Cable Overblowing Junction Box
Available in three sizes, the GMP Cable Overblowing Junction Boxes have been designed to install a new cable or innerduct into an existing occupied 1-1/4 in., 1-1/2 in. and 2 in. innerduct (subject to space being available).
The Single Size Junction Box comprises an aluminium base and lid that form a pressurized air chamber into which one end of an existing occupied innderduct can be attached. The existing cable can exit the box through an opening that has 3 cable seal slots, one of which will house the seal to suit the size of the existing cable. The third branch is then connected to a GMP Cable Blowing Machine via a short slave length of innerduct for the installation of the extra cable or tube(s). A collection of seals ranging from 7.5 – 20 mm included with junction box.
How To Configure Your Junction Box
| Cable Diameters: 7.5 - 20 mm The maximum diameter of a new cable for installation is dependent on the diameter of the existing cable and the duct size. |
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| Part Number: | P/N 89066 | P/N 89067 | P/N 89068 |
| Duct Range Limit: | 1-1/4 in. SDR | 1-1/2 in. SDR | 2 in. SDR |
| Installation Principle: | Viscous Drag | Viscous Drag | Viscous Drag |
| Max Operating Pressure: | 175 psi (12 Bar) | 175 psi (12 Bar) | 175 psi (12 Bar) |
| Length: | 12" (305 mm) | 12" (305 mm) | 12" (305 mm) |
| Width: | 6" (152 mm) | 6" (152 mm) | 11.5" (292 mm) |
| Height: | 3" (76 mm) | 3" (76 mm) | 3.3" (84 mm) |
| Weight: | 9 lbs. (4kg) | 9 lbs. (4kg) | 14.5 lbs. (6.6kg) |
| Min Flow Acceptance: | 250 cfm (7m³/min) | 375 cfm (10m³/min) | 700 cfm (20 m3/min) |