Copper Elbow Long Radius (LR) is installed between pipes to change the direction of the pipe by 90°. Its centreline radius is 1.5 times than the diameter of the pipe. This is often used in piping as pressure loss is less as compared to short radius elbow.

COPPER TUBE SOFT DRAWN
Copper Tube Soft Drawn is a small bore tube supplied in coil form in lengths up to 15m which can be bent easily by hand