How much is 1 horsepower equivalent to in terms of GPM and psi?

One horsepower is equivalent to a specific relationship in terms of gallons per minute (GPM) and pounds per square inch (psi) when it comes to hydraulic systems. The correct formula states that 1 horsepower can be represented as GPM multiplied by psi, with a conversion factor that takes into account the units used.

The conversion factor of 0.0007 is derived from the relationship between horsepower, flow rate in GPM, and pressure in psi, making it easier to express power in hydraulic terms. Specifically, 1 horsepower is defined as 33,000 foot-pounds per minute. In hydraulic applications, when you multiply flow rate (GPM) by pressure (psi), that product gives you the hydraulic power in foot-pounds per minute. To convert that to horsepower, the factor of 0.0007 is used.

Thus, the formulation GPM x psi x 0.0007 accurately reflects the conversion of hydraulic power into horsepower, making it clear that this is a standard method of expressing power generated in hydraulic systems. Understanding this relationship helps in the design and analysis of systems, ensuring efficiency and proper operation when using hydraulic machinery.