Rotary gear pumps are widely used positive displacement pumps that move fluids by rotating gears. They are commonly found in various sectors, such as industrial manufacturing, chemical processing, and food and beverage production.
Designed with minimal moving parts, rotary gear pumps help reduce the risk of mechanical failure while delivering consistent performance. Their flexibility and ability to handle a range of fluids make them suitable for many industrial applications.
This blog will give an overview of how these pumps function, their uses, and the key factors to consider when selecting a rotary gear pump supplier.
How Rotary Gear Pumps Work: The Mechanics of Fluid Movement Through Gear Systems
These pumps are specifically equipped with two or more gears meshed together to create a sealed cavity. With rotation, these gears trap fluid within the cavities, which lie between the pump casing and gear teeth. The trapped fluid then moves from the inlet to the outlet portion of these pumps.
Here is a detailed working mechanism:
1. Fluid Trapping
Cavities are created between the pump casing and teeth as the gears rotate.
2. Suction and Displacement
The gears on the inlet side of the pump separate to create a vacuum, which draws the fluid out of the cavities. The continuous movement of the gears triggers cavities to move the inner fluid across the pump casing. The gear mesh reduces the cavity volume on its outlet side and pushes the fluid out.
3. Crescent Seal
The internal gear pump has a crescent-shaped seal that separates the inlet and outlet ports, preventing fluid from flowing back.
4. Smooth Flow
The gears rotate continuously, resulting in smooth and non-pulsating fluid flow.
5. High Viscosity Fluids
Gear pump suppliers provide specialized pumps for viscous fluids, maintaining close tolerances between casing and gears for effective fluid displacement.
Common Applications: Industries that Rely on Rotary Gear Pumps
Rotary gear pumps are used across a wide range of industries. A few important ones:
- Chemical processing
- Oil and gas
- Water and waste-water management
- Marine industries
- Food and beverages
- Pharmaceuticals
- Textile industries
- Automotive
- Paints and Coatings
Rotary gear pumps play key roles in these industries, transferring fluids, handling viscous materials, and lubricating systems.
Key Factors When Choosing a Gear Pump Supplier
Assessing flow rate, fluid properties, pressure requirements, material compatibility, and energy efficiency are important factors to consider when choosing a rotary gear pump supplier. Others include:
- Technical Assistance – Go with a rotary gear pump supplier that offers continuous technical support and solutions.
- Ownership Cost – Consider the total cost involved, including maintenance costs, purchase price, and energy consumption.
- Delivery Time – The supplier must adhere to agreed delivery schedules.
All-Purpose Rotary Gear Pumps for Positive Displacement
Rotary gear pumps stand among the most reliable fluid-handling devices in the industry today. Their impressive volumetric efficiency, compact design, and exceptional versatility make them ideal for transporting industrial fluids across various management systems. With self-priming capabilities and durability even when handling viscous materials, these pumps deliver consistent flow rates that maintain business operations.
At Vissers Sales Corp., Canada’s premier liquid handling distributor, we bring expert knowledge and deep industry experience to every interaction. Our comprehensive selection includes Self-Priming Water Pumps and Mag-Drive Pumps, all sourced from respected brands that meet the highest quality standards.
Connect with Vissers Sales Corp. today to discuss your rotary gear pump supplier requirements and see the difference our custom solutions can make for your chemical or industrial applications.
