Non-freeze wall hydrant

Details Non-freeze wall hydrant Non-freeze wall hydrant

2005-03-11

2009-10-27

Fox, John (Department: 3753)

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

C251S266000

Reexamination Certificate

active

07607453

ABSTRACT:
A freezeless hydrant having an inlet and outlet, the hydrant including an elongated pipe connecting a valve to an operator. A stem has a length and has a first end engaged with operator threads and a second end carrying a stopper portion of the valve. A portion of the stem engages projections on an inner portion of the pipe such that the valve operator stem is held against rotational movement. The stopper portion includes a first and second seal face such that rotational movement of the operator results in longitudinal movement of the stem and in closing of the valve by moving the stopper portion and the first seal face into compressive sealing engagement with a face of a reduced diameter portion of the pipe and the second seal into movable frictional engagement with an inner diameter of the reduced diameter portion. The hydrant can be mounted in a hydrant box on the exterior of a structure. The hydrant allows for a flow of water across the valve face and can be mounted flat to a surface with a single pipe diameter projecting from the flat back surface of a hydrant mounting plate. The mounting plate can include a tang to prevent rotation of the hydrant as the valve is operated.

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