A high pressure gear pump is a type of positive displacement pump that uses the meshing of gears to move fluids. The pump typically consists of two or more gears—commonly referred to as the drive gear and the driven gear—rotating inside a closely fitted casing. As the gears rotate, fluid is trapped in the spaces between the gear teeth and the casing, transporting it from the inlet to the outlet side, creating a steady flow.

Unlike centrifugal pumps, gear pumps deliver a fixed volume of fluid per revolution, making them particularly suited for high pressure applications where precise flow rates are necessary.

As the name suggests, one of the defining advantages of these pumps is their ability to operate under high pressure conditions, often reaching pressures above 200 bar (2900 psi) or more depending on design and materials. This capability allows them to handle demanding tasks such as hydraulic power generation, injection molding machines, and high-pressure lubrication systems where maintaining consistent pressure is critical.

The robust gear and housing construction ensures that the pump can withstand and maintain these high pressures without significant wear or deformation.

High pressure gear pumps provide a uniform and predictable flow, which is essential in industrial processes requiring accurate fluid metering and dosing. Because these pumps are positive displacement devices, the output flow is directly proportional to the rotational speed, offering linear control over flow rates.

This characteristic is particularly beneficial in applications like fuel injection, chemical dosing, and precision lubrication, where consistency and repeatability are paramount.

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PTOs are designed to be durable, withstanding harsh operating conditions in various environments, from construction sites to farms. Their robust construction ensures they can handle high levels of torque and power transmission without failure.