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Shrinkable muffs

HDPE shrinking muffs are widely used in preinsulated pipelines against the corrosion and for mechanical protection of the jointing area between contiguous pipes where, due to the cut back of the polyethylene casing, the insulation should be done on site after the welding of the inner steel pipes.

TECHNICAL MPROPERTIES
   Raw material HDPE
   Standard lengths
500 - 600 - 700 mm
   Packing LDPE white foil
   Sand box test download
100 cycles according EN 489
   Pre-applied mastic
upon request
shmuff
DIMENSIONS
DEpipe [mm]DImin [mm]Smin [mm]
90 100 3.0
110 120 3.0
125 136 3.0
140 152 3.0
160 170 3.0
180 192 3.0
200 215 3.2
225 240 3.5
250 264 3.9
280 296 4.4
315 326 4.9
DEpipe [mm]DImin [mm]Smin [mm]
355 375 5.6
400 420 6.3
450 470 7.0
500 526 7.8
560 586 8.8
630 655 9.8
710 745 11.0
800 840 12.5
900 945 14.0
1000 1045 15.0
Other dimensions upon request
REFERENCE STANDARDS
   EN 489 District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene