The high pressure double gear pump HGP-22A is available in 4 sizes. Flow rates up to 108 lpm and high pressures up to 250 bar. Can be forward, reverse, forward and reverse.
The following are the precautions for the use of double gear pumps:
1. For hydraulic oil, please use ISO NG32~68 equivalent R&O type and wear-resistant products (viscosity index should be above 90); in addition, please use viscosity in the range of 20~150mm2/s during operation.
2. The temperature range of hydraulic oil is 5~65℃. When the oil temperature is lower than 5°C at startup, the hydraulic oil needs to be heated, or the oil temperature reaches 5°C during low-pressure operation, and the ambient temperature is within 0--60°C. .
3. The suction pressure is -0.03~+0.03MPa{-0.3~+0.3kgf/cm2}, and the flow rate of the suction port is within 2m/sec.
4. Avoid installing the suction port on the bottom of the pump. In addition, when the rotation speed exceeds 1800min-1, the IN inlet piping is installed on the shaft side and the head side, respectively.
5. The use of the transmission coupling is the same as that of the pulley and the gear. The shaft end avoids applying radial and axial loads; the installation direction is the horizontal direction of the pump shaft.
6. Use an oil suction filter with a filtration accuracy of about 100um (150 mesh holes), and install a 25um online filter on the pipeline returning to the oil tank.
7. The pollution degree of hydraulic oil should be controlled within NAS10 level. In addition, care should be taken to prevent mixing with water or other foreign matter to prevent discoloration of the oil. When the oil is cloudy, it means that air bubbles are mixed in. When brown, the oil has deteriorated. .
For more information, please click here: Hydraulic Gear Pump Manufacturer.https://www.daye-hydraulic.com/