Compression elbows and tees for pipework

Elbows and tees are the fittings that give a pipe run its shape. Elbows redirect the run — almost always at 90 degrees. Tees create a branch, either splitting a single run into two or introducing a feed from a side connection. Both use the same compression fitting mechanism: slide the fitting onto the pipe, push the nut on, tighten.

The compression principle means no soldering and no heat. That makes them the right choice for retrofits, repairs in confined spaces, and any installation where a blowtorch would be impractical or prohibited. Standard sizes are 15mm and 22mm for copper pipe, covering the two most common diameters in UK domestic and light commercial systems.

Fitting is straightforward but the torque matters. Finger-tight plus a quarter to half turn with a spanner is the standard method. Overtightening deforms the olive too far and can split the fitting body; undertightening leaves the joint liable to weep. If a joint leaks after assembly, do not add more turns — disassemble, replace the olive, and refit.