法蘭端 flanged end
坡口端 beveled end (BE)
對焊端 butt welded end
平端 plain end (PE)
承插焊端 socket welding end
螺紋端 threaded end (TE)
承口 bell end
焊接端 welding end
法蘭連接（接頭） flanged joint
對焊連接（接頭） butt welded joint
螺紋連接，管螺紋連接 threaded joint, pipe threaded joint
錐管螺紋密封焊連接 seal-welded taper pipe threaded joint
承插焊連接（接頭） socket welded joint
承插連接（接頭） bell and spigot joint
環墊接頭 ring joint (RJ)
萬向接頭 universal joint
軟釬焊連接（接頭） soldered joint
搭接接頭，松套連接 lapped joint
外側厚度切斜角 bevel for outside thickncss
內側厚度切斜角 bevel for inside thickness
內外側厚度切斜角 bevel for combined thickness
法蘭式的 flanged (FLGD)
對焊的 butt welded (BW)
螺紋的 threaded (THD)
承插焊的 socket welded (SW)
小端為平的 small end plain (SEP)
大端為平的 large end plain (LEP)
兩端平 both ends plain (BEP)
小端帶螺紋 small end thread (SET)
大端帶螺紋 large end thread (LET)
兩端帶螺紋 both end thread (BET)
一端帶螺紋 one end thread (OET)
支管連接 branch connection
焊接支管 branch pipe welded directly to the run pipe