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Working principle of large displacement gear pump

The large displacement gear pump developed by Bart is based on the principle that the volume change of the working wheel of the gear pump and the meshing transmission of the working wheel are separated. The working principle of the volume displacement of the large displacement gear pump is as follows. A and B cavity were formed between filling, two side plates and two working wheels. The work wheel 1 is clockwise rotation as the driving wheel. The working wheel is rotated 6 counterclockwise as t

Improvement of mechanical seal for polyester high temperature melt pump

The polyester high temperature melt pump provided by Zhengzhou Bart has the advantages of compact structure, reliable operation, low energy consumption and high volumetric efficiency. The high temperature melt pump has little shearing effect on melt, the most stable flow at high viscosity and high pressure, and no pressure fluctuation at the outlet. It plays an irreplaceable role in polyvinegar production. The pump shaft seal adopts double end bellows mechanical seal. The shortcomings of polyest

High temperature 0.4CC type plastic extrusion melt pump

Melt pump is mainly used for high temperature and high viscosity polymer melt conveying, supercharging and metering. Its main function is to pressurize and stabilize the high-temperature melt from the extruder to keep the melt flow accurate and stable into the extruder head. Nowadays, melt gear pump has been widely used in chemical fiber, granulation, plastic film, sheet, sheet, profiles, pipes, wires and cables, wire drawing, composite extrusion and other production lines. Processing materials

Safe use of polyester melt gear pump

1. The temperature of the heat medium jacket of the pump body can be slightly lower than the heat medium temperature of the front and rear clamping sleeves. Because the viscosity of the melt decreases with the shear rate, the extrusion of the gear and the shear of the bearing will raise the melt temperature by 3-5 degrees Celsius after the pump. Reducing the temperature of the heat medium can prevent the melt from degrading. The data show that the bearing capacity can be greatly increased by red

Influence of melt pump operating pressure on sealing performance

Driving shaft seal is to prevent a large number of melt leakage, for the inlet of a negative pressure melt pump , driving shaft seal also plays a role in preventing outside air into the pump cavity. There are many forms of shaft seal of melt pump. Lantai melt pump drive shaft seal device is mainly composed of shaft sleeve, lubrication spacer ring, sealing filler, labyrinth seal ring. The pressure regulating valve plays a key role in the packing sealing melt pump. When the pressure of the melt pu


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batte melt pump

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