一、进口电动蝶阀产品概述

进口电动蝶阀（美国威盾VTON），Electric butterfly valve，也叫电动控制蝶阀，电控蝶阀，电动法兰蝶阀，电动对夹蝶阀，电动调节蝶阀，是指由角行程的电动执行机构和蝶阀组成，电动执行器驱动蝶阀开启和关闭或者带定位器调节的阀门。连接方式主要有：法兰式和对夹式。是工业自动化控制领域中的重要执行单元。电动蝶阀电动执行器分为普通开关型、无源触点开关型、电位计反馈型、开关控制模拟量输出型、智能调节型输入输出4-20mA

Electric butterfly valve (VTON), also known as electric control butterfly valve, electric butterfly valve, electric flange butterfly valve, electric clamp butterfly valve, electric regulating butterfly valve, refers to a valve composed of an electric actuator and butterfly valve with angular stroke, which drives the butterfly valve to open and close or is adjusted with a locator. The main connection methods are flange type and clamp type. It is an important execution unit in the field of industrial automation control. Electric butterfly valve electric actuators are divided into ordinary switch type, passive contact switch type, potentiometer feedback type, switch control analog output type, and intelligent adjustment type with input and output 4-20mA

二、美国威盾VTON电动蝶阀详细分类：

1、电动对夹式蝶阀，适用于温度≤80～120℃如食品、化工、石油、电力、轻纺、造纸等给排水、气体管道上作调节流量和截流介质的作用。

2、电动软密封蝶阀，适合内衬，不仅阀座可衬，蝶板亦可衬，做卫生级阀门更能达到不污染介质的效果，是普通球阀不可达到的可塑造性。

3、电动硬密封蝶阀，采用堆焊硬质合金或不锈钢，使得密封面强度高、硬度好、耐磨损，可连续启闭60000次以上而无损伤。

4、电动法兰蝶阀，由于本产品蝶阀采用的是三维偏心原理设计，使密封面的空间运动轨迹达到理想化，密封面相互之间无磨擦、无干涉、加之密封材料选择得当，从而使蝶阀的密封性、耐腐蚀性、耐高温性和耐磨性等得到了可靠的保证。

5、电动调节蝶阀，电动调节蝶阀以220V AC电源为动力，接受0~10V或4~20mA标准信号，驱使阀门开度与此操作信号相对应，达到调节介质压力、流量、温度之目的，结构简单，操作方便。阀板为椭圆斜关结构，泄漏量小。适用于大口径、大流量场合。由于有自清洗作用，所以特别适用于通风系统和含有悬浮颗粒介质的调节。

6、电动衬胶蝶阀，适合在淡水，海水，盐类，弱碱，弱酸，天然气，空气，蒸汽，油类，食品等介质中使用。

7、电动通风蝶阀采用与阀体相同材料加工成密封圈，其适用温度随阀体选材而定，公称压力≤0.6MP工，一般适用工业、冶金、环保等管道作通风调节介质流量之用。

8、电动伸缩蝶阀，其主要特点如下：设计新颖、合理、结构独特、重量轻、操作方便、启闭迅速；伸缩蝶阀除了能作调节和截流作用、补偿管道温差所产生的热胀冷缩功能外，还能为安装更换、维修阀门提供方便。密封部位可调节更换、密封性能可靠等特点。

1. Electric clamp type butterfly valve is suitable for regulating flow and intercepting medium on water supply and drainage, gas pipelines, and gas pipelines with a temperature ≤ 80-120 ℃, such as food, chemical, petroleum, electricity, light textile, paper, etc.

2. Electric soft seal butterfly valve, suitable for lining, not only can the valve seat be lined, but also the butterfly plate can be lined. As a sanitary valve, it can achieve the effect of not polluting the medium, which is a plasticity that ordinary ball valves cannot achieve.

3. Electric hard sealed butterfly valves are made of welded hard alloy or stainless steel, which ensures high sealing surface strength, good hardness, and wear resistance. They can be opened and closed continuously for more than 60000 times without damage.

4. The electric flange butterfly valve is designed based on the three-dimensional eccentricity principle, which idealizes the spatial movement trajectory of the sealing surface. The sealing surfaces have no friction or interference with each other, and the selection of sealing materials is appropriate, thereby ensuring reliable sealing, corrosion resistance, high temperature resistance, and wear resistance of the butterfly valve.

5. Electric regulating butterfly valve, powered by 220V AC power supply, accepts standard signals of 0-10V or 4-20mA, drives the valve opening to correspond to this operating signal, and achieves the purpose of regulating medium pressure, flow rate, and temperature. The structure is simple and the operation is convenient. The valve plate has an elliptical oblique closing structure, with low leakage. Suitable for large caliber and high flow situations. Due to its self-cleaning function, it is particularly suitable for regulating ventilation systems and media containing suspended particles.

6. Electric lined butterfly valve, suitable for use in media such as fresh water, seawater, salt, weak alkali, weak acid, natural gas, air, steam, oil, food, etc.

7. The electric ventilation butterfly valve is made of the same material as the valve body and processed into a sealing ring. Its applicable temperature depends on the material selection of the valve body, and the nominal pressure is ≤ 0.6MP. It is generally suitable for regulating the flow rate of ventilation media in industrial, metallurgical, environmental and other pipelines.

8. The main characteristics of electric telescopic butterfly valves are as follows: novel and reasonable design, unique structure, light weight, easy operation, and fast opening and closing; Expansion butterfly valves not only have the function of regulating and intercepting flow, compensating for thermal expansion and contraction caused by pipeline temperature differences, but also provide convenience for valve installation, replacement, and maintenance. The sealing part can be adjusted and replaced, and the sealing performance is reliable.

三、进口电动蝶阀主要技术参数

公称通径：DN40～1000mm

公称压力：PN1.6,4.0,6.4MPa

电源电压：220V/50Hz、380V/50Hz

 输入信号：4-20mA或1-5V·DC

输出信号：4-20mA·DC

防护等级：相当IP67

隔爆标志：ExdⅡBT4

手操功能：手柄

连接形式：法兰，对夹

材料：HT200 WCB 1Gr18Ni9Ti ZGOCr18Ni12Mo2Ti

填料：V型聚四氟乙烯，柔性石墨，石棉纺织填料 HT200，ZG25，1Cr18Ni9Ti，衬橡胶，衬四氟乙烯

密封材料:不锈钢,橡胶,四氟乙烯 阀内组件：

阀芯形式：阀板

流量特性：等百分比特性或直线特性

材料：1Cr18Ni9Ti OCr18Ni12M02Ti

类型：可选FGV电子式角行程执行机构系列，浮点型，调节型可选。