#### About DPPPs Rules - How to Calculate HHP?

HHP means Hydraulic Horsepower, it is calculated as pressure times flow rate and divided by a coefficient.

Here’s the formula:

HHP=P*Q/1714

HHP is in unit of hp, it reflects output of the pump.

P is the pressure with unit of psi.

Q is the flow rate with unit of GPM.

Take Jade product J15001 pump for example, the pump has a flow of 92 GPM at 35 psi, then its HHP is calculated as 35*92/1714=1.88

Note: above psi and GPM data is based on test performed in Jade’s own lab. Should any discrepancy occur between this data and other test result from any authoritative lab, the data from the authority shall prevail.

In kilowatts, the formula of the hydraulic power should be HkW=P*Q/2298

HkW is in unit of kW, it reflects output watts of the pump.

P is the pressure with unit of psi.

Q is the flow rate with unit of GPM.