一、V-DV-DC-JQ-B系列电磁真空带充气阀概述

V-DV-DC-JQ-B型系列电磁真空带充气阀是安装在机械式真空泵上的专用阀门。阀门与泵接在同一电源上，泵的开启与停止直接控制了阀的开启与关闭。当泵停止工作或电源突然中断时，阀能自动将真空系统封闭，并将大气通过泵的进气口充入泵腔，避免泵油返流污染真空系统。
适用的工作介质为空气及非腐蚀性气体。 

The V-DV-DC-JQ-B series electromagnetic vacuum belt inflation valve is a specialized valve installed on mechanical vacuum pumps. The valve and pump are connected to the same power source, and the opening and stopping of the pump directly control the opening and closing of the valve. When the pump stops working or the power is suddenly interrupted, the valve can automatically seal the vacuum system and fill the pump chamber with atmosphere through the pump's inlet, avoiding pump oil backflow and pollution of the vacuum system.

The applicable working medium is air and non corrosive gases.

二、V-DV-DC-JQ-B系列电磁真空带充气阀主要参数