Melt Gear Pump Selection 3D Matrix: Viscosity-Pressure-Temperature

When selecting a melt gear pump, it is necessary to comprehensively consider melt characteristics such as viscosity, temperature, and corrosiveness, as well as process parameters such as flow rate, pressure, and heating method, to ensure perfect compatibility with production line layout and drive methods. With 20 years of experience, Zhengzhou Bate provides customized high-efficiency conveying solutions for you.

1. Melt Characteristics:

① Material viscosity is a critical parameter, directly affecting pump flow rate and drive power selection. Generally, the higher the material viscosity, the lower the required speed. For high-viscosity melts, focus on torque, durability, and motor power matching. For low-viscosity materials, prioritize seal design to prevent melt leakage.

② Operating Temperature: Select appropriate materials based on the melt's operating temperature to ensure stable operation of pump components such as the pump body, gears, and bearings under high-temperature conditions.

③ Material Properties: If the material is acidic or corrosive, corrosion-resistant materials must be selected. If the material contains particles or other impurities, high-wear-resistant configurations must be chosen.

2. Process parameter requirements:

① Flow rate: Based on the required melt flow rate in production, such as m³/h or L/h (typically calculated in volumetric flow rate or mass flow rate; if mass flow rate is used, it must be converted to volumetric flow rate), flow rate is one of the primary parameters for determining pump displacement.

② Pressure: Users must provide the inlet and outlet pressures to the melt gear pump manufacturer to match the appropriate pressure rating.

③ Heating: Different process designs require different heating methods. To facilitate user convenience, Zhengzhou Bate Melt Gear Pumps also offer multiple heating options, including electric heating, thermal oil heating, steam heating, or no heating, to meet diverse user requirements.

3. Equipment Installation and Placement Requirements:

① Installation Space: Select an appropriate installation method based on the layout of the production line (e.g., distance between the extruder and mold, installation orientation, etc.).

② Drive method: Melt gear pumps are typically connected to the drive via a universal joint or elastic coupling. The pump's speed is controlled by adjusting the drive's frequency. The drive's installation method can vary depending on actual operating conditions and installation requirements.

In summary, the selection of a melt gear pump primarily depends on the operating conditions and requirements provided by the user. The melt pump manufacturer combines these parameters with their practical application experience to recommend the most suitable model and configuration for the user. Zhengzhou Bate, with over 20 years of experience in the research, development, and production of melt gear pumps, has provided melt conveying solutions for thousands of domestic and international enterprises.

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