SAFETY VALVE FOR A BACKFLUSHING AND TEAT DIP APPLICATOR SYSTEM

摘要

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit.

主权项

1. A safety valve for a milker unit backflush and teat dip application system, the safety valve comprising:
a housing for communication with a downstream portion of a milker unit to define a milk flow direction from the downstream portion of the milker unit toward the housing, and the housing defines: a backflush fluid inlet, a backflush fluid outlet, a backflush fluid conduit extending between the backflush fluid inlet and the backflush fluid outlet to direct a backflushing fluid toward the downstream portion of the milker unit in a direction that is opposite the milk flow direction, a dip inlet, a dip outlet, and a dip flow path extending between the dip inlet and the dip outlet; a dip piston for movement between a closed position to block the dip flow path and a dipping position to open the dip flow path; and a backflush piston disposed in the housing for movement between a milking position and a backflush position.