Tubular body having pipe joint member attached thereto with brazing ring

A structure for connection to a tubular body having an internal fluid passage and having a curved, circular-arc cross section peripheral wall with a cylindrical exterior surface and having a hole extending radially therethrough from said exterior surface of said passage, comprising:

• a pipe joint member for fluid communication with the interior of said tubular body, having an internal passage extending from a first and configured for insertion into said hole in said tubular body to a second end configured for connection to a fluid pipe, and an outwardly extending flange between said first and second ends, and
• a separate brazing ring for positioning around said first end of said pipe joint member adjacent said flange, having a first surface for contact with said flange and having a curved second surface for contact with said exterior surface of said peripheral wall of said tubular body when said first end is inserted into said hole of said tubular body and having a hole through which passes said first end of said pipe joint member;
• braze cladding means on an inner surface of said hole of the brazing ring and on said second surface of said brazing ring for connecting said pipe joint member to said tubular body by brazing such that said first ring surface if brazed to said flange and said second ring surface is brazed to said exterior surface of said tubular body.