Pipeline / Corrosion Protection Products
Heat Shrink Sleeve for Post-tensioning
post-tensioning-duct-joint-product-features.jpg
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.
SELECTION CHART
All dimensions are in mm
- Code
- D Min (mm)
- d Max (mm)
- T±10% (mm)
- Length/Pc. (mm)
- GMW 70/22
- 70
- 22
- 2.7
- 300
- GMW 90/28
- 90
- 28
- 3.0
- 300
- GMW 105/30
- 105
- 30
- 3.0
- 300
- GMW 115/34
- 115
- 34
- 3.2
- 300
- GMW 130/36
- 130
- 36
- 3.2
- 300
- GMW 140/42
- 140
- 42
- 3.2
- 300
- GMW 160/50
- 160
- 50
- 3.3
- 300
- GMW 180/55
- 180
- 55
- 3.3
- 300
- GMW 200/60
- 200
- 60
- 3.5
- 300
- GMW 250/70
- 250
- 70
- 3.5
- 300
- GMW 320/90
- 320
- 90
- 3.5
- 300
- GMW 375/110
- 375
- 110
- 3.5
- 300
- GMW 425/125
- 425
- 125
- 3.5
- 300
- GMW 550/157
- 550
- 157
- 3.5
- 300
- GMW 680/200
- 680
- 200
- 3.5
- 300
- GMW 760/215
- 760
- 215
- 3.5
- 300
- GMW 863/250
- 863
- 250
- 3.5
- 300
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℃ for 500 hrs)
- ASTM D2671
- Tensile Strength
- 14 Mpa (N/mm2 ) (min.)
- ASTM D638
- Ultimate Elongation
- 300 % (min.)
- ASTM D638
- Low Temperature Flexibility
- No Cracking
- ASTM D2671
- (-40℃ for 4 hrs.)
- Heat Shock (250℃ for 30 min.)
- No cracking or flowing
- ESI 09-11
- Shrink Tempera ture
- 125℃
- IEC 216
- Continuous Temperature Limit
- -40 to +110℃
- 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
Products
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
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
