Sanitary hydrant

摘要

A freeze resistant sanitary hydrant is provided that employs a reservoir for storage of fluid under the frost line or in an area not prone to freezing. To evacuate this reservoir, a means for altering pressure is provided that is able to function in hydrant systems that employ a vacuum breaker.

主权项

1. A sanitary hydrant, comprising:
a pipe having a first end and a second end; a head interconnected to the first end of the pipe; a fluid reservoir associated with the second end of the pipe a venturi positioned within the reservoir and interconnected to the second end of the pipe, the venturi comprised of a first end, which is interconnected to the pipe, and a second end associated with a fluid inlet valve with a throat between the first end and the second end of the venturi; a bypass tube having a first end interconnected to a location adjacent to the first end of the venturi and a second end interconnected to a bypass valve, the bypass valve also associated with the second end of the venturi; wherein when the bypass valve is opened, fluid flows from the inlet valve, through the bypass tube, through the pipe, and out the head; and wherein when the bypass valve is closed, fluid flows through the venturi.