Valve device for piping systems

Details Valve device for piping systems Valve device for piping systems

1989-03-15

1990-04-10

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251315, F16K 506, F16K 11087

Patent

active

049151339

ABSTRACT:
A valve device adapted for insertion at one or more specified locations in a pipe system. The device is adjustable into three positions: in the open position affording normal operation of the pipe system; in a first closed position affording connection of external pressure fluid to the system at one side of the location; and a second closed position affording connection of external pressure fluid to the system at the other side of the location. The device is in the nature of a ball valve with a spherical valve element having means for connecting pressure fluid through the valve housing into the system when the valve is in either of the first and second closed positions.

REFERENCES:
patent: 1232767 (1917-10-01), Camfield et al.
patent: 1660121 (1928-02-01), Fetter
patent: 1938064 (1933-12-01), Carmine
patent: 3684241 (1972-08-01), Hartman et al.
patent: 3936892 (1976-02-01), Miller
patent: 4573498 (1986-03-01), Ludwig
patent: 4760614 (1988-08-01), Harrison

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