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Differences between low pressure type and high pressure type busbottom gear pump

Because the reactor is mostly in vacuum, the gear pump is often directly connected to the bottom of the reactor by bolts to reduce the required NPSH. At this time, because the polymer also contains a large number of solvents, the material viscosity is not particularly high, about 150 000CP. The pump needs special design to adapt to the low pressure and high temperature resistance at the inlet, so as to offset the thermal expansion of steel at 200 ℃. Therefore, the inlet of the Pudi gear pump is

Composition of High Temperature and High Viscosity Melt Gear Pump

High temperature and high viscosity melt gear pump is mainly composed of pump body, front and rear side plates, two meshing gears, bearings and seals; The space formed by the tooth profiles of two gears, the pump body and the side plate constitutes the feeding area, the conveying area and the discharging area of the pump. Gear is the core part of high temperature melt extrusion gear pump , and its structural forms are various; According to the meshing mode, it can be divided into internal and ex

What is the correlation between the service life of high temperature melt pumps and bearing seals?

High-temperature melt pumps mainly work in high-temperature and high-pressure environments. In the daily maintenance of high-temperature melt pumps, a lot of work takes place on the seal. Therefore, the sealing method and the selection of sealing materials are very important for the pump, which determines the subsequent performance of the high-temperature pump. Whether efficient production operation. The main seals of high-temperature melt pumps are between the melt pump body and the front and r

What are the characteristics of the structure of the rubber melt gear pump?

In the rubber and plastics industry, melt gear pumps are widely used in the pressurization and metering of plastic and rubber melts. However, due to the easy decomposition of rubber and other reasons, the conventional melt pump cannot meet its production needs due to the tendency of over-temperature. In addition, due to the pressure fluctuation of the upstream incoming material, which affects the size and quality of the rubber product, the sleeve of the gear shaft is usually opened with a spiral

What are the factors related to the leakage of the melt pump?

During the use of the melt pump, due to improper operation, operating conditions and other issues, the melt will leak. Zhengzhou Battes melt pump manufacturer analyzes the reasons for the leakage of the melt pump from the following four aspects. 1. Le


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