Heatshrink Tubes | Thin & Thick Wall Heatshrinkable Tubings

Thorne & Derrick – Approved Specialist Distributors To The Rail Industry | LV MV HV
Heatshrink Tube
Thin Wall Flame Retarded 2:1 Shrink Ratio

Heatshrink Tubes
The below table features technical specification for heatshrinkable polyolefin tube with thin wall and flame retarded 2:1 shrink ratio – typically installed using heat shrink gas torches to provide cable insulation, repair and identification.
Other Heat Shrink Cable Joints For Rail Cable Connections
Cable accessories with Network Rail approvals manufactured by 3M Electrical and using cold shrink are also available to joint, terminate, insulate and repair damaged cables.
PART NUMBER | P.A.D.S CAT. NO | EXPANDED DIAMETER | RECOVERED DIAMETER | STANDARD LENGTH | RECOVERED THICKNESS | HEAT SHRINK COLOUR RANGES |
TWM 48 | 54/73439 | 4.8mm | 2.4mm | 60mtr | 0.51mm | RED YELLOW BLUE BLACK CLEAR GREEN/YELLOW |
TWM 64 | 54/73440 | 6.4mm | 3.2mm | 60mtr | 0.64mm | |
TWM 95 | 54/72441 | 9.5mm | 4.8mm | 60mtr | 0.64mm | |
TWM 127 | 54/73442 | 12.7mm | 6.4mm | 60mtr | 0.64mm | |
TWM 191 | 54/73443 | 19.1mm | 9.5mm | 60mtr | 0.76mm | |
TWM 254 | 54/44058 | 25.4mm | 12.7mm | 30mtr | 0.89mm | |
TWM 381 | 54/44059 | 38.1mm | 19.1mm | 30mtr | 1.02mm | |
TWM 508 | 54/44060 | 50.8mm | 25.4mm | 30mtr | 1.14mm |
Heatshrinkable Polyolefin Tube
Thick WalL 3:1 Shrink Ratio sealant lined
The below table features technical specification for heatshrinkable polyolefin tube with thick wall 3:1 shrink ratio sealant lined.
PART NUMBER | P.A.D.S CAT. NO | EXPANDED DIAMETER | RECOVERED DIAMETER | STANDARD LENGTH | RECOVERED THICKNESS | HEAT SHRINK COLOUR RANGES |
TMI 12-3 | 54/73436 | 12mm | 3mm | 1500mm | 2.0mm | BLACK ONLY |
TMI 22-6 | 54/73431 | 22mm | 6mm | 1500mm | 2.5mm | |
TMI 33-8 | 54/73432 | 33mm | 8mm | 1500mm | 3.2mm | |
TMI 45-12 | 54/73433 | 45mm | 13mm | 1500mm | 4.1mm | |
TMI 55-16 | 54/73434 | 55mm | 16mm | 1500mm | 4.1mm | |
TMI 69-22 | 54/73435 | 69mm | 22mm | 1500mm | 4.1mm | |
TMI 95-30 | 54/73437 | 95mm | 30mm | 1500mm | 4.3mm | |
TMI 130-36 | 54/73430 | 130mm | 36mm | 1500mm | 4.3mm | |
TMI 160-50 | — | 160mm | 50mm | 1500mm | 4.3mm |
Rail Cable Accessories, Electrification & Installation Equipment
Thorne & Derrick stock and distribute an extensive range of 400V-33kV Rail Cable Accessories & Power Distribution Sytems including feeder pillars to contractors undertaking Low Voltage Power Distribution, HV Electrification & Substations, DC Traction & Networks, OLE and Track Feeder Cable Renewals – complete range of Network Rail PADS approved track terminations, cable joints, cable repair and connection products up to 25kV, including 3M Cold Shrink, Pfisterer CONNEX and Nexans Euromold products.
Full range of Cable Pulling Equipment & Products to ensure safe and efficient of rail cables in to cable ducts and containment infrastructure including cable troughs.

Cable Cleats | Cable Hangers | Cable Joints | Cable Glands | Cable Lugs | Cable Transits | Arc Flash Clothing