Drum Pumps

Allenair drum pumps are designed around our tandem cylinder design joining two cylinders togeth- er with a common head and rod. The total pump unit is divided into two sections; the drive section and the pump section. By utilizing our Valve-In-Head cylinder as the air motor, the rod and pump piston will move in unison, creating suction on the lower half of the piston and pressure on the up- per half. On the down stroke the check piston moves freely through the fluid in the dip tube.

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Dispensing Pumps

An air operated piston transfer pump.
Transfer pumps are designed specifically to transfer bulk liquids, oils, hydraulic fluids, acidic, caustic and many other types of liquids.

Description:

The Allenair air driven pumps are designed around our tandem cylinder design joining two cylinders together with a common head and rod. The total pump unit is divided into two sections; the drive section and the pump section. By utilizing a four-way valve to operate the drive cylinder, the common rod and pump piston will move in unison, creat- ing suction on the up stroke and pressure on the down stroke. An example of this action is that of a syringe.