Threaded-Branch Compression Tee & Elbow

A threaded-branch tee is a compression tee whose two run ends close onto PE pipe while the third outlet is threaded. A threaded elbow has one compression end and one threaded end and turns the line through 90 degrees. These parts are used where a valve, air valve, pressure gauge or threaded pipe has to be fitted right at the branch or bend.

Using one threaded tee instead of a plain compression tee plus a separate adaptor means fewer parts and joints and a lower chance of leaks. In irrigation networks it is widely used to fit an air valve on the main line or an outlet valve at the head of each block.

The published rows cover 20, 25, 32, 40, 50, 63, 75, 90 and 110 mm with the matching market thread size; for every diameter both a tee and an elbow, with a male or female thread. For example a 63 mm tee with a 2 inch outlet or a 32 mm elbow with a 1 inch outlet.

If you need a smaller outlet, such as a 63 mm tee with a 3/4 inch outlet for an air valve, put the combination in your enquiry. State the part (tee or elbow), pipe diameter, thread size and type, and quantity.

The most common use of a threaded tee in orchards is fitting an air valve, pressure gauge or drain valve on the PE main. The threaded elbow is used mostly at the start of the line and next to the pump, where the PE pipe has to meet a threaded metal part through a 90 degree turn.

In both cases, support the heavy threaded part separately so its weight does not rest on the plastic joint. Seal the threads with PTFE tape and check the compression nut once more after the first filling.