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Gear Pump: Working Principle, Types, and Industrial Applications

A gear pump is a widely used positive displacement pump designed for efficient fluid transfer. As a reliable industrial gear pump, it is especially suitable for handling high viscosity fluids, such as oil, resin, and adhesives.

Gear pumps are known for their durability, simple structure, and stable performance.

Gear Pump Working Principle

A gear pump operates using two rotating gears:

  • The driving gear is powered by a motor
  • The driven gear rotates simultaneously
  • Fluid is drawn in when gears separate
  • Fluid is discharged when gears mesh

This process ensures a steady and continuous flow, making gear pumps ideal for industrial use.

Types of Gear Pumps

External Gear Pump

  • Most common type of industrial gear pump
  • Ideal for fuel oil and lubrication systems

Internal Gear Pump

  • Lower noise and smoother flow
  • Suitable for high viscosity fluids

Advantages of Gear Pumps

  • Excellent for High Viscosity Fluids

A perfect high viscosity gear pump solution.

  • Stable Flow Output

Provides consistent and low-pulsation flow.

  • Strong Self-Priming Capability

No need for additional priming systems.

  • Low Maintenance

Simple structure reduces maintenance costs.

Gear Pump Applications

Gear pumps are widely used in:

  • Oil & Gas: gear oil pump for fuel transfer
  • Chemical Industry: corrosive liquid handling
  • Food Industry: syrup, edible oil
  • Paint & Adhesive Industry: high viscosity materials

How to Choose the Right Gear Pump

Key selection factors include:

  • Fluid viscosity
  • Operating pressure
  • Flow rate
  • Material (e.g., stainless steel gear pump)

Choosing the right gear pump improves efficiency and lifespan.

Professional Gear Pump Manufacturer & Supplier

We are a trusted gear pump manufacturer and supplier, offering:

  • Industrial gear pumps
  • Custom gear pump solutions
  • Stainless steel gear pumps
  • Global technical support

Contact us today for a quote and expert consultation!

Taizhou Dengxu Hydraulic Machinery Co., Ltd. has always been committed to the research and production of hydraulic vane pumps and gear pumps.

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