发明名称 |
APARELHO DE CONTROLE DE FLUXO E APARELHO DE VALVULA E APARELHO DE CANCELAMENTO PARA UMA VALVULA |
摘要 |
The invention comprises an improved override and an interrelated valve system. A main valve has an actuator, the actuator in turn having a control for communicating a control signal to the actuator for selectively causing the actuator to place the main valve in its open or closed position. The override is associated with the main valve and selectively shiftable between an engaged mode in which the override is operatively connected with the main valve for moving the main valve between its open and closed positions, and a disengaged mode in which the operative connection between the override and the main valve is interrupted, whereby the main valve may move independently of the override. A shut-off functionally interconnects the override and the actuator control and is operative, upon shifting of the override to its engaged mode, to block the control signal from the actuator. |
申请公布号 |
BR8404176(A) |
申请公布日期 |
1985.07.16 |
申请号 |
BR19848404176 |
申请日期 |
1984.08.22 |
申请人 |
KEYSTONE INTERNATIONAL, INC. |
发明人 |
PETRUS JOHANNES RUDOLF SCHILS |
分类号 |
F16H1/16;F16H59/04;F16K31/05;F16K31/14;F16K31/53;(IPC1-7):F15B9/08 |
主分类号 |
F16H1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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