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Pipeline / Corrosion Protection Products

Heat Shrinkable Coupler (for pipe connection)

Heat Shrink Coupler is a Tubing suitable to joint Corrugated HDPE pipes, used in Water management, Irrigation, Sanitary, Sewer and Drainage, Construction, Mining industries, Ducting and for underground Cable protection.

These tubes are manufactured from high quality Cross-linked Polyolefin material. Hot melt adhesive lining provides 100% sealing according to IP 68 (Ingress Protection).

It is feasible and the most economic jointing solution compared to Conventional Butt welding or using Snap Fit Coupler or Split coupler.

Features & benefits :
  • Easy & Quick Installation. No special skill required.
  • High resistance to Impact & Abrasion.
  • Suitable for Wet and Dry underground conditions.
  • Joint in-line with pipe.
  • Superior elastomeric characteristics allows better conformance over irregular contours.
  • High Shrink ratio (3:1) helps to reduce the stock requirements with few sizes covering greater pipe application range.
  • Resistant to Heat, UV rays, Vibration, Sand-blasting & Harsh Industrial conditions.
  • Customized dimensions, length & colour available.

Technical Qualification Report : QR 1021

SELECTION CHART

All dimensions are in mm

  • Code
  • D Min (mm)
  • d Max (mm)
  • T±10% (mm)
  • Spool length (mtr)
  • GMW 70/22
  • 70
  • 22
  • 2.7
  • 1200
  • GMW 90/28
  • 90
  • 28
  • 3.0
  • 1200
  • GMW 105/30
  • 105
  • 30
  • 3.0
  • 1200
  • GMW 115/34
  • 115
  • 34
  • 3.2
  • 1200
  • GMW 130/36
  • 130
  • 36
  • 3.2
  • 1200
  • GMW 140/42
  • 140
  • 42
  • 3.2
  • 1200
  • GMW 160/50
  • 160
  • 50
  • 3.3
  • 1200
  • GMW 180/55
  • 180
  • 55
  • 3.3
  • 1200
  • GMW 200/60
  • 200
  • 60
  • 3.5
  • 1200
  • GMW 250/70
  • 250
  • 70
  • 3.5
  • 1200
  • GMW 320/90
  • 320
  • 90
  • 3.5
  • 500
  • GMW 375/110
  • 375
  • 110
  • 3.5
  • 500
  • GMW 425/125
  • 425
  • 125
  • 3.5
  • 500
  • GMW 550/157
  • 550
  • 157
  • 3.5
  • 500
  • GMW 680/200
  • 680
  • 200
  • 3.5
  • 500
  • GMW 760/215
  • 760
  • 215
  • 3.5
  • 500
  • GMW 863/250
  • 863
  • 250
  • 3.5
  • 500
TECHNICAL SPECIFICATION
  • Properties
  • Value
  • Standard
  • Physical
  •  
  •  
  • Tensile Strength
  • 20 Mpa (N/mm2) (min.)
  • ASTM D638
  • Ultimate Elongation
  • 350% (Min.)
  • ASTM D638
  • Longitudinal Change
  • -10% (Max.)
  • ASTM D2671
  • Hardness
  • 45 ± 10 Shore D
  • ASTM D2240
  • Water Absorption
  • 0.5 % (max.)
  • ASTM D570
  • Thermal
  •  
  •  
  • Accelerated Ageing
  • (120°C for 500 Hrs)
  • ASTM D2671
  • Tensile Strength
  • 8 N/mm2 (Mpa) (min.)
  • ASTM D 638
  • Ultimate Elongation
  • 250%(Min.)
  • ASTM D638
  • Low temperature Flexibility (-40oC for 4 Hrs.)
  • No Cracking
  • ASTM D2671
  • Heat Shock (250oC for 30 Min.)
  • No Cracking or flowing
  • ESI 09-11
  • Shrink Temperature
  • 125oC
  • IEC 216
  • Continuous Temperature limit
  • -40oC to + 110oC
  • IEC 216
  • Electrical
  •  
  •  
  • Dielectric Strength
  • 15 KV/mm. (Min.)
  • ASTM D149
  • Volume Resistivity
  • 1 x 1014 Ohm.cm(min.)
  • ASTM D257
  • Dielectric Constant
  • 5 (Max.)
  • ASTM D150
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