × pressure) into mechanical horsepower units, where 1 horsepower equals 550 foot-pounds per second.
Details: Calculating hydraulic horsepower is essential for sizing hydraulic pumps, determining system efficiency, selecting appropriate motors, and ensuring proper system design in industrial and mobile hydraulic applications.
Tips: Enter flow rate in GPM and pressure in PSI. Both values must be positive numbers. The calculator will compute the hydraulic horsepower required or generated by the system.
Q1: What is the significance of the constant 1714?
A: The constant 1714 comes from the conversion between hydraulic power units and mechanical horsepower (1 HP = 550 ft-lb/sec = 1714 GPM×PSI).
Q2: Can this formula be used for all hydraulic systems?
A: This formula provides theoretical hydraulic horsepower. Actual mechanical horsepower may vary due to efficiency losses in pumps, motors, and system components.
Q3: What are typical GPM and PSI ranges for hydraulic systems?
A: GPM typically ranges from 1-100+ depending on application, while PSI commonly ranges from 500-5000+ in industrial systems.
Q4: How does efficiency affect the actual horsepower required?
A: To find actual motor horsepower needed, divide the calculated hydraulic horsepower by the overall system efficiency (typically 0.8-0.9 for well-designed systems).
Q5: Is this calculation applicable to both hydraulic pumps and motors?
A: Yes, the same formula applies to both. For pumps, it calculates output hydraulic power; for motors, it calculates input hydraulic power requirement.