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Gear Pumps
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Hydraulic Gear Pumps

12 years of experience in the production of hydraulic components

Products

Hydraulic Valves, Electric Motors for Hydraulic Pump 40,000-50,000 pcs per month

Products

Hydraulic Gear Pumps 10,000 pcs per month

External Gear Pumps
Single Gear Pump
HGP Series
External Gear Pumps (Single Pump)

Explore NOAH’s HGP Series single high-pressure gear pumps (HGP-1A, 2A, 3A) with Viton seals and oilless bearings for reliable high-temp, high-pressure operation. Contact us for a demo.

  • Viton oil seal parts can withstand high-temperature operation.
  • Special oilless bearings are designed to operate at high pressures.
  • Supports positive rotation and reversal.
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  • HGP-1A Single Gear Pumps
    HGP-1A Single Gear Pumps
  • HGP-2A Single Gear Pumps
    HGP-2A Single Gear Pumps
  • HGP-3A Single Gear Pumps
    HGP-3A Single Gear Pumps
Double Gear Pump
HGP Series
External Gear Pumps (Double Pump/Tandem Pump)

The double high-pressure gear pump utilizes a dual-pump integrated design. It features a high-grade aluminum alloy body, equipped with oilless bearings and Viton oil seals, offering resistance to high...

  • Ultra-high efficiency: Total efficiency of over 95%, significantly reducing energy consumption and optimizing system operating costs.
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  • HGP-11A Double Gear Pumps
    HGP-11A Double Gear Pumps
  • HGP-22A Double Gear Pumps
    HGP-22A Double Gear Pumps
  • HGP-33A Double Gear Pumps
    HGP-33A Double Gear Pumps
Ultra-Silent Circular Arc Gear Pumps
Ultra-Silent Circular Arc Gear Pumps
US Series
Ultra-Silent Circular Arc Gear Pumps

Noah's US series ultra-silent circular arc gear pumps are industrial hydraulic power components designed for applications requiring low noise, high efficiency, and long lifespan.

  • Pressure pulsation suppression: Patented flow channel structure and optimized oil suction area reduce pressure pulsation to ≤±1.5%.
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  • US28: Shaft and flange types and dimensions
    US28: Shaft and flange types and dimensions
  • US33: Shaft and flange types and dimensions
    US33: Shaft and flange types and dimensions
  • US38: Shaft and flange types and dimensions
    US38: Shaft and flange types and dimensions
  • US47: Shaft and flange types and dimensions
    US47: Shaft and flange types and dimensions
Internal Gear Pumps
Single Gear Pump
HL Series
Internal Gear Pumps (Single Pump)

Our HL series single internal gear pumps features high efficiency, low noise, and high pressure, designed for precise flow control and compact systems. Ideal for industrial applications.

  • Employs axial and radial pressure compensation design, maintaining high volumetric efficiency even at low speeds and low viscosities.
  • Ultra-low noise, achieved through high-strength cast iron and a unique internal silencing design.
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  • HL0 Single Gear Pumps
    HL0 Single Gear Pumps
  • HL1 Single Gear Pumps
    HL1 Single Gear Pumps
  • HL2 Single Gear Pumps
    HL2 Single Gear Pumps
Double Gear Pump
HL Series
Internal Gear Pumps (Double Pump/Tandem Pump)

The double pump (tandem pump) consists of two single pumps assembled in series. It features a common inlet port and two outlet ports that can supply two independent circuits. Various displacements can be achieved by combining different pump series.

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  • HL10 (10R) Double Gear Pumps
    HL10 (10R) Double Gear Pumps
  • HL10 (20R) Double Gear Pumps
    HL10 (20R) Double Gear Pumps
  • HL11 Double Gear Pumps
    HL11 Double Gear Pumps
  • HL21 Double Gear Pumps
    HL21 Double Gear Pumps
How does the high-pressure gear pump perform under high-temperature and high-pressure conditions in metallurgy, die-casting, and similar applications?

The high-pressure gear pump uses a high-grade aluminum alloy body and is equipped with oil-less bearings and Viton oil seals. It can operate normally in both forward and reverse directions under high temperatures and pressures without leakage, offering superior high-temperature resistance.

In a hydraulic system, how does the high-pressure gear pump ensure flow stability?

The high-pressure gear pump employs a dual-pump collaborative design, integrating two independent pump bodies. This allows it to simultaneously provide stable flow to multiple hydraulic circuits, optimizing system efficiency and ensuring uniform, continuous fluid delivery, adapting to the precise control needs of multi-circuit hydraulic systems.

When this ultra-silent gear pump operates in a surgical room environment, will the noise affect the doctor's operation?

No. Our silent gear pump utilizes helical gear progressive meshing technology, with operational noise as low as 55-60 dB(A), making it particularly suitable for noise-sensitive surgical rooms and medical environments.

In CT or MRI equipment, is the silent pump's body structure suitable for installation in confined spaces?

Yes, it is suitable. This series of pumps features a compact structure and small size, making it easy to install in confined spaces. Its silent noise reduction design makes it very suitable for equipment environments like MRI and CT, which have strict space and noise requirements.

How does an internal gear pump work?

An internal gear pump consists of an inner gear and an outer gear, separated by a crescent-shaped divider. The inner gear rotates within the outer gear, trapping fluid in the spaces between the gears and the divider, moving it from the inlet to the outlet.

What is the maximum speed of an internal gear pump? In what scenarios are high speeds applied?

The maximum speed is 3600 r/min. High speeds are typically suitable for high-viscosity fluids, precision transfer and metering, and oil and gas applications.

Focus on the design and manufacturing of hydraulic pumps and valves

NOAH offers a range of hydraulic products including hydraulic gear pumps, hydraulic vane pumps, hollow shaft electric motors for hydraulic pump, and hydraulic valves. We are committed to providing one-stop service to meet the demands of diverse industries such as construction machinery, machine tools, mining and metallurgy, automotive, and agricultural machinery.

Products
Advanced Machining Capabilities

We've made significant investments in internationally leading precision processing equipment, establishing a truly modern manufacturing platform.

  • Advanced Machining Capabilities
  • Advanced Machining Capabilities
  • Advanced Machining Capabilities
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Get in Touch

Please don't hesitate to contact us if you have any questions or concerns about hydraulic components.

Email: noay8hydraulic@gmail.com
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