Micropump Cavity Style, Suction Shoe & Centrifugal Pumps

Micropump ensures the reliable performance and longevity needed for precise, low flow applications. They are available in 3 technologies – Cavity, Suction Shoe and Centrifugal.

External Gear - Cavity Style

Micropump Cavity style gear pumps consists of two or more rotating gears which interlock together. One of the gears is turned by a power source and drives the other gear(s). The spaces between the gear teeth carry the fluid from the inlet to the outlet. The gear interlace point prevents the fluid from returning to the inlet.

External Gear - Suction Shoe Style

Micropump’s trademark, patented suction shoe pressure-loaded gear pump design features a “suction shoe” that allows the pump to self-compensate for wear. Suction shoe pumps maintain high-volumetric efficiency, even at elevated pressures. Additional benefits include near-zero slip for accurate metering, long life, and more stable performance as pump components wear or thermally expand. The suction shoe pump, unlike any other gear pump on the market, self adjusts on the job for reliable, pulseless flow, and features easier maintenance with less downtime than standard pumps.

Centrifugal

Micropump centrifugal pumps offer a reliable, simple, long-lasting design for higher flow applications. Using the unique magnetic drive technology, centrifugal pumps provide excellent chemical resistance and energy-efficient fluid delivery. Integrated impeller and magnet assemblies reduce the number of rotating parts to maximize pump life.

Centrifugal pumps consist of an impeller rotating within a casing. Liquid directed into the center of the rotating impeller is picked up by the impeller vanes and accelerated to a high velocity. When the liquid in the impeller is forced away from the center of the impeller, a reduced pressure is produced and consequently more liquid flows forward. There is no closed volume, as in a positive displacement pump, therefore producing a steady flow through the impeller. The pump basically increases the Bernoulli head of the flow between the eye and the exit of the pump.

When should I specify Suction Shoe Pump versus a Cavity Style Pump?

Both the suction shoe pumps and the cavity style pumps are among the most well designed pumps in the industry. Each one has its own strengths and its more favored applications. For metering, the suction shoe pump would be preferred for its self adjustment capabilities. The cavity style pump will cover all other applications and also can be used for fluid metering.

Micropump Series

GA Series high-performance pumps provide precise and pulseless flows. Featuring Micropump's patented suction-shoe design, GA Series pumps self-compensate for wear, ensuring near zero slip and a longer pump life. Pumps are available in a wide range of materials and configurations.  The GA Series are our smallest, most compact size but offer a powerful option for your system.

 

GAH Series melds the capabilities of the high-performance GA Series with high system pressure designs. The GAH Series pumps provide precise and pulseless flows from as low as 8.5 mL/min, and can withstand system pressures up to 5500 psi when needed. Featuring Micropump suction-shoe design, GAH Series pumps self-compensate for wear, ensuring near zero slip and long pump life. Pumps are available in a wide range of materials and configurations. 

 

GB Series magnetic drive gear pumps feature a suction-shoe design that self-compensates for wear, ensuring near zero slip and long pump life. Available in standard or custom configurations, GB Series pumps offer the flexibility to meet a wide range of applications with a compact size. Options include two standard gear sizes, an internal bypass, and variety of materials. 

 

GC Series suction-shoe style, magnetic drive gear pumps provide high performance, pulseless delivery in a convenient, compact unit. The GC Series can withstand system pressures to 103 Bar (1500 psi) and offer the highest fluid displacement of suction shoe gear pumps.  The GC Series pumps are a perfect fit for demanding applications with a wide range of available options, materials, and configurations. 

 

GD Series cavity style, magnetic drive gear pumps provide precise, pulseless flow for applications.  GD Series can be optimized for extended life in aggressive environments with the selection of an abrasion resistant cavity style pump chamber and hardened steel gears. The GD Series can also offer an optional high-powered, high system pressure version for pressures up to 103 bar (1500 psi). 

 

GJ Series delivers exceptional pumping performance for any high-precision application. These compact, magnetically driven gear pumps feature a cavity style design with no dynamic seals for applications that cannot tolerate leaks. With benefits like chemical resistance, abrasive fluids pumping, smooth, pulseless delivery, and reverse pumping - GJ Series pumps are available with a wide range of options, as well as in standard and OEM configurations.

 

CA Series Magnetic Drive Centrifugal Pump is ideal for high-flow applications requiring excellent chemical and abrasion resistance. The CA Series utilizes a unique magnetic drive technology, providing a virtually leak-free environment, energy-efficient fluid delivery, and compatibility with a wide range of motors.  The CA Series pump and the Micropump EagleDrive™ provides a very compact package, and the integrated impeller/magnet assembly reduces the number of rotating parts and maximizes pump life. 

 

GAF Series pumps provide low-flow, high-differential pressure, long-life pumps in a small, high-performance package. Featuring Micropump's suction-shoe design, GAF Series pumps self-compensate for wear, ensuring near zero slip and long pump life.  GAF Series combines our patented suction shoe gear pump with our exclusive EagleDrive technology. The result, a compact pumping package that easily integrates into your system design to support differential pressures up to 17 bar (250 psi).

 

GJR Series is newly improved for your severe duty solution. From inception, the GJR has set the standard.  Abrasive fluids, such as pigmented paints and inks or metal loaded fluids, often cause significant pump wear, impacting pumping functionality and dramatically
shortening pump life.  Micropump’s GJR Series pumps use leading materials and design processes to deliver exceptional pump performance and reliability in challenging fluid applications.

 

GLH Series pumps can handle tough fluid handling needs without taking up too much space. This cavity style gear pump provides smooth, pulseless delivery and can withstand system pressures to 103 Bar (1500 psi). GLH Series pumps deliver rugged, reliable performance for any high-precision pumping need. 

 

Micropump Comparison Chart

Series	Displacement	Differential Pressure Max	System Pressure Max	Technology
GA	0.017 ml/rev (X21) 0.042 ml/rev (V21) 0.092 ml/rev (T23)	5.2 bar | 75 psi	21 bar | 300 psi	Suction Shoe
GAH	0.017 ml/rev (X21) 0.042 ml/rev (V21) 0.092 ml/rev (T23)	5.2 bar | 75 psi	345 bar | 5000 psi	Suction Shoe
GB	0.26 ml/rev (P23) 0.58 ml/rev (P25) 1.17 ml/rev (P35)	8.6 bar | 125 psi	21 bar | 300 psi	Suction Shoe
GC	0.811 ml/rev (M23) 1.82 ml/rev (M25) 3.48 ml/rev (M35)	8.6 bar | 125 psi	103 bar | 1500 psi	Suction Shoe
GD	3.48 ml/rev (M35)	6.9 bar | 100 psi	103 bar | 1500 psi	Cavity
GJ	0.316 ml/rev (N21) 0.64 ml/rev (N23) 0.91 ml/rev (N25) 1.23 ml/rev (N27)	5.5 bar | 80 psi	21 bar | 300 psi	Cavity
CA	Recommended Max Speed:  6,000 RPM	na	na	Dynamic
GAF	0.092 ml/rev (T23)	17.2 bar | 250 psi	21 bar | 300 psi	Suction Shoe
GJR	0.316 ml/rev (N21) 0.64 ml/rev (N23) 1.23 ml/rev (N23)	5.5 bar | 80 psi	21 bar | 300 psi	Cavity