John Blue Company

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Huntsville, AL  |  800-253-2583

With 120+ years of experience, John Blue has gained a reputation as a quality supplier of metering pump products, liquid pumps and chemical feed pumps. We provide dependability and versatility, while serving various industries. An agricultural-oriented company that serves growers worldwide.

Metering Pumps Power Pages

Centrifugal Pumps

Centrifugal Pumps

A centrifugal pump is defined as a hydraulic machine that changes mechanical energy into hydraulic energy by the use of centrifugal force acting on the fluid. This is a machine that uses rotation to enforce velocity on a liquid...

Metering Pumps

Metering Pumps

A metering pump is a precision mechanical device that moves or pumps a measured amount of a fluid or liquid in a predetermined time period to create an accurate and exact volumetric flow...

Vacuum Pumps

Vacuum Pump

A vacuum pump is a piece of equipment capable of generating a partial or low-pressure vacuum by pushing gas or air molecules out of a sealed chamber. A vacuum is a relative state at which the chamber pressure has a lower pressure...

Hose Reels

Hose Reels

A hose reel is a mechanism for storing and use of a hose on a barrel for easy access. It is a system designed to make hoses, cords, flexible tubing, and wire conveniently available for immediate use...

Industrial Lubricants

Industrial Lubricants

A lubricant is a substance that is applied on surfaces that have relative motion in between them. The lubricant reduces friction and wears between the surfaces. However, the lubricant can have other...

Lubrication Systems

Lubrication Systems

Lubrication systems distribute the lubricant to the moving machine parts in contact. Lubricants reduce the friction between sliding or rolling machine elements, such as gears, spindles, bearings, chains, dies, screws, cylinders, valves, and...

Flow Instrumentation
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