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Page 131
阀门执行机构
VALVE ACTUATION

美国斯毕尔公司
 
  阀门执行机构是一种采用机械力的设备,一台执行机构操作一个阀门。执行机构经常用于实现紧靠手动阀门无法实现的工艺过程的自动化,准确定时,以及远程操作。常见的执行机构是电动执行机构或气动执行机构,而且可以配置各种各样的功能和附件来实现各种阀门操作控制要求。
  Valve actuation utilizes a mechanical power device, an actuator, to operate a valve. Actuation is often desired for process automation, precision timing, and remote operation not possible with manual valves alone. Actuators are most commonly either electric or pneumatic and can be equipped with a variety of functions and accessories for controlling valve operation.
  执行机构的输出扭矩必须满足或超过所应用阀门所需的操作扭矩要求。执行机构输出指标通常为开始和结束扭矩的参数值。在这种情况下,最小输出扭矩应该用来满足阀门的扭矩要求。在本手册中,美国斯毕尔公司工业球阀和蝶阀的每种阀门章节都有列出操作扭矩指标。
  Output torque of the actuator must meet or exceed the operating torque requirements of the specific valve to be actuated. Actuator output specifications often list beginning and ending torque values. In such cases, the lowest output torque should be used in matching valve requirements. Operating torque specifications are listed for each Spears® Industrial Ball Valve and Butterfly Valve in the individual valve sections of this manual.
  阀门的执行机构需要安装装置,用于将执行机构附加在阀门上;和连接装置,用作执行机构输入/输出与阀门阀杆的交互界面。安装装置必须坚固耐用,确保安全支撑执行机构,保证承受阀门开启和关闭所产生的操作扭矩。连接装置根据实际执行机构输入/输出要求的不同在设计上也有所不同。。这些都能够实现同时满足执行机构技术参数和美国斯毕尔公司阀门阀杆输出参数的要求。(请参阅本手册球阀附件蝶阀章节了解阀门阀杆技术参数。)
  Actuation of a valve requires both a mounting device for attaching the actuator to the valve, and a coupling device to interface actuator input/output with the valve stem. Mounting devices must form a rigid, secure attachment capable of supporting the actuator and sustaining the operational torque generated in valve opening and closing. Coupling devices vary in design according to actual actuator input/output requirements. These can be fabricated to meet both actuator specifications and Spears® valve stem output specifications (see Ball Valve Accessories and Butterfly Valves sections of this manual for valve stem specifications.)
  美国斯毕尔公司小型安装和多用安装执行机构安装组件特别设计用于为执行机构与美国斯毕尔公司工业球阀提供最佳的执行机构安装装置(请参阅本手册球阀附件章节了解进一步细节)。适用于ISO安装模式,这些耐化学品和耐腐蚀组件与许多品牌的执行机构相兼容。美国斯毕尔公司工业蝶阀设计采用整体模铸执行机构安装台,很容易按照定制执行机构进行改装。
  Spears® Mini Mount and Multi Mount Actuation Mounting Kits are specially designed to provide optimum mounting of actuators to Spears® Industrial Ball Valves (see Ball Valve Accessories section for additional details). Manufactured to ISO mounting patterns, these chemical and corrosion resistant kits are compatible with a wide variety of actuator brands. Spears® Industrial Butterfly Valves are designed with an integrally molded actuation mounting pad easily adaptable to custom actuation.

完整的执行机构阀门总成
Fully Actuated Valve Packages

  美国斯毕尔公司为工业球阀和蝶阀提供电动或气动执行机构总成。这些完整的执行机构总成包括:阀门,安装装置,连接装置,便于安装的工厂组装精确执行机构。由于执行机构要求、选择和附件的多样性,每个总成可以根据用户的要求和规定进行定制。参阅“执行机构驱动热塑性阀门”,了解详细资料。
  Spears® offer both electric and pneumatic actuation packages for Industrial Ball Valves and Butterfly Valves. These fully actuated packages include valve, mounting, coupling and precision acruator factory assembled and ready for installation. Due to the wide variety of actuation requirements, options, and accessories, each package is custom tailored to customer needs and specifications. See publication AV-4, Actuated Thermoplastic Valves, for detailed information.

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