Heat Shrink Sleeve for Post Tensioning Duct Joint
Heat Shrink Coupler is a Tubing used for jointing the posttensioning ducts to ensure leak tightness of connections between two consecutive portion of duct.
These tubes are manufactured from high quality Cross-linked Polyolefin material. Hot melt adhesive lining provides 100% sealing according to IP 68 (Ingress Protection). Heat Shrink Couplers ensure a tight seal around the pre-stressing duct connections.
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 Specification | ||
|---|---|---|
| PROPERTIES | VALUE | STANDARD |
| Physical | ||
| Tensile Strength | 20 Mpa (N/mm 2) (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 | (1200C for 500 hrs) | ASTM D2671 |
| Tensile Strength | 14 Mpa (N/mm2 ) (min.) | ASTM D638 |
| Ultimate Elongation | 300 % (min.) | ASTM D638 |
| Low Temperature Flexibility (-40 C for 4 hrs.) |
No Cracking | ASTM D2671 |
| Heat Shock (250 C for 30 min.) |
No cracking or flowing | ESI 09-11 |
| Shrink Temperature | 1250C | IEC 216 |
| Continuous Temperature Limit | -40 to +1100C | IEC 216 |
| Electrical | ||
| Dielectric Strength | 12 KV/mm.(min) | ASTM D149 |
| Volume Resistivity | 1 x 1014 Ohm.cm (min) | ASTM D257 |
| Dielectric constant | 5 (max.) | ASTM D150 |
Selection Chart
- Code
- D min
(mm) - d max
(mm) - T±10%
(mm) - Length/Pc.
(mm)
- GCMW 70/22
- 70
- 22
- 2.7
- 300
- GCMW 90/28
- 90
- 28
- 3.0
- 300
- GCMW 105/30
- 105
- 30
- 3.0
- 300
- GCMW 115/34
- 115
- 34
- 3.2
- 300
- GCMW 130/36
- 130
- 36
- 3.2
- 300
- GCMW 140/42
- 140
- 42
- 3.2
- 300
- GCMW 160/50
- 160
- 50
- 3.3
- 300
- GCMW 180/55
- 180
- 55
- 3.3
- 300
- GCMW 200/60
- 200
- 60
- 3.5
- 300
- GCMW 250/70
- 250
- 70
- 3.5
- 300
- GCMW 320/90
- 320
- 90
- 3.5
- 300
- GCMW 375/110
- 375
- 110
- 3.5
- 300
- GCMW 425/125
- 425
- 125
- 3.5
- 300
- GCMW 550/157
- 550
- 157
- 3.5
- 300
- GCMW 680/200
- 680
- 200
- 3.5
- 300
- GCMW 760/215
- 760
- 215
- 3.5
- 300
- GCMW 863/250
- 863
- 250
- 3.5
- 300
Products
Heat Shrinkable Moulded Shapes
Heat Shrink Tubes / Heat Shrink Sleeves
- Advantages Of Heat shrink Tubing
- Thin Wall Tubes
- GDW : Dual Wall Tubing
- Medium/Heavy Wall Tubes-Commercial
- Heat Shrink Co-extruded Tubing Premium Quality
- Red Insulation Tubes
- Non Tracking Tubes
- Busbar Sleeves
- Stress Control Tube
- Integrated Stress Control Tube-GVOT Tube
- Heat Shrink Double Layer Tube-GDTL Tube
- High Shrink Ratio Heat Shrink Tube
Switchgear Insulation Products
- Barrier Board Sheet
- End Sealing Kit for Extensible RMU/GIS Bushing
- Heat Shrink Bus Bar Sleeve
- Bus Bar Insulating Shrouds
- Bus Bar Insulating Shrouds Polyolefin
- Bus Bar End Caps
- Thin wall tube wire marking
- Heat Shrink Tape (Bustape)
- Insulation for Circuit Breakers
- Busbar Sleeve for 66 kV
- Bushing Boot
- Non Shrinkable High Voltage Tape
- Heat Shrinkable Gland
