Electrofusion fittings

In order to achieve a proper fit, please follow the steps described below:


1. Cut the pipe at 90° angle to its axis using a saw for plastics – it should be fitted with a perpendicular position attachment; you can also use a PE miter saw. An incorrect cut may result in heater exposure, and thus overheating and leaks during fusion.

2. Measure out and mark the fusion zone for couplers, tees, reducers; mark the insertion depth and branch surface (if branches are applied). On the marked zone peel away the layer of oxidized PE using a hand scraper or a peeling tool (do not use sand paper). Make sure to peel the pipe properly, in order to ensure a tight fusion.

3. Double-check pipe dimensions (in particular the outside diameter) and ovality in accordance with Polish standards PN-EN12201 and PN-EN1555. Should ovality exceed 1,5% or ≥ 1,5 mm, apply rounding rings. In case dimensions are incompliant with the standards, do not commence the fusion process.

4. Degrease the pipes and coupling directly prior to assembly. To that end, use disposable cleaning tissues soaked with cleaning agent for PE.

5. When pipes are clean and grease-free, slide them into the coupling (until they reach the inside retainer); double check the insertion depth against markings made in the previous step. Make sure to neutralize any stress on all the elements to be welded. It is advised to use a clamp to prevent elements from moving while fusing and/or cooling. A dislocation or any stress may cause dangerous leakage and a defective fusion,

6. The fusion. Proceed with the fusion process strictly following the electrofusion processor manual. Enter parameters manually or read barcode. Couplings are fitted with melt indicators, which enable you to control the fusion cycle. The indicators do not, however, guarantee the fusion quality, as readings may vary depending on the gap between the pipe and the coupling. Follow Health & Safety regulations at all times.

7. Branch fusion. Follow steps 2 and 4, and mount the branch and a clamp onto the pipe. Proceed with fusing as described in step 6. Only after the elements have been fused and cooled can you drill an opening in the pipe. To avoid damage to the branch, it is advised to insert a thin-wall pipe first, followed by the drill.

8. Fusing saddle tee adaptors (tapping operation)

Follow steps 2 and 4, and mount the saddle the adaptor onto the pipe by way of a clamp. Proceed with the fusion.

After the pipe has cooled down, open the top nut to see an integral cutter inside. Rotate the cutter until firm against the upper stop. Reverse so it reaches the upper socket. Put back the nut and screw it down tight.

Attention! Keep all elements clean and free of any debris.