一、电动超高真空插板阀概述

VCCD型系列电动超高真空插板阀是利用螺杆电动推动，密封轴（杆）做轴向运动，推（拉）动 举升机构，带动驱动体沿轴向运动，当定位板运动到止动块时，密封压板和支撑板停止轴向 移动，而卧在密封压板和支撑板球窝内的钢球被驱动体推出球窝，从而使支撑板和密封压板 背离驱动体，而压向阀门法兰的支撑面和密封面，当钢球完全离开球窝而位于支撑板和密封 压板的平面上时，压紧力达到最大，阀门被完全关闭，当驱动体被拉动向后运动时，由于密封 压板和支撑板与法兰面间摩擦力很大，钢球被驱动体拉回球窝，密封压板和支撑板在中心弹 簧的作用下，压向驱动体，随驱动体一同向后运动，离开法兰孔口，使阀门完全打开。

适用的工作介质为洁净的空气及非腐蚀性气体。

The VCCD series electric ultra-high vacuum plug valve is driven by screw electric propulsion, with the sealing shaft (rod) moving axially, pushing (pulling) the lifting mechanism, and driving the driving body to move axially. When the positioning plate reaches the stop block, the sealing pressure plate and support plate stop moving axially, and the steel ball lying in the sealing pressure plate and support plate socket is pushed out of the ball socket by the driving body, causing the support plate and sealing pressure plate to deviate from the driving body and press against the support surface and sealing surface of the valve flange. When the steel ball completely leaves the ball socket and is located on the plane of the support plate and sealing pressure plate, the compression force reaches its maximum, and the valve is completely closed. When the driving body is pulled backward, due to the frictional force between the sealing pressure plate and support plate and the flange surface, Very large, the steel ball is pulled back to the ball socket by the driving body, and the sealing pressure plate and support plate are under the action of the central spring, Press towards the driving body, move backwards together with the driving body, leave the flange hole, and fully open the valve.

The applicable working medium is clean air and non corrosive gases.

二、电动超高真空插板阀主要性能参数