Pilot operated water valve for livestock trough

Details Pilot operated water valve for livestock trough Pilot operated water valve for livestock trough

F - Mech Eng,Light,Heat,Weapons

16

K

137/29

F16K 31/18 (2006.01)

Patent

CA 2001627

ABSTRACT A main pilot operated valve for automatically regulating the supply of water to a livestock watering trough. The main valve comprises a valve body with an extension projecting downwardly from its underside and housing a small float actuated pilot valve. Both valves are located at one end of the trough. When the water level in the trough begins to drop due to consumption by the animals, the small pilot valve starts to open and bleeds a small stream of water therethrough from the main pilot operated valve. This serves to avoid water hammer and chatter and facilitates discharge of sand and other debris. As the water level drops about 3/4 inch, a diaphragm shifts inside the main pilot operated valve, discharging water from that valve at full supply line pressure and flow of 20 gallons per minute until full level in the trough is restored.

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