Aluminium Compression Joint Tube — GLB Series
GLB aluminium butt-splice tube for permanent in-line joining of aluminium conductors.
Smooth inner bore and chamfered ends for easy conductor insertion and full-length compression.
Sizes cover 16–240 mm² with consistent dimensional control (D / d / L).
Ideal for overhead lines, substation jumpers and distribution connections.
Overview — GLB Aluminium Compression Joint Tube
The GLB series is a straight aluminium compression joint tube
(butt splice) used to permanently join two aluminium conductors in line.
The tube provides a smooth inner bore and bevelled entry to ease insertion and
achieve a full-length, high-strength crimp with low electrical resistance.
Material: Aluminium tube (for Al–Al joints) |
Process: Compressed with hex or indent dies to the specified schedule |
Dimensions: D (OD), d (ID), L (length) per size
Sizes & Dimensions
| Type | D (mm) | d (mm) | L (mm) |
|---|---|---|---|
| GLB-16 | 10 | 6.8 | 91 |
| GLB-25 | 12 | 6.8 | 91 |
| GLB-35 | 14 | 9 | 91 |
| GLB-50 | 16 | 11 | 105 |
| GLB-70 | 18 | 12 | 105 |
| GLB-95 | 21 | 14 | 107 |
| GLB-120 | 23 | 15 | 132 |
| GLB-150 | 25 | 17 | 132 |
| GLB-185 | 27 | 19 | 143 |
| GLB-240 | 30.2 | 21.3 | 143 |
Installation Notes
- Use the correct die set and crimp sequence for each conductor size.
- Clean conductor strands and apply oxide-inhibiting compound before insertion.
- Make full-length compressions; mark and verify with go/no-go gauge when applicable.
- For Cu–Al transitions, use a designated bimetal joint instead of GLB.
