Method and apparatus for water surge protection and protection o

Details Method and apparatus for water surge protection and protection o Method and apparatus for water surge protection and protection o

1992-03-31

1993-06-15

Cohan, Alan

Fluid handling

Processes

Cleaning, repairing, or assembling

137207, 137300, F16K 2100

Patent

active

052189872

ABSTRACT:
A method and apparatus are disclosed for protecting a water distribution system from water surge damage which otherwise might result if one of its valves is suddenly opened or closed. The outlet of the shut-off valve and the inlet of the hydrant valve of one outlet of the system are excavated, and a specially designed tap including an airtight reservoir is inserted between and connected to them. When the tap is installed, the reservoir is preferably oriented to extend perpendicularly upward, so it normally will be at least partially filled with air in use. Preferably, no further joints separate the shut-off valve and the hydrant valve. Finally, the shut-off valve, the hydrant valve, and the tap are preferably buried to a depth beneath the frost line, if the hydrant is exposed to a climate where the ground is subject to freezing. A water distribution system having the previously described elements at each outlet is also disclosed.

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