一、铝合金进口AT型气动执行器简介

气动执行器是用压缩空气驱动启闭或调节阀门的执行装置，又被称气动执行机构或气动装置，不过一般通俗的称之为气动头。气动执行器有时还配备一定的辅助装置。常用的有阀门定位器和手轮机构。阀门定位器的作用是利用反馈原理来改善执行器的性能,使执行器能按控制器的控制信号,实现准确的定位。手轮机构的作用是当控制系统因停电、停气、控制器无输出或执行机构失灵时,利用它可以直接操纵控制阀，以维持生产的正常进行。

Pneumatic actuator is an actuator that uses compressed air to drive the opening and closing or regulating of valves, also known as pneumatic actuator or pneumatic device, but commonly referred to as pneumatic head. Pneumatic actuators are sometimes equipped with certain auxiliary devices. Commonly used are valve positioners and handwheel mechanisms. The function of a valve locator is to use feedback principle to improve the performance of the actuator, so that the actuator can achieve accurate positioning according to the control signal of the controller. The function of the handwheel mechanism is to directly operate the control valve to maintain normal production when the control system experiences power outage, gas outage, controller output failure, or actuator failure.

二、铝合金进口AT型气动执行器技术参数

三、铝合金进口AT型气动执行器性能特点

1、气动装置主要由气缸、活塞、齿轮轴、端盖、密封件、螺丝等组成；成套气动装置还应该包括开度指示、行程限位、电磁阀、定位器、气动元件、手动机构、信号反馈等部件组成。

2、气动装置与阀门的连接尺寸应符合ISO5211(底部)、 GB/T12222 和 GB/T12223 的规定。

3、带手动机构的气动装置，在气源中断时，应能用其手动机构进行气动球阀的启闭操作，面向手轮时，手轮或手柄应逆时针旋转为阀开，顺时针旋转为阀关。

4、活塞杆端部为内、外螺纹时，应有标准扳手适用的扳手口。

5、活塞的密封圈应便于更换与检修。

6、带缓冲机构的气动装置。

7、带可调缓冲机构的气动装置，应有缸体外部调节其缓冲作用的机构。

8、气动执行器结构简单、轻便、安装维护简单。介质为空气，较之液压介质来说不易燃烧，故使用安全。

9、工作介质成本低、不污染环境；

10、输出力以及工作速度的调节非常容易

11、可靠性高，使用寿命长。

12、利用空气的压缩性，可贮存能量，实现集中供气。可短时间释放能量，以获得间歇运动中的高速响应。可实现缓冲。对冲击负载和过负载有较强的适应能力。在一定条件下，可使气动装置有自保持能力。

13、全气动控制具有防火、防爆、防潮的能力。与液压方式相比，气动方式可在高温场合使用。

14、压缩空气可集中供应，远距离输送。

1. Pneumatic devices mainly consist of cylinders, pistons, gear shafts, end caps, seals, screws, etc; The complete pneumatic device should also include components such as opening indication, travel limit, solenoid valve, locator, pneumatic components, manual mechanism, signal feedback, etc.

2. The connection dimensions between pneumatic devices and valves should comply with the provisions of ISO5211 (bottom), GB/T12222, and GB/T12223.

3. A pneumatic device with a manual mechanism should be able to use its manual mechanism to open and close the pneumatic ball valve when the air source is interrupted. When facing the handwheel, the handwheel or handle should rotate counterclockwise to open the valve and clockwise to close it.

4. When the end of the piston rod is threaded internally or externally, there should be a wrench opening suitable for standard wrenches.

5. The sealing ring of the piston should be easy to replace and maintain.

6. Pneumatic device with buffer mechanism.

7. Pneumatic devices with adjustable buffering mechanisms should have a mechanism for adjusting their buffering effect outside the cylinder body.

8. The pneumatic actuator has a simple and lightweight structure, and is easy to install and maintain. The medium is air, which is less flammable than hydraulic medium, so it is safe to use.

9. Low cost of working media and no environmental pollution;

10. The adjustment of output force and working speed is very easy

11. High reliability and long service life.

12. By utilizing the compressibility of air, energy can be stored to achieve centralized gas supply. Can release energy for a short period of time to achieve high-speed response in intermittent movements. Can achieve buffering. Has strong adaptability to impact loads and overloads. Under certain conditions, pneumatic devices can have the ability to maintain themselves.

13. Fully pneumatic control has the ability to prevent fire, explosion, and moisture. Compared to hydraulic methods, pneumatic methods can be used in high-temperature situations.

14. Compressed air can be supplied centrally and transported over long distances.

四、铝合金进口AT型气动执行器附件介绍

1、单作用气动执行器（弹簧复位）：当电路气路切断或故障时，自动关闭( 常闭式)。

2、双作用气动执行器：双向气动控制阀门的开启和关闭。

3、双电控电磁阀：一个线圈通电时阀门打开，另一个线圈通电时阀门关闭，有记忆功能（可供防爆型）。

4、单电控电磁阀：供电时阀门打开或关闭，断电时阀门关闭或打开（可供防爆型）。

5、限位开关（回讯器）：远距离传送阀门打开或关闭的信号（可供防爆型）。

6、气动定位器：根据气压信号（0.2～1bar）的大小对阀门的介质流量进行调节控制（可供防爆型）。

7、电气定位器:根据电流信号（4～20mA）的大小对阀门的介质流量进行调节控制（可供防爆型）。

8、电气换位器：将电流信号转换成气压信号，与气动定位器配套使用。

9、气源处理三联件：包括减压阀、过滤阀、油雾器。对气源稳压、清洁及对连动部件起润滑作用。

10、手动装置：当气路电路切断或有故障时，用于手动操作阀门的启闭。

1. Single acting pneumatic actuator (spring return): automatically closes (normally closed) when the circuit air circuit is cut off or malfunctions.

2. Double acting pneumatic actuator: A bidirectional pneumatic control valve that opens and closes.

3. Dual electric control solenoid valve: When one coil is energized, the valve opens, and when the other coil is energized, the valve closes. It has a memory function (available for explosion-proof types).

4. Single electric control solenoid valve: the valve opens or closes when powered on, and closes or opens when powered off (explosion-proof type available).

5. Limit switch (relay): Remote transmission of valve opening or closing signal (available for explosion-proof type).

6. Pneumatic locator: adjusts and controls the medium flow rate of the valve based on the pressure signal (0.2-1 bar) (available for explosion-proof type).

7. Electrical locator: Adjust and control the medium flow rate of the valve based on the current signal (4-20mA) (available for explosion-proof type).

8. Electrical transducer: converts current signals into air pressure signals and is used in conjunction with pneumatic positioners.

9. Gas source treatment triple unit: including pressure reducing valve, filter valve, and oil mist collector. Regulate and clean the air source, and lubricate the connecting components.

10. Manual device: used to manually operate the opening and closing of valves when the pneumatic circuit is cut off or there is a malfunction.