The Dura Barbed Elbow (Insert x Insert) is the standard solution for creating secure 90-degree corners in your poly piping system. Manufactured from high-impact grey PVC, this fitting allows you to make sharp turns in your polyethylene tubing without kinking or restricting water flow. To ensure your system operates safely within the pressure limits of these connections, we highly recommend installing a pressure regulator upstream.
Known for their durability and "bite," Dura insert fittings feature sharp, multi-barb ridges that grip the inside of the tubing wall. While these are some of the most reliable irrigation fittings on the market for agricultural and commercial applications, they must be secured with hose clamps to ensure a permanent, leak-proof connection under pressure.
Manufactured by Dura Plastic Products in the USA.
| Specification | Details |
|---|---|
| Manufacturer | Dura Plastic Products |
| Material | Schedule 40 PVC (Grey) |
| ASTM Standard (Material) | ASTM D-1784 (Cell Class 12454) |
| ASTM Standard (Fitting) | ASTM D-2609 (Plastic Insert Fittings for PE Pipe) |
| Max Temperature | 140°F (60°C) |
| Operating Pressure | Subject to Poly Tubing & Clamp Rating (Typically <100 PSI) |
| Origin | Made in the USA |
| Product Dimensions & MPNs | |
| Size (Tubing ID) | Manufacturer Part Number (MPN) |
| 1/2" | 1406-005 |
| 3/4" | 1406-007 |
| 1" | 1406-010 |
| 1 1/4" | 1406-012 |
| 1 1/2" | 1406-015 |
| 2" | 1406-020 |
Note: Larger diameter tubing (1" and up) can be stiff. Warming the tubing ends is highly recommended.
Step 1: Prep the Tubing
Cut your poly tubing squarely at the point where you need the turn. Crucial: Slide a stainless steel hose clamp onto each section of tubing before inserting the fitting.
Step 2: Soften the Ends (Optional but Recommended)
Dip the end of the tubing in hot water (or use a heat gun carefully) for 10-15 seconds. This expands the poly and makes insertion significantly easier.
Step 3: Insert the Elbow
Push the barbed ends of the elbow completely into the tubing until the tubing hits the stop (body of the fitting). A rocking motion helps work the barbs in.
Step 4: Secure the Clamps
Slide the hose clamps into position over the barbed area. Tighten firmly with a nut driver or screwdriver until the clamp bites slightly into the tubing.
Ensure this fitting matches your system:
Ensure a leak-free installation with these essential components:
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