Although the structure of YUKEN vane pump is quite different, there are many similarities in installation and use. Notes on hydraulic pump connection.

1. The hydraulic pump can be installed with support or flange. The pump and prime mover shall adopt common foundation support. The flange and foundation shall have sufficient rigidity. Special attention should be paid to the plunger pump with a flow rate greater than (or equal to) 160L/min, which should not be installed on the oil tank.

2. The hydraulic pump and the prime mover output shaft shall be connected by elastic coupling. It is forbidden to install pulley or gear on the hydraulic pump shaft to drive the hydraulic pump. If pulley or gear must be used to connect with the pump, a pair of bearings shall be added to install pulley or gear. The coaxiality error between the bearing and the pump shaft shall not be greater than Φ 0.05 mm.

3. The oil suction pipe shall be as short, straight, large and thick as possible. Generally, the oil suction pipe shall be provided with a coarse filter with nominal flow rate not less than 2 times of the pump flow rate (the filtering accuracy is generally 80 ~ 180μ m). The drain pipe of the hydraulic pump shall be directly connected to the oil tank, and the back pressure of oil return shall not be greater than 0.05MPa. The oil suction pipe port and the oil return pipe port of the oil pump shall be below 200mm of the lowest oil level of the oil tank.

4. The inlet and outlet of the hydraulic pump should be installed firmly, and the sealing device should be reliable, otherwise the phenomenon of air suction or oil leakage will occur, affecting the performance of the hydraulic pump.

5. The self-priming height of the hydraulic pump shall not exceed 500mm (or the vacuum degree of the inlet shall not exceed 0.03MPa). If the oil is supplied by the oil replenishing pump, the oil supply pressure shall not exceed 0.5MPa. When the oil supply pressure exceeds 0.5MPa, the pressure-resistant sealing ring shall be used instead. For plunger pumps, reverse flow and self-priming shall be adopted as far as possible.

6. Before installing the hydraulic pump, check whether the depth of the installation hole is greater than the shaft extension length of the pump to prevent the phenomenon of jacking, otherwise the pump will be burnt down.

Taizhou Hongyi Hydraulic is a reliable vane pump factory with high quality and reasonable price.