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双针双管压力表是一种常用于机车车辆上的压力表,其每只表有两套独立的测量和指示系统,文章根据JJG 52—2013《弹性元件式一般压力表、压力真空表和真空表》检定规程中对双管双针压力表双管之间示值误差和双管的连通性要求,设计制作了一种便携式的双针双管压力表快速转换接头,能够实现在同一压力源下同时检定两个管路,消除单独检定带来的误差。同时接头采用双控制阀门设计,可以方便地进行管路的通断,方便检测两个管路的连通性。
Double-needle double-tube pressure gauge is a commonly used in rolling stock pressure gauge, each table has two separate sets of measurement and indication system, the article according to JJG 52-2013 “elastic component general pressure gauge, pressure vacuum gauge and Vacuum gauge ”test procedures for double-needle double-needle pressure gauges double-tube between the value of the error and dual connectivity requirements, design and manufacture of a portable double-needle double-tube pressure gauge quick conversion adapter to achieve the same pressure At the same time under the source of two test pipeline, eliminating the error caused by separate verification. At the same time the connector with dual control valve design, you can easily pipe off, easy to detect the connectivity of the two pipelines.