气动阀门和电动阀门的区别到底是什么，他们各有什么优、缺点，都比较适合用在什么场合，本文就为你介绍介绍。
What are the differences between pneumatic valves and electric valves, and what are their advantages and disadvantages? This article will introduce them to you.
什么是气动阀门
What is a pneumatic valve
气动阀门就是借助压缩空气驱动的阀门。气动阀采购时只明确规格、类别、工压就满足采购要求的作法，可用于控制空气、水、蒸汽、各种腐蚀性介质、泥浆、油品、液态金属和放射性介质等各种类型流体的流动。在当前市场经济环境里是不完善的。因为气动阀制造厂家为了产品的竞争，各自均在气动阀统一设计的构思下，进行不同的创新，形成了各自的企业标准及产品个性。因此在气动阀采购时较详尽的提出技术要求，与厂家协调取得共识，作为气动阀采购合同的附件是十分必要的。本类阀门在管道中一般应当水平安装。
Pneumatic valve is a valve driven by compressed air. The pneumatic valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It is imperfect in the current market economic environment. For the sake of product competition, pneumatic valve manufacturers have made different innovations under the idea of unified design of pneumatic valves, forming their own enterprise standards and product personality. Therefore, it is necessary to put forward technical requirements in detail when purchasing pneumatic valves and reach a consensus through coordination with the manufacturer as an annex to the pneumatic valve purchase contract. Generally, this type of valve shall be installed horizontally in the pipeline.
气动阀门是具有气动执行机构双层气缸 ，并带有缓冲机构和手动及其保护机构，该阀由于采用双层气缸结构，其与单气缸式气动闸阀相比，提升力大了一倍。这就从根本上了单气缸气动闸阀的某些阀体内楔死而打不开的弊病。
The pneumatic valve has a double-layer cylinder with a pneumatic actuator, a buffer mechanism, a manual and its protection mechanism. Due to the double-layer cylinder structure, the lifting force of the valve is twice as large as that of the single cylinder pneumatic gate valve. This fundamentally solves the problem that some valve bodies of single cylinder pneumatic gate valves are wedged and cannot be opened.
什么是电动阀门
What is an electric valve
电动阀门动作力距比普通阀门大，电动阀门开关动作速度可以调整，结构简单，易维护，可用于控制空气、水、蒸汽、各种腐蚀性介质、泥浆、油品、液态金属和放射性介质等各种类型流体的流动。而传统的气动阀门动作过程中因气体本身的缓冲特性，不易因卡住而损坏，但有气源，且其控制系统也比电动阀门复杂。 本类阀门在管道中一般应当水平安装。
The actuating force distance of the electric valve is larger than that of the ordinary valve. The switching speed of the electric valve can be adjusted. The electric valve has simple structure and is easy to maintain. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal and radioactive media. However, the traditional pneumatic valve is not easy to be damaged due to the buffer characteristics of the gas itself, but it has a gas source, and its control system is more complex than the electric valve. Generally, this type of valve shall be installed horizontally in the pipeline.
电动阀门是一种做直线运动的阀门，它与Z型多回转执行机构相配，有开关型和智能型。此阀门操作简单是一种较常见的启闭阀，它利用闸板的上、下工作来接通和关断管道中的流体介质。广泛用于电力、冶金、石油、化工、造纸、污水处理等部门。
Electric valve is a kind of valve with linear motion, which is matched with Z-type multi rotation actuator, including switch type and intelligent type. This valve is easy to operate. It is a common open and close valve. It uses the up and down work of the ram to connect and shut off the fluid medium in the pipeline. It is widely used in electric power, metallurgy, petroleum, chemical industry, papermaking, sewage treatment and other departments.
电动阀门和气动阀门的区别：
Difference between electric valve and pneumatic valve:
1、气动阀动作力距比电动阀门大，气动阀门开关动作速度可以调整，结构简单，易维护，动作过程中因气体本身的缓冲特性，不易因卡住而损坏，但有气源，且其 控制系统也比电动阀门复杂。气动阀门响应灵敏，很多对控制要求高的厂专为气动仪表控制元件设置压缩空气站。气动阀门执行机构动力源为气源，气源 来源于空压机，采用定位器将电控信号转换成气动控制信号，驱动气动执行机构进行阀位调节。
1. The actuating force distance of the pneumatic valve is larger than that of the electric valve. The switching speed of the pneumatic valve can be adjusted. The structure is simple and easy to maintain. Due to the buffer characteristics of the gas itself, it is not easy to get stuck and damaged during the action. However, there is a gas source, and its control system is more complex than that of the electric valve. Pneumatic valves are sensitive. Many factories with high control requirements set compressed air stations for pneumatic instrument control elements. The power source of the pneumatic valve actuator is the air source. The air source is from the air compressor. The positioner is used to convert the electric control signal into the pneumatic control signal to drive the pneumatic actuator for valve position adjustment.
2、电动阀门执行机构动力源为电源，如果线路板或电机出现故障容易出现火花，所以一般应用在环境要求不高和没有危险的场合就气动执行机构和电动执行机构调 节性能比较，气动执行机构响应速度更快，能更适合应用在调节工况，所以生产调节阀的厂家都同时生产气动执行机构与之配套。
2. The power source of the electric valve actuator is the power supply. If the circuit board or motor fails, sparks are likely to occur. Therefore, it is generally used in occasions with low environmental requirements and no danger. Compared with the regulating performance of the pneumatic actuator and the electric actuator, the pneumatic actuator has faster response speed and can be more suitable for application in the regulating condition. Therefore, the manufacturers of the regulating valve produce the pneumatic actuator at the same time.
3、电动执行机构的调节响应速度不够快，调节阀上配气动执行机构要比电动执行机构应用多。4、电动阀门和气动阀门的本质区别在于使用不同的驱动装置，也就是执行机构，而调节阀本身没有什么区别。配合不同的执行机构主要是工况要求，如化工等要求 防爆的场合，使用较多的是气动阀门，因为性要求高，而且便宜，配合智能定位器可以上总线，控制方式也简单。
3. The adjustment response speed of the electric actuator is not fast enough, and the pneumatic actuator on the control valve is more applied than the electric actuator. 4. The essential difference between electric valve and pneumatic valve lies in the use of different driving devices, that is, actuators, while there is no difference between the regulating valve itself. Matching with different actuators is mainly based on the requirements of working conditions, such as chemical industry and other occasions requiring explosion-proof. Pneumatic valves are mostly used because of their high requirements and low price. They can be connected to the bus with intelligent positioners, and the control mode is also simple.
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