Product code: 544157
This copper Center CB 42 x 28mm internal solder ring (ISR) reducer has compact dimensions and a lightweight design for easy handling and installation even where space is limited. Designed with smooth lines to minimise flow restrictions, this fitting is unobtrusive on exposed pipelines. The ISR is a precision-made fitting containing a ring of high quality lead solder in each capillary socket, creating a perfect joint with no need to end feed additional solder. A solder joint is created through the principal of capillary action, when the fitting and tube is assembled and heated to the appropriate temperature, solder becomes molten and is drawn into the gap between tube and fitting for a durably reliable joint.