Lock-Ring Straight Coupling for Irrigation Lines

Build a secure irrigation connection

A straight lock-ring coupling reconnects two matching irrigation line ends. Use it to replace a damaged section or extend a row while keeping the connection in line. The retaining rings secure the seated line on each side.

Choose the correct fit

Both ends must suit the same selected connection size. Measure the line and check its wall thickness and connection style. The 16 mm option has a slender body; larger options use a different body shape. A nominal diameter alone does not establish compatibility with every tape or tube of that size.

Available connection sizes

16 mm, 25 mm, 28 mm, 32 mm, 40 mm, 50 mm and 63 mm. Select the required option when ordering. Supplied as one selected fitting.

Install and check the joint

Cut out damaged material, leaving clean, square ends. Check that the remaining line reaches the coupling without tension. Seat each end fully and secure the retaining rings. Support the joined section so movement of the row does not pull directly on the fitting.

Run water through the assembled line and inspect both connection points during the first irrigation cycle. Stop the supply before adjusting a joint. Use the fitting within the operating limits of the matched line and system components; no pressure rating is specified for this item.

Common questions

Does this reduce the line size?

No. This is a matching-size connection. Choose a reducing connection if the two line ends have different diameters.

What should I check before buying?

Confirm the connection size, mating line type and sufficient access to seat and secure the fitting. Replace torn or distorted line ends before assembling the joint.