Nordic wires insul white 7 16 6 17 5 4 Cu wires insul green Sensor wires NiCr insul red Nordic wires insul white 13 12 14 10 Cu wires insul green Sensor wires NiCr insul red Tungsten inert gas welding 1 9 8 6 7 3 2 11 10 4 5 Tungsten inert gas welding X 14 1 12 9 8 3 2 4 7 5 13 10 11 1315 Y 21 8 2014 FLEXWELL district heating cable FHK Subject to technical changes 5 325 Connector PN 25 Types 30 91 to 200 310 G versions welded Note For pressure tests in a partially filled trench or with unsupported connectors max permitted pressure 0 5 bar overpressure Nominal widths pipe connection dimensions FHK type 30 91 39 116 60 148 75 171 98 171 127 220 147 220 200 310 98 220 Comparable nominal width DN 25 32 50 65 80 100 125 150 Pipe connection dimensions mm 33 7 x 2 6 42 4 x 2 6 60 3 x 2 9 76 1 x 2 9 88 9 x 3 2 114 3 x 3 6 139 7 x 4 9 168 3 x 4 5 Structure 1 Connecting piece with weld on end 2 P rotective cap 3 Threaded component R 4 Permanently flexible jointing compound 5 Shrink hose 6 Monitoring wire leadthrough R 7 Sealing ring 8 Shrink hose 9 P TFE hose line 10 Monitoring wires 11 Shrink hose 12 Comp ression joint 13 Shrink hose 14 Insulation Structure 1 Connecting piece with weld on end 2 P rotective cap 3 Reduction nipple 4 P TFE hose line 5 Monitoring wires 6 Comp ression joint 7 Glass fiber hose 8 Sealing ring 9 Screwed cable joint 10 Permanently flexible jointing compound 11 Shrink on collar 12 Weld seam protective cap connection piece 13 Weld seam protective cap outer corrugated pipe 14 Weld seam black white 15 Weld seam white white 16 Shrink hose 17 Insulation Detail Y Detail X FLEXWELL district heating cable type FHK 200 310 FLEXWELL district heating cable types 30 91 to 147 220

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