13.5 mm Straight Coupling

Product Overview

The SL-70 straight coupling joins two sections of 13.5 mm poultry drinking pipe in one straight, leak-resistant joint. The white molded sleeve is about 6.3 cm long and 2.1 cm across, and each piece weighs 4.4 g. Both ends accept the pipe, so one piece links two cut ends and keeps the drinking line running in a straight uninterrupted path with no elbow, no tee and no direction change.

Straight couplings are the most-used repair part on any water line: when a pipe cracks, when a row is extended, or when a damaged section must be cut out and replaced, the coupling bridges the gap. Its simple cylindrical shape means it can be installed anywhere along the line without changing the layout, and the symmetric design removes any confusion about which end faces which direction during installation on a ladder.

Key Features and Benefits

• Straight inline join - connects two 13.5 mm pipe ends without any direction change in the loop.
• 6.3 cm sleeve length - long enough to seat both pipe ends firmly inside the coupling.
• 4.4 g light body - adds minimal weight to the suspended line between two supports.
• Symmetric design - either end can take the incoming or outgoing pipe, no orientation mistake.
• White molded finish - easy to see and keep clean during daily house inspection walks.
• No-tools installation - pushes onto the pipe by hand without clamps, glue or thread tape.

Technical Specifications

• Product name: 13.5 mm Straight Coupling (SL-70)
• Connection type: inline straight coupling
• Suits pipe size: 13.5 mm drinking pipe
• Sleeve length: about 6.3 cm
• Outer width: about 2.1 cm
• Weight: 4.4 g per piece
• Body color: white
• Material: molded plastic

Materials and Quality

The coupling is molded as one smooth white sleeve with an even wall along its full length. The internal bore matches the 13.5 mm pipe so both ends slide in to the same depth, and the uniform plastic resists cracking under normal line movement. The surface carries no glue grooves or threads, which keeps the part simple to clean and inspect. Every production run is checked for straightness, bore consistency and surface appearance before packing, so replacement couplings fit exactly like the originals already on the line.

The 6.3 cm sleeve gives each pipe end about three centimeters of seating depth, enough for a firm grip without wasting material. The 2.1 cm outer wall stays smooth and easy to wipe clean, and the white pigment lets the repair point stand out against the darker pipe during inspection.

How to Use and Maintain

Cut out any damaged pipe section square, then push the coupling over one pipe end and slide the second cut end in from the other side until both meet inside the sleeve. Add a clamp on each side if the line runs at higher pressure. During the routine flush, water passes straight through the coupling, so blockages are unlikely; still, check the joint for weeping after the first full pressure run. Keep a handful of couplings in the maintenance box for fast repairs between flocks, and store them flat so the bore stays round.

When repairing a cracked pipe, cut at least one centimeter away from the crack so the fresh ends seat properly inside the sleeve. After the repair, run the line at pressure and watch the coupling for a few minutes before hanging the nipple row back in service. Because the coupling is symmetric, mark the installed side on the maintenance checklist so future crews know where the repair point sits. Keeping a handful of these sleeves in the truck box means most line damage can be fixed between flocks without a special order.

Applications

This coupling is used whenever a 13.5 mm drinking line must be extended, repaired or reassembled: joining new row sections, replacing a cracked length, or reconnecting after a line move during house renovation. It is equally useful when a row is lengthened for more birds or shortened when the pen layout changes between flocks.

It also suits distributors as a high-volume spare part: every farm keeps a stock of straight couplings for emergency repairs, and mixed export cartons commonly include this item together with elbows, tees and end caps. Because it fits the most common pipe size on poultry farms, it moves faster than specialized fittings. Crews usually carry two or three couplings on the service truck, since a cracked sleeve or a new row join is fixed the same day the fault is found. Keeping the sleeve size marked on the box also stops the wrong coupling being picked during a rushed repair.

Why Choose Hebei Yilu Shunfeng Breeding Equipment

Hebei Yilu Shunfeng Breeding Equipment Co., Ltd. specializes in poultry drinking equipment and water line fittings for farmers and distributors worldwide. Every product is checked before shipment to ensure consistent quality, and orders are packed with export-grade packaging to protect the goods during transport. Our sales team can provide specification sheets, packing details and shipping advice for any order size. If you need more information about this coupling, packaging options or mixed container loads, please contact us.

Frequently Asked Questions

Q1: Which pipe size does this coupling join?

The sleeve is made for the standard 13.5 mm poultry drinking pipe on both ends.

Q2: How deep should the pipe go in?

Push each cut end in until it meets the center of the sleeve; both ends should seat evenly.

Q3: Can it be used to repair a cracked pipe?

Yes, cut out the cracked section and bridge the gap with this coupling, adding clamps if needed for pressure.

Q4: Does the coupling change the flow?

The straight through bore keeps the water path continuous, so flow is not restricted at the joint.