Do you know how to calculate the flow rate of a hydraulic pump?

There are two terms: theoretical flow rate and actual flow rate.

The theoretical flow rate is calculated under ideal conditions:

Theoretical Flow = Displacement × Speed

Multiply these values to obtain the theoretical flow rate, commonly expressed in L/min.

Displacement is the volume of fluid delivered per revolution, usually in mL/rev or cm³/rev.

Speed is the pump shaft speed, in rpm or r/s.

Drop your thoughts in the comments below! Or follow RCHC for more—we’ll break it down in the next video!

Parker JCB 7049532007 Triple Hydraulic Pump 40+33+16CC/REV
31/10/2025 4344
Parker JCB 7049532007 Triple Hydraulic Pump 40+33+16CC/REV
View details
Caterpillar D149283 for Case Backhoe Loader 580K 580sk Hydraulic Pump
04/06/2025 3609
D149283 for Case Backhoe Loader 580K 580sk Hydraulic Pump
View details
OEM Parker PGP511 3349116285 Hydraulic Gear Pump
25/08/2025 4915
OEM Parker PGP511 3349116285 Hydraulic Gear Pump
View details
Parker JCB 333/G5389 OEM Hydraulic Gear Pump 36 + 29 CC/REV
24/10/2025 4677
Parker JCB 332/G7134 JCB 333/G5389 OEM Cast Iron Hydraulic Gear Pump
View details