公开(公告)号：US4512363A

公开(公告)日：1985-04-23

申请号：US411407

申请日：1982-08-25

申请人： Frank J. Jandrasi ,  Davy G. Pampell ,  Walter J. Stinson

发明人： Frank J. Jandrasi ,  Davy G. Pampell ,  Walter J. Stinson

IPC分类号： F16K3/02 ,  F16K3/316 ,  F16L7/00

CPC分类号： F16K3/316 ,  F16K3/0218 ,  Y10T137/7036

摘要： Disclosed is a slide valve in which the valve internals, the valve seat, guides and slide valve are maintained in position by a clamping action of an abutment in the valve body and on the valve liner secured in the body by a quick make-up connection. The slide valve is suited for all sizes of valves, both large and small and no screws or other fasteners are needed to maintain the valve internals in position. Advantageously, the guides and slides of the slide valve are maintained out of the flow path, and the valve internals including the orifice assembly with its valve seat and guides, and slide valve with its slides are readily removable through the bonnet area.

摘要翻译： 公开了一种滑阀，其中阀内部件，阀座，引导件和滑阀通过紧固在阀体中的抵接件和通过快速补充连接固定在阀体中的阀衬套保持在适当的位置 。 滑阀适用于所有尺寸的大型和小型阀门，不需要螺丝或其他紧固件来将阀门内部件保持在适当位置。 有利地，滑阀的引导件和滑动件保持在流动路径之外，并且包括具有其阀座和引导件的孔口组件以及具有其滑动件的滑阀的阀内件可容易地通过阀盖区域移除。

公开(公告)号：US4518146A

公开(公告)日：1985-05-21

申请号：US489683

申请日：1983-04-28

申请人： Walter J. Stinson ,  Larry J. Phillips

发明人： Walter J. Stinson ,  Larry J. Phillips

IPC分类号： F16K31/12 ,  F16K49/00 ,  F16K31/128

CPC分类号： F16K49/00 ,  F16K31/12 ,  Y10T74/18688

摘要： A control system for a valve actuator which is subject to oppositely directed displacement due to thermal expansion and spring forces has sensor switches which detect successively greater amounts of compression of a spring which compresses to accommodate thermal expansion of the valve, its stem and seat when the valve is seated in closed position. A position servomechanism which is responsive to the position of the stem and a control signal operates a motor for advancing and retracting the stem. Separate control devices, which are two way valves when the motor is a fluid motor and the servomechanism is a fluid operative servomechanism, are controlled by the sensor switches to stop the motor from overcompressing the spring when first position of the spring is reached and to operate the motor to retract the valve back to the first position when the second position is reached whereby to maintain a predetermined bias forcing the valve against the seat due to the spring forces in spite of thermal expansion of the valve, its seat and stem.

摘要翻译： 用于阀致动器的控制系统由于热膨胀和弹簧力而受到相反指向的位移，具有传感器开关，其检测连续更大量的弹簧的压缩，该弹簧压缩以适应阀，其阀杆和阀座的热膨胀，当阀 阀门处于关闭位置。 响应于杆的位置的位置伺服机构和控制信号操作用于前进和后退杆的马达。 当电动机是流体电动机并且伺服机构是流体操作伺服机构时，分离的控制装置由传感器开关控制，以在弹簧的第一位置到达时停止电动机过度压缩并且操作弹簧 当达到第二位置时，电动机将阀回到第一位置，由此由于弹簧力，即使阀，阀座和阀杆的热膨胀，仍然保持预定的偏压，迫使阀抵靠阀座。