Application Medium and high-voltage switchgear Special features Functional check or recalibration possible without dismounting,in accordance with EU regulation No. 517/2014 on fluorinated greenhouse gases. People can operate independently without disassembling the screws,which saves effort and time. It can facilitate on-site personnel to measure micro-water and supplement air for switch. Avoid surface scoring and joint damage from disassembly Test connection from stainless steel pipe/or copper pipe for testing other parameters