25 mm to 20 mm Variable Connector with Nipple Drinker

Product Overview

The SL-130 variable connector joins a 25 mm main water line to a 20 mm section and carries a red nipple drinker valve directly on its branch port. The translucent white body shows the internal water passage, while the red nipple makes the drinking point immediately visible to birds and staff alike. Overall dimensions are about 7.2 cm by 6.5 cm, and the fitting is shown in both 25 mm and 20 mm variants so customers can pick the exact bore they need for their house design.

This part combines two jobs in one body: it adapts between the two common large-line diameters and it provides a sealed mounting point for a nipple drinker. That removes the need for a separate adapter plus a separate nipple socket, which lowers leak points and shortens installation time on the main overhead drinking line. The translucent shell also lets the operator confirm that water reaches the nipple seat before the birds are placed.

Key Features and Benefits

• Two line sizes covered - offered for both 25 mm and 20 mm mains to match different house designs and pipe ages.
• Integrated nipple port - the red drinker valve mounts directly on the branch, saving extra adapters and joints.
• Translucent body - lets operators see water flow and check for air locks or blockages at a glance.
• Red nipple identification - each drinking point stands out along the line for quick inspection.
• Compact footprint - the 7.2 cm by 6.5 cm body fits in standard suspended-line spacing between supports.
• Fewer leak points - one molded junction instead of several assembled parts on the main loop.

Technical Specifications

• Product name: 25 mm and 20 mm Variable Connector (SL-130)
• Connection type: variable tee with nipple port
• Line sizes: 25 mm and 20 mm variants
• Overall dimensions: about 7.2 cm by 6.5 cm
• Drinker: red nipple valve fitted on the branch
• Body color: translucent white
• Material: molded plastic

Materials and Quality

The connector body is molded in translucent plastic that stays stable under continuous indoor humidity. The branch socket and the nipple valve are matched in size so the red drinker seats evenly without cross-threading or wobble. The translucent wall is thick enough to resist cracking when the line is lifted or lowered during height adjustment for growing birds. Each unit is pressure-checked visually and sorted for appearance before packing, and the nipple valve itself is inspected for smooth pin movement so it releases water cleanly when touched.

Because the body carries both a large socket and a small branch socket, the wall thickness is balanced so neither side flexes under the weight of the main pipe. The same translucent resin is used across the large-line range, so this connector behaves consistently with the couplings and reducers installed alongside it.

How to Use and Maintain

Slide the main pipe ends onto the matching 25 mm or 20 mm sockets and secure with appropriate clamps if needed. Make sure the red nipple valve points downward at the correct drinking angle for the bird type. During routine cleaning, flush the whole line and check that the nipple pin moves freely; replace the red valve if it sticks or drips continuously. When adjusting line height for flocks at different ages, lower the line smoothly so strain on the branch port is avoided, and support the main pipe near the connector.

After the first fill, watch the translucent body for a few minutes: any trapped air usually works its way out through the nipple. If the nipple drips instead of shutting cleanly, check that the valve is fitted squarely in the branch port before replacing the whole unit. During line flushing cycles, let the water run until the nipple snaps shut firmly, which confirms the pin is free. Keep a few spare red nipple valves in the maintenance box so a faulty drinker point is fixed without changing the connector.

Applications

This variable connector is used on overhead nipple drinking lines in broiler houses, layer houses and breeder farms where the main loop steps between 25 mm and 20 mm diameters and a nipple must be placed right at the transition point. It is also suited to houses where long rows demand a large supply loop near the pump and smaller distribution runs toward the far end.

It also suits upgrade projects on existing houses, where builders reuse part of the old 25 mm loop and join it to newer 20 mm sections while keeping full nipple coverage. Distributors recommend stocking both bore variants together so field technicians can match the exact pipe on site without a return trip.

Why Choose Hebei Yilu Shunfeng Breeding Equipment

Hebei Yilu Shunfeng Breeding Equipment Co., Ltd. specializes in poultry drinking equipment and main 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 connector, packaging options or mixed container loads, please contact us.

Frequently Asked Questions

Q1: Does the nipple drinker come fitted?

The product is shown with the red nipple valve mounted on the branch port; confirm the nipple model with our sales team when ordering.

Q2: Which line diameters does it fit?

The connector is produced in a 25 mm variant and a 20 mm variant; choose the one matching the main pipe on the order.

Q3: Why is the body translucent?

The translucent plastic lets staff see whether water is flowing and whether air or sediment is trapped inside the junction.

Q4: Can the nipple be replaced separately?

Yes, standard matching nipple valves can be unscrewed or pushed out and replaced without replacing the whole connector body.