Copper Tubing Africa SRSCF Reducing Straight Coupler (2 Sizes)
The most common method of joining copper tube is with the use of a socket-type, copper or copper alloy capillary fitting into which the tube sections are inserted and fastened by means of filler metal, using either a soldering or brazing process.
This type of joint is known as a capillary joint because the socket of the fitting overlaps the tube end and space is formed between the tube and the fitting. This space is called the capillary space. The surfaces of fitting and tube that overlap to form the joint are known as the faying surfaces. Tube and fitting are then solidly joined using a filler metal that is melted into the capillary space and adheres to these surfaces.