Smooth vent valve

Details Smooth vent valve Smooth vent valve

1998-09-08

2000-08-01

Jacyna, J. Casimer

Fluid handling

Systems

Valves with separate, correlated, actuators

137613, 251121, F16K 5102

Patent

active

060951931

ABSTRACT:
A smooth vent valve in which an on-off valve and a flow control valve are provided in series and arranged to be capable of being operated by respective actuating mechanisms, thereby accurately performing the on-off operation of the on-off valve and the flow rate control of the flow control valve. The smooth vent valve (11) has an on-off valve (8) and a flow control valve (9), which are coaxially provided between an inlet port (18) and outlet port (19) of a valve body (13 to 15). The on-off valve (8) and the flow control valve (9) are placed in series. An actuating mechanism for the on-off valve (8) and an actuating mechanism for the flow control valve (9) are formed separately from each other. When the on-off valve is in an open position, the flow control valve can be switched between a throttling position and an open position while continuously changing the flow rate.

REFERENCES:
patent: 2401124 (1946-05-01), Walker et al.
patent: 3640311 (1972-02-01), Gotzenberger
patent: 4168719 (1979-09-01), Renshaw
patent: 5271427 (1993-12-01), Berchem
patent: 5762086 (1998-06-01), Ollivier
patent: 5971018 (1999-10-01), Karlsson et al.

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