Pump level and cross over controls.

The level sensor detects that the drum is empty the system automatically switches the air out of the drive cylinder and directs it through a whistle.  The whistle provides an audible alarm that the drum needs to be replaced.  The main benefit of this system however is that the air is diverted out of the drive cylinder and the pump stops in mid stroke.  This is provides several benefits.  First the air motor will not "run away" and burn out when the container is empty.  The second benefit is that the whistle can be removed and the air line can be used to easily connect a back up/crossover pump. The third and most important benefit is that no air is pumped into the system.  Keeping air out of the system increases metering accuracy, improves production quality, and eliminates hours of bleeding material (waste) out of the system to remove the entrapped air at every container change.

Mini Pumps
		Mini pumps supply low - high viscosity materials and are available in steel, stainless steel and hard metal. Follower plates/sealing ring sizes are available to automate material feed from 40mm cartridges, 1Kg and 1 gallon cans. Low level controls and alarms allow for crossover assemblies that provide 24/7 service from small containers