Description
Description: Hydraulic pumps produce pressure in hydraulic system, which enables movement of hydraulic actuators (including cylinders). Gear pumps are one type of hydraulic pumps which are made out of 2 gears which generate the hydraulic pressure on output port. Hydraulic gear pumps are usually connected to electric motors with a shaft which turns the gears inside the pump. Each gear pump has a fixed amount of fluid which it can move from input port to output port in one revolution. This quantity of fluid is called displacement of gear pump.
Usage: Hydraulic gear pumps are used in agricultural machinery (like tractors) , industrial machinery, lifting equipment (like forklifts) and other heavy machinery which uses hydraulic systems to move, crush or lift objects.
Features:
Pump displacement (cm³/revolution): 28
Designated group: Gear pump group 3
Rated pressure: 250 bar
Maximum pressure: 280 bar
Minimum speed: 700 revolution/min
Maximum speed: 2500 revolution/min
Taper of driving shaft: 1:8
Location of driving shaft: through the front cover
Required oil viscosity:
- 6 mm²/s … 200 mm²/s permissible range
- 20 mm²/s … 60 mm²/s recommended range
Required degree of filtration: 25 µm
Operating temperature of hydraulic oil:
- -25 °C … 80 °C permissible range
- 30 °C … 50 °C recommended range
Inlet pressure: 0,8 bar … 2,2 bar
Recommended oil speed at inlet: 0,3 m/s … 1,3 m/s
Recommended oil speed at outlet: 2 m/s … 5,5 m/s
Connection of inlet port: hole diameter 19 mm, 4 fixing holes sizes M8
Connection of outlet port: hole diameter 19 mm, 4 fixing holes sizes M8
Dimensions of gear pump variant clockwise rotation with European flange:
Dimensions of gear pump variant anticlockwise rotation with European flange:
Additional information
| Rotation | |
|---|---|
| Variations of this product | HIT30A28XF068NP: anticlockwise HIT30C28XF068NP: clockwise |
