Lateral Barbed & Lock Fittings

In drip irrigation, 16 and 20 mm lateral tubing and driplines are joined with small plastic fittings. A coupling joins two lengths or repairs a cut pipe, an elbow turns the line, a tee takes a branch and an end plug closes the end of the line. In our catalogue these fittings have polypropylene bodies.

They come in two types. The barbed type has ridged ends that the pipe is pushed onto, held firm by water pressure. The lock-nut type has a nut that tightens over the pipe and locks it; it is more secure at higher pressures and where the pipe is moved often.

Our rows cover all four parts (coupling, elbow, tee and end plug) for 16 and 20 mm pipe, in both barbed and lock-nut versions. The fitting size must match the outside diameter of the lateral tubing.

In your enquiry give the part, diameter, barbed or lock-nut and quantity. To connect the lateral to the PE sub-main use a start connector or off-take valve, and to close the end of a line you can also use a figure-8 end closure.

Cut the lateral end square and push it fully over the barb. In cold weather pushing the pipe onto the barb is harder; warming the pipe end in hot water makes it easier. On the lock-nut type, tighten the nut by hand and do not use a wrench, so the plastic thread is not damaged.