Example: What is the fluid velocity of 15 GPM flowing through a 3/4 inch I.D. hydraulic hose?

Example: Pressure before a restriction is 1,500 PSI and pressure after is 1,000 PSI. Pressure drop = 1,500 - 1,000 = 500 PSI. At 30 GPM, approximately 8.75 HP is being lost and converted into heat.

Example: A 30 gallon reservoir with 15 GPM of system flow has a theoretical turnover time of 2 minutes, or 30 reservoir turnovers per hour. A traditional reservoir sizing guideline for a system without active oil cooling would be approximately 45 to 75 gallons.