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Bosch Rexroth Gear Pump PGH series

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Gear pump is a rotary pump which relies on the change and movement of working volume between pump cylinder and meshing gear to transfer liquid or make it pressurized. When the gear rotates, the volume of the space on the side of the gear detached becomes larger from small to form a vacuum, and the liquid is sucked in. The space on the meshing side of the gear decreases from large to small, and the liquid is squeezed into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure of the discharge port of the gear pump is entirely determined by the resistance at the outlet of the pump.

External meshing gear pump is one of the most widely used gear pumps. Generally speaking, gear pump is usually referred to as external meshing gear pump. It is mainly composed of driving gear, driven gear, pump body, pump cover and safety valve. The sealing space of pump body, pump cover and gear is the workshop of gear pump. The axles of the two gears are respectively installed in the bearing holes on the two pump covers, and the driving gear shaft extends out of the pump body and is driven by the motor to rotate. The external gear pump has the advantages of simple structure, light weight, low cost, reliable operation and wide application.

Gear pump is simple and compact in structure, small in volume, light in weight, good in workmanship, cheap in price, strong in self-suction, insensitive to oil pollution, wide in speed range, able to withstand impact load, easy to maintain and reliable in operation. But the radial force is unbalanced, the flow pulsation is big, the noise is big, the efficiency is low, the parts interchangeability is bad, after wearing is not easy to repair, can not be used as variable displacement pump.

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Address : 4 Pemimpin Drive #03-09, Lip Hing Industrial Building Singapore 576147

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