8 1 2015 BRG PREMANT district heating pipe PRE Subject to technical changes 1 PE shrink sleeve non cross linked The non cross linked shrink sleeve consists of a heat shrunk PE sleeve pipe and the following accessories Shrink on collars Permanently elastic sealing strip butyl rubber Venting plug Welded in PE plug The shrink sleeves are pushed onto the casing pipe when the pipe is being laid before the medium pipe weld seams are made The connec tion points are then fitted with additional insulation by trained fitting staff who have been tested as per AGFW Worksheet FW 603 This produces a watertight non positive connection between the casing pipe and the sleeve The sealing strip and the shrink on collars are used to double seal the sleeve joint Technical requirements as per EN 489 AGFW Worksheet FW401 parts 6 14 16 and 17 2 Shrink sleeve made of cross linked PE The cross linked shrink sleeve consists of molecular cross linked poly ethylene so only limited welding is possible The very high shrinkage capacity of this material combined with the sealing strip inserted between the casing pipe and the sleeve produce a very strong non positive connection Because this type of sleeve can withstand high mechanical loads it is especially suitable for plastic casing pipe sections that are subject to higher stresses e g frequent load alternation pipes laid in the groundwater zone Sleeve joint Shrink sleeve non cross linked cross linked 6 340 Nominal width 90 1200 Length 700 1000 1400 mm Nominal width 90 1200 Length 700 mm

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