Special Duty USDA Pumps are designed to meet United States Department of Agriculture (USDA) standards. Ball Valve pump sizes include:
This leak detector works on the principle of conductance, sensing liquid or condensation entering the air side of the pump. It is installed through a boss on the inner chambers. A probe senses pooled conductive liquid, producing a low current (1.2 volt DC),which signals a control unit. Indicator lights signal not only contamination, but also which side is tainted. The control unit can be easily wired to an audible alarm or pump shutdown mechanism if needed. Modular, water-tight construction. Sensitivity range is adjustable from 500 ohms (2000 micro ohms) to 100.000 ohms (10 micro ohms). Available for 115V (032.017.000) and 220V (032.018.000) power supply. This unit must be purchased separately.