Mechanical speed adjustment

These pumps are used in oil and gas production for injecting chemicals such as acids and bases, amine gas sweeteners, oxygen scavengers, polymers and proprietary chemicals into process streams.

As the pumps are true positive displacement pumps, flow rate is directly proportionate to input shaft rpm and virtually independent of system discharge pressures. Very precise and repeatable, infinite adjustment of shaft speed is achieved from almost zero rpm, through a simple manual adjust hand wheel. It transmits its highest torque from speed zero, is adjustable in operation and at rest and exhibits linear setting characteristics.

The Wanner mechanical speed variator is ideal for use in explosive environments and is ATEX certified for zones 1 and 21, removing the need for external ATEX control.