在套管与阀体之间的环形空间内施加气压来驱动阀门。
Applying air pressure to the annular space between the sleeve and the body actuates the valve.
真空挡板阀是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。
GDQ pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed.
型夹管阀也是所有执行机构驱动阀门中成本最低的选项，这有助于最大限度降低成本。
The Type a is also the lowest cost actuated valve available, which helps the bottom line.
本文简述了阀门控制的基本原理，给出了一种液压驱动阀门的控制系统方案，具有参考价值。
This article narrate the fundamental rule of valve control system, and propose one kind of hydraulic pressure drive valve control system scheme. Have reference value.
本装置由人力操作手轮，通过锥形齿轮等减速传动，直接驱动阀门阀杆上下移动，启闭阀门。
The device by the human operator launches, such as through the cone-shaped gear reducer drive, direct drive valve stem up and down movement of the valve gate.
CF高真空挡板阀系列是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。
CF pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed.
GD Q气动高真空挡板阀是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。
GDQ pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, controls the actuating cylinder to drive the valve opened closed.
GD Q型气动高真空挡板阀是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。
GDQ pneumatic high vacuum flapper valve USES solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed.
由于这种止回阀能够在重力和介质倒流撞击启闭件之前关闭阀门，因此这种直通弹簧驱动升降式止回阀也称为“静音”止回阀。
The in-line spring-actuated lift check also is referred to as the "silent check" because the spring closes the valve before gravity and fluid reversal can slam the valve closed.
阀门轴端与驱动器的连接平台符合ISO 5211标准。
Valve drive shaft connected with the platform in line with the ISO5211 standard.
电动执行机构是驱动和控制阀门主要装置，在实现管网自动化控制中发挥重要作用。
Electric actuator is an important equipment of driving and controlling valve, which plays important part in the field of realizing piping net automatization.
定期运转：在阀门的动作很稀少时，可以定期驱动机器，检查有无异常。
Regular operation: When the valve works infrequently, it should drive the machine regularly, checking abnormality or not.
液动驱动方式结构简单，重量轻，输出力矩大，在大口径、单回转阀门中常用。
The hydraulic drive is used commonly on valve with big caliber and simple tuning characteristic because of its simple frame, weight light, great deferent power comparatively.
阀门的启闭或调节动作受控于所施加的驱动转矩与实际负载转矩。
Furthermore, the adjustment, opening and closing of valve are controlled by the driving torque and actual loading torque.
建议在这些阀门上增设电磁阀，由停车系统驱动。
Suggest adding solenoids on these valves, driven by the shutdown system.
这种类型驱动装置的主要缺点是气源消耗，特别是使用在大通径阀门。
The major disadvantage of this type of actuator is air consumption, particularly when applied to large valves.
CC D型电动超高真空插板阀是通过电动装置驱动阀杆带动阀板作上下运动，达到阀门的开启或关闭。
CCD electric ultra-high vacuum gate valve USES electric device to drive the stem, moving valve disc up down to make the valve opened closed.
为了驱动所需的阀门，有必要提供某些参数，以保证能够恰当选择所需的执行机构，防止损坏系统。
To actuate all valves it is necessary to provide certain data to assure proper sizing and prevent damage to the system.
串联(转向)型号包括两个阀门由一个执行器驱动，在一个关闭时另一个开启。
Tandem (Diverting) part number includes two valves operated from one actuator with one opening while the other closes.
真空插板阀是通过电动装置驱动阀杆带动阀板作上下运动，达到阀门的开启或关闭。
CCD electric ultra-high vacuum gate valve USES electric device to drive the stem, moving valve disc up and down to make the valve opened or closed.
阀门气动驱动装置安全、可靠、成本低，使用维修方便，是阀门驱动机构中的一大分支。
Pneumatic valve drive safe, reliable, low cost, convenient repair, valve drive mechanism is one of the OitaSupport.
CC D型电动超高真空插板阀是通过电动装置驱动阀杆带动阀板作上下运动，达到阀门的开启或关闭。
CCD electric ultra-high vacuum gate valve USES electric device to drive the stem, moving valve disc up and down to make the valve opened or closed.
电动阀门是管道系统中非常重要的器件，其控制驱动部件是电动执行装置。
Electric valve is a very important part of ductwork which is used to stop or regulate the flow of medium in the pipe.
介绍螺纹插装阀在阀门液压驱动装置中的应用及选型注意事项。
The application of cartridge valves on valve' s hydraulic actuator, and problems were analyzed when using the cartridge valves.
介绍逻辑阀在阀门液压驱动装置中的应用及选型注意事项。
The application of logic valves on valve's hydraulic actuator, and problems were analyzed when using the logic valves.
阀门的驱动方式可以根据实际使用工况选用气动、电动、液动、手动、电液动、气液动等。
Driving model is according to actual working condition and can be pneumatic, electric-hydraulic, ect.
工业阀门。电力驱动器。规范。
通常只有当遇到需要额外工作负载时，工作循环才会大于25%，如阀门处于节流状态或驱动大型蝶阀的应用场合。
Duty cycles greater than 25% are generally needed only when additional work loads are encountered, such as valve modulation or in actuation of larger butterfly valves.
通常只有当遇到需要额外工作负载时，工作循环才会大于25%，如阀门处于节流状态或驱动大型蝶阀的应用场合。
Duty cycles greater than 25% are generally needed only when additional work loads are encountered, such as valve modulation or in actuation of larger butterfly valves.
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