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MPJ - PE Pipe Pre-Assembly
Pre-assembly of pipes. Cut the pipe al the nght angle to its axis using a plastic cutting machine, equipped with a perpendicular positron controller or a PE pipe cutter. Incorrect pipe cut may results in heater exposition, which will cause overheating and burrs dunng fusing.
Measure out the fusing area for couplers, tees, reducers, pipe insertion depth, pipe areas to be covered by branch fittings. Remove the layer of oxidized polyethylene from the pipe area designated for fusing by use of scraper (sand paper is not allowed). Leaving the surface as it is or removing only some section of the oxidized film may results in untight fusion.
Verify pipe dimensions (outside ones in particular) and ovaltty as well as compliance with the requirements of PN-EN12201 and PN-EN1555 standards. It the ovahty deviatesby more than 1,5% d or > 1.5 mm. rounding nngs should be applied. If the dimensions is incomphant with the requirements, fusing should not be started.
Prior to the assembly, remove oil and oltier contaminants from the pipe and fitting inside surfaces using tissue with special PE deaning agent