High Temperature Melt Pump

High-temperature melt pump is an indispensable equipment for conveying, pressurizing and melt metering of high-temperature and high-viscosity polymer melt.

Compared with other types of pumps, high-temperature melt pumps have compact structure, reliable operation, low energy consumption, high volumetric efficiency, small shearing effect on the melt, stable flow rate at high viscosity and high pressure, and no outlet pressure fluctuation.

The pump's unique advantages and key role in the process make it play an irreplaceable role in polyester production.

Melt gear pump consists of pump casing, front and rear side covers, gear shaft, sliding bearing and shaft seal.

Melt gear pumps are positive displacement pumps that rely on the change in working volume caused by the mutual meshing of the main and driven gears to transport melt.

The working volume is composed of the pump body, the tooth groove of the gear and the bearing with the function of side plate.

When the gears rotate, the melt enters the tooth grooves of the two gears in the suction chamber. As the gears rotate, the melt is brought into the discharge chamber from both sides. The gears mesh again, so that the melt in the tooth grooves is squeezed out of the discharge chamber and pressured to the outlet pipe.

As long as the pump shaft rotates, the gear will force the melt to the outlet side, so the pump outlet can reach a very high pressure, and the flow rate has basically nothing to do with the discharge pressure.

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