AL Series Rotary Lobe Displacement Pumps

AL Series rotary lobe pumps are an economical alternative to rotary piston pumps in certain applications. AL pumps offer a stainless steel gear case and a front loading seal design with superior CIP-ability and ease of maintenance. All AL pumps are EHEDG certified and in conformance with 3A sanitary standards.

Ease of maintenance, CIP performance, uptime reliability, and economical pricing are key characteristics of Ampco's AL Series of rotary lobe positive displacement pumps, making this series a favorite of maintenance departments and plant managers alike. Every new positive displacement pump Ampco manufactures is supplied with a 304 stainless steel gear case, making these pumps popular with inspectors, as well.

The AL Series features a unique front-loading seal design to provide easier cleaning and reduced maintenance time. Rotors and seals can be effortlessly accessed by removing the front cover while connections remain in place.


The AL Series is well suited for a variety of applications including food, dairy, beverage and pharmaceutical applications. These pumps accommodate viscosities ranging from l to 1,000,000 centipoise. Self-priming capabilities up to 12 feet and flow rates up to 230 GPM make this a versatile, yet economical, pump for a variety of processing applications.