VAR-SPE SERIE K2 with easy handwheel control for serie HDA chemical injection pump, ensure a minimal chance of failure.

Turning the rate adjustment dial of the variator counterclockwise will increase the pump stroke rate. In this type of pumps the variator has been preset to limit rotation to a single direction.

This ensures the pump will stroke at its minimum rate with the variator dial in the full clockwise position.

The variator control knob can be adjusted while the unit is off without damage to the unit.