一、进口电动硬密封蝶阀产品概述

进口电动硬密封蝶阀（美国威盾VTON），Electric hard seal butterfly valve，也叫电动双偏心蝶阀，电动硬密封法兰蝶阀，电动硬密封对夹蝶阀，电动硬密封铸钢蝶阀，是指由角行程的电动执行器和金属硬密封双偏心蝶阀组成，由电动执行器驱动蝶阀阀板的开启和关闭的蝶阀，也可以配置定位器，对介质进行流量，压力，温度的智能调节。

美国威盾VTON电动硬密封蝶阀耐磨，耐温，耐压，主要产品有电动双偏心硬密封蝶阀，电动碳钢硬密封蝶阀，电动不锈钢硬密封蝶阀，电动硬密封对夹蝶阀，电动硬密封法兰蝶阀，电动硬密封调节蝶阀，进口电动双偏心硬密封蝶阀。

Electric hard seal butterfly valve (VTON), also known as electric double eccentric butterfly valve, electric hard seal flange butterfly valve, electric hard seal clamp butterfly valve, and electric hard seal cast steel butterfly valve, refers to a butterfly valve composed of an angle stroke electric actuator and a metal hard seal double eccentric butterfly valve, which is driven by an electric actuator to open and close the butterfly valve plate. It can also be equipped with a locator to intelligently adjust the flow, pressure, and temperature of the medium.

The American Weidun VTON electric hard seal butterfly valve is wear-resistant, temperature resistant, and pressure resistant. Its main products include electric double eccentric hard seal butterfly valves, electric carbon steel hard seal butterfly valves, electric stainless steel hard seal butterfly valves, electric hard seal clamp butterfly valves, electric hard seal flange butterfly valves, electric hard seal adjustable butterfly valves, and imported electric double eccentric hard seal butterfly valves.

二、进口电动硬密封蝶阀的产品特点

1、电动硬密封蝶阀采用三偏心多层次硬密封蝶阀，流体阻力小，密封面受冲击小，不改变介质流向，不扰流，压降小，启闭力矩小，适用压力温度范围广。

2、电动硬密封蝶阀采用三偏心斜锥面密封，利用蝶板摆动接触密封、密封启闭无磨损，关闭时具有越关越紧，密封性能越可靠，开启确保密封面完全脱离接触，确保密封面不损伤。

3、当电动硬密封蝶阀开启时，蝶板与阀座在关闭时瞬间接触，利用蝶板偏心1、偏心2迅速脱离阀座，降低了密封副的磨损，磨擦力矩小，开启灵活。偏心锥面3使阀门在开启或关闭时蝶板能通过阀座内孔，实现接触密封。另外，锥形蝶板的旋转半径大于密封副接触位置的旋转半径，故蝶板在阀门关闭时将出现越关越紧，能够实现自锁，防止蝶板过位。

4、电动硬密封蝶阀密封面选择D507Mo和钴基硬质合金等材料制作，具有耐腐蚀、耐高温、使用寿命长的特点，克服了高温使用时热膨胀阀门易泄漏的缺点.

5、电动硬密封蝶阀蝶板密封圈采用软硬层叠式金属片，它具有弹性密封和软硬多层次密封兼容的双重特点，无论在抗腐蚀、耐高温的情况下，均有良好的密封性。

1. The electric hard sealed butterfly valve adopts a three eccentric multi-level hard sealed butterfly valve, which has low fluid resistance, small impact on the sealing surface, does not change the flow direction of the medium, does not disturb the flow, has small pressure drop, small opening and closing torque, and is suitable for a wide range of pressure and temperature.

2. The electric hard sealed butterfly valve adopts a three eccentric inclined conical surface seal, which uses the butterfly plate to swing and contact for sealing, and the sealing opening and closing have no wear. When closed, it has a tighter and more reliable sealing performance. When opened, it ensures that the sealing surface is completely out of contact, ensuring that the sealing surface is not damaged.

3. When the electric hard sealed butterfly valve is opened, the butterfly plate and valve seat make instant contact when closed. By using the eccentricity of the butterfly plate 1 and 2 to quickly detach from the valve seat, the wear of the sealing pair is reduced, the friction torque is small, and the opening is flexible. Eccentric conical surface 3 enables the butterfly plate to pass through the inner hole of the valve seat and achieve contact sealing when the valve is opened or closed. In addition, the rotation radius of the conical butterfly plate is greater than the rotation radius of the contact position of the sealing pair, so the butterfly plate will become tighter and tighter when the valve is closed, which can achieve self-locking and prevent the butterfly plate from being over positioned.

4. The sealing surface of the electric hard sealed butterfly valve is made of materials such as D507Mo and cobalt based hard alloy, which have the characteristics of corrosion resistance, high temperature resistance, and long service life, overcoming the disadvantage of easy leakage of thermal expansion valves during high-temperature use

5. The butterfly plate sealing ring of the electric hard sealed butterfly valve adopts a soft and hard layered metal sheet, which has the dual characteristics of elastic sealing and compatibility with soft and hard multi-level sealing. It has good sealing performance regardless of corrosion resistance and high temperature resistance.

三、进口电动硬密封蝶阀技术参数

公称通径：DN50-1200（mm）

公称压力：1.6-4.0MPa

连接方式：对夹、法兰

阀体材料：WCB、CF8、CF8M

阀板材料：WCB、CF8、CF8M

阀座：多层次不锈钢合金

安装执行器及附件：电动执行器AC220V/AC380V/AC110V/DC24V ; 电动控制箱

电动硬密封蝶阀适用介质

空气、水、蒸气、煤气、油品以及酸、碱、盐,带有弱腐蚀性介质。

四、进口电动硬密封蝶阀的外形尺寸 单位：mm