Control valve

Details Control valve Control valve

1982-02-01

1984-02-07

Tapolcai, William E.

Fluid handling

Systems

Multi-way valve unit

13762538, 251DIG1, F17D 100

Patent

active

044297165

ABSTRACT:
A balanced valve in which a hollow cylindrical valve element is slideably supported solely by a pair of O-rings adjacent opposite ends of the valve element. The O-rings loosely engage longitudinally grooved sections which are directly adjacent annular valve seats against which the O-rings engage to close the valve. When the valve element is moved to open the valve, fluid will flow through both grooved sections. The valve element is moved between open and closed positions by two solenoid coils operating concurrently and is magnetically latched in each position.

REFERENCES:
patent: 1143999 (1915-06-01), Rosencrans
patent: 2921603 (1960-01-01), Lofink
patent: 3805839 (1974-04-01), Baumann
patent: 3951381 (1976-04-01), Whitener
patent: 3955759 (1976-05-01), Knapp
patent: 4000849 (1977-01-01), Wagner et al.
patent: 4172583 (1979-10-01), Wrasman

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