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Guide to Choosing the Right Gear Pump for Your Needs

17 September, 2025

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In industries that require fluid transfer, selecting the right pump is an important step. One highly efficient type of pump, especially for pumping viscous liquids, is the gear pump. This pump offers an efficient and precise solution for various applications.

However, with many options available, how do you choose the best fit? This article serves as your guide to understanding different types of gear pumps from Crocodile and finding the most suitable one for your application.

About Gear Pumps

What Is a Gear Pump?

A gear pump is a type of positive displacement pump that uses the rotation of two gears (internal or external) to move fluid. Liquid enters through the suction side, gets trapped between the rotating gears, and is then pushed out through the discharge side of the pump.

Working Principle and Advantages

This working principle makes gear pumps ideal for accurately transferring viscous liquids. Advantages include a simple design, stable flow, and the ability to operate at high pressure.

Consequences of Choosing the Wrong Pump

Selecting an unsuitable gear pump can cause various problems, ranging from inefficiency in fluid transfer, excessive energy consumption, to damage to the pump itself. This negatively impacts operational costs.

Factors to Consider

It is important to consider several factors such as the viscosity of the fluid to be transferred, required flow capacity, working pressure, and pump material that must be compatible with the characteristics of the fluid.

Introducing Crocodile Brand as a Gear Pump Manufacturer

Crocodile is a leading manufacturer known for high-quality products. The strength of Crocodile gear pumps lies in their robust construction and precise design that ensure optimal performance and long service life.

Every Crocodile product, including gear pumps, is produced with high-quality standards to guarantee reliability and safety. This makes Crocodile one of the most trusted gear pump brands in the market.

Crocodile Gear Pump Types

Crocodile offers various types of gear pumps, each designed for specific needs. Here are some types you should know:

  1. Gear Pump Type GC

The Crocodile GC-80 3" is a sturdy transfer pump suitable for moving viscous liquids. With a 3-inch suction and discharge diameter and a capacity of 455 L/min, this pump is ideal for the oil processing industry. Its installation uses a pulley system.

  1. Gear Pump Type GL

The Crocodile GL-50 2" is designed for low-viscosity fluids. Although it uses the same mechanism, this pump is better suited for transferring light oils with a capacity of 150 L/min. It is made from cast iron and directly mounted on the engine.

  1. Gear Pump Type KM

For the food and chemical industries, the Crocodile KM-50 2" is the right choice. Made from stainless steel, it is ideal for viscous fluids such as soy sauce, chili sauce, cooking oil, and chemicals.

  1. Gear Pump Type KCB

If you need a pump with large capacity, the Crocodile KCB-960 4" is the answer. With a capacity of 960 L/min and a 4-inch diameter, this pump is perfect for transferring all kinds of oil on a large scale. It is mounted directly on the engine and its speed can be adjusted.

Conclusion

Choosing the right gear pump is a smart investment for operational efficiency. With this guide, you can recognize Crocodile’s gear pump types, from GC, GL, to KCB and KM, and find the one that best fits your needs. To get quality products from Crocodile, contact the nearest dealer in your city today.

 

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