| abstract |
The present invention addresses the problem of providing a resin end-face butt joint, a method for welding this joint, and a piping member, with which it is possible to ensure a sufficient clamping margin with the clamp of a typical welding machine and to ensure an appropriate distance between the centers even when joints having a short tubular welding ring part is welded, and with which it is possible to align the centers by positioning the centers along the same axis. The means for solving this problem is a resin end-face butt joint for which multiple welding ring parts (13, 14) which communicate with a flow path (15) within a joint base part (12) are provided on the joint base part, and fastening parts (18, 19) are provided so as to be concentric with at least one of these welding ring parts at the outer end of the joint base part, for the purpose of clamping a welding machine. |