Method and apparatus for maintaining valves in a water distribut

Details Method and apparatus for maintaining valves in a water distribut Method and apparatus for maintaining valves in a water distribut

1998-10-21

2000-10-03

Walton, George L.

Fluid handling

Processes

73168, 7386251, 73862541, 13731501, 137551, 137899, 235375, 700 83, 700 90, 702 33, 702 41, 25112901, 251292, F16K 3700, F16K 3102, G01M 1900

Patent

active

061258687

ABSTRACT:
A method and apparatus for maintaining valves in a water distribution system is the subject matter. A description is prepared of each valve in the system. An individual identifying symbol is assigned to each valve. The identifying symbol and the valve individual description and location, is loaded into a computer database. A group of valves in the system is selected to define an inspection route. A portable computer is loaded with the information regarding each valve along the inspection route. A valve turning machine is positioned adjacent to a selected valve. The valve turning machine includes an identification reader, a timer and the portable computer. A reader identifies a select valve by means of its symbol and the symbol is recorded in the portable computer. The turning machine is connected to the stem of the selected valve to turn the stem in a selected direction. The number of revolutions of the valve stem is counted and recorded in the portable computer. The lapsed time of each revolution of the valve stem is recorded in the portable computer. The condition of the selected valve is recorded in the portable computer. Each succeeding valve on the inspection route is inspected as described above. The information collected in the portable computer is downloaded into the database.

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