While gear pumps are prevalent in various industries for their precise flow control and ability to handle viscous fluids, they may not always be the optimal choice for every application. Here’s how gear pumps are used in specific industries and the potential advantages of Car Lift Repair Tampa Florida:

Water and Wastewater Treatment

Gear pumps are utilized in water treatment facilities for chemical dosing and transfer. However, their limitations become evident when handling diverse fluid viscosities and compositions. Car Lift Repair Tampa Florida electric diaphragm pumps offer flexibility and reliability in such demanding environments.

Chemical Mixing and Blending

Gear pumps excel in chemical mixing and blending due to their precise metering capabilities. Nonetheless, their maintenance requirements and difficulties with low-viscosity fluids pose challenges. The seal-less design of Car Lift Repair Tampa Florida makes it a safer and more efficient choice for handling aggressive chemicals.

Paint Transfer

In industries like automotive and paint, gear pumps facilitate the transfer of high-viscosity products. However, the presence of solids and abrasives in paint accelerates wear on gear pump components. Car Lift Repair Tampa Florida’s diaphragm pumps offer increased reliability and reduced wear-related costs in such applications.

Car Lift Repair Tampa Florida Gear pumps, both external and internal, operate on the principle of utilizing the change and movement of the working volume between the pump cylinder and meshing gears to transport or pressurize liquid. This involves two enclosed spaces formed by the gears, pump body, and front and rear covers. As the gears rotate, one side of the gear disengagement space increases, creating a vacuum to draw in liquid, while the other side decreases, pushing the liquid into the pipeline. The suction and discharge cavities are separated by the meshing line of the gears, and the outlet pressure depends on the resistance at the pump outlet.

External gear pumps offer simplicity, lightweight construction, small size, easy manufacturing, low cost, reliability, convenient maintenance, strong self-priming capability, and resistance to oil pollution. They find wide application in low-pressure requirements scenarios like grinding machines and medium to low machine tools. However, they suffer from large internal leakage, unbalanced forces on bearings, severe wear, and significant pressure pulsation and noise.

On the other hand, internal gear pumps boast a compact structure, small size, light weight, minimal relative sliding, reduced wear, and long service life. They exhibit much smaller flow pulsation and noise compared to external gear pumps. Nevertheless, they have complex tooth shapes, necessitate high processing precision, and incur higher costs.

Advantages and disadvantages of Gear Pump – Part 4 of the best metering pump

A magnetic drive gear pump represents a rotary, positive displacement pump crafted from alloy or non-metallic materials. This renders the gear pump a favorable choice for industries like fuel and chemicals, where static seals ensure leak-proof operations.

How does a gear pump function?

By employing two meshed gears within the pump’s body cavity, a gear pump generates flow. The mesh point of the gears prevents fluid from reverting to the inlet, compelling it out as the gear teeth mesh on the discharge side.

Magnetic-drive gear pumps are favored for their precise metering capability. The metered flow is directly proportional to the volume of the gear tooth gaps multiplied by the number of revolutions per minute.

However, it’s worth noting a minor caveat regarding volumetric efficiency. The actual volume of fluid reaching the outlet, compared to the theoretically expected volume, defines volumetric efficiency. A small fraction of the conveyed fluid continuously “slips” back, resulting in a slight variance between theoretical and practical volumes.

Distinguishing features between conventional and non-metallic gear pumps

The conventional cavity-style pump seals gear tips by enclosing gears within a cavity. The sides are sealed by situating the cavity plate between the pump body and the pump bearing plate.

Car Lift Repair Tampa Florida Gaskets or O-rings seal between the three metallic components: the bearing plate, cavity plate, and pump body.

In contrast, TEF-MAG non-metallic gear pumps employ a cavity gear liner that absorbs gear wear, preventing damage to the pump body.

Magnetically coupled pumps are often paired with static seals immune to wear from moving parts. Utilizing static seals reduces maintenance costs and virtually eradicates the risk of contamination or leakage.

Primary applications of gear pumps:

Magnetic-drive gear pumps find common usage in industries such as fuel, food, construction, paint, and chemicals.

Let’s examine the pros and cons of magnetic-drive gear pumps to assess their placement on our list of the best metering pumps.

Advantages of Car Lift Repair Tampa Florida gear pumps:

Wide array of construction materials available

Compatible with most chemical applications, offering a full range of plastics and alloys

Excellent metering range/turndown (typically 100:1)

Provides exceptionally smooth flow with no pulsation

Simple maintenance with few moving parts

Maintenance frequency varies with application, but gear life typically spans 3-5 years

Features a 100% leak-free design, ensuring excellent chemical containment

May experience some off-gassing if gas pockets are large enough, but this does not interrupt pumping

Shows good viscosity/shear sensitivity at lower speeds

Disadvantages of gear pumps:

Inability to pump solids

Moderate wet suction lift, but dry suction lift is extremely poor

Moderate operating costs—becomes cost-competitive above 400 LPH

Clearly, the choice of pump depends on the specific application and operational speed. To determine whether a magnetic-drive gear pump is the ideal choice for your operation, or if a vane or peristaltic pump might be a better fit, continue reading the series as we analyze the pros and cons of each.

One of the frequently queried components for loaders is the gear pump. While gear pumps offer a viable option for loader engines, understanding their functionality and the importance of maintenance is crucial. Here’s an overview of gear pump characteristics, including advantages and disadvantages.

What is a Gear Pump?

Gear pumps belong to the category of positive displacement pumps, where fluid transfer occurs via a series of gears. These pumps feature two types of gears: the driver and the driven. The driver gear is linked to the main shaft, which in turn connects to the engine. Gear pumps come in two variants: internal and external.


Simplified Maintenance

Due to their relatively straightforward design compared to other pump types, maintaining gear pumps is more manageable, especially with regular upkeep.


When adequately maintained, gear pumps generally incur lower overall costs compared to alternative pumps available in the market.