在化工机械厂经常碰到换热管组焊后进行气压或水压试验.由于其(?)端(?)法兰盘联接,给试验带来困难.以前是在两端加焊两节同规格的管,并加焊(?)管端法兰,这样试验完毕后,还需切除这两部分,并磨平切口、费工费时费料,为此,我设计了如图所示的接头.使试验变得方便易行了。 In the chemical plant often met after the heat exchange tube group pressure or hydrostatic pressure test due to its (?) End (?) Flange connection to the test to bring difficulties in the past is to add two welding at both ends of the same Specifications of the pipe, and welding (?) Pipe end flange, so after the test is completed, the need to remove these two parts, and smoothing incision, time-consuming and laborious labor costs, for which I designed the connector as shown Make testing easy and easy.