The external thread nipple is a kind of fittings commonly used in industrial pipeline connection. The common thread nipple is divided into double head external thread, single head external wire and flat head external thread, and the short joint connected by flange is also available.
The external thread nipple is divided into tubing nipple and casing nipple. In the connection of pipe fittings, the flanging nipple is commonly used with the flange, which is set in the inner space of the flange, and then the tail is welded with the steel pipe. At this time, the flange can be moved. As long as it is a flange of one specification, it can be connected at any time The purpose is that the flange can be moved. The short pipe is a short section of oil pipe. Compared with the oil pipe, the length is different, and the others are the same. Length: 0.25 m, 0.5 m, 1 m, 1.5 m, etc., which are used to assemble and match the well string.
