high and low pressure gear pumps

high and low pressure gear pumps for hydraulic systems

High and low pressure gear pumps are a common type of multi-stage hydraulic pumps, which optimize the pressure supply to the hydraulic system by integrating high and low pressure chambers in the same pump body.

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Description

High and low pressure gear pumps use an internal gear transmission mechanism to convey liquids, ensuring a simple structure, high reliability, and stable flow. Their flexible design and robust performance make them ideal for a wide variety of industrial, engineering, and agricultural applications.

Technical Parameters

  1. Displacement per revolution: 0.8 – 8 cm³/rev
  2. Direction of rotation: D (clockwise), S (counterclockwise)
  3. Minimum speed: 1000 rpm
  4. Maximum speed: 3500 rpm
  5. Peak pressure: 250 bar

Parameter Details

  1. Displacement per revolution: Indicates small to medium flow rates (0.8 – 8 cm³/rev).

    • Small displacement for high pressure, low flow applications (e.g., fixtures, locking devices).
    • Large displacement for low pressure, high flow scenarios (e.g., rapid hydraulic cylinder extension).
  2. Direction of rotation: D (clockwise) or S (counterclockwise) affects fluid flow direction/output.

    • Forward for normal oil supply.
    • Reverse for circuit switching or reverse oil supply.
    • Ideal for bi-directional hydraulic systems.
  3. Minimum speed: 1000 rpm.

    • Ensures smooth operation in high-speed environments.
    • Supports quick starts, e.g., robotic arms or short-time working equipment.
  4. Maximum speed: 3500 rpm.

    • High-efficiency flow output for fast response systems.
    • Industrial automation, high-pressure washers, emergency hydraulic control.
  5. Peak pressure: 250 bar.

    • Stable performance under high-load conditions.
    • Suited for heavy-duty equipment and high-pressure applications.

Performance Advantages

  1. High efficiency: Up to 3500 rpm for high flow rates and responsiveness.
  2. Versatility: Supports both clockwise and counterclockwise rotation for flexible hydraulic switching.
  3. High pressure capability: Peak pressure up to 250 bar for demanding hydraulic systems.
  4. Flexible displacement: Suitable for both precision control and high-flow operations.

Typical Application Scenarios

  1. Industrial machinery: Hydraulic presses, injection molding, automated assembly lines.
  2. Engineering machinery: Excavators, bulldozers, loaders.
  3. Agricultural machinery: Seeding machines, tillage equipment, hydraulic drive units.
  4. Cleaning equipment: High-pressure cleaners, spray systems.
  5. Marine systems: Hydraulic lifting platforms, helm systems.