General Machine Products 89066 1 1/4" SDR Cable Overblowing Junction Box - Manual (Page 5)

Page 5 of 16 General Machine Products Co., Inc.
2. GENERAL DESCRIPTION
The GMP Cable Overblowing Junction Box has been designed to
install a new cable or duct-tubes into an existing occupied inner-
duct (subject to space being available).
The Cable Overblowing Junction Box comprises a heavy duty alu-
minium base and lid that form a pressurized air chamber into
which one end of an existing occupied innerduct can be attached.
The existing cable can exit the Cable Overblowing Junction 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 new cable
or tube(s).
EXISTING
CABLE
LID
INNERDUCT CLAMP
COLLET FOR EXISTING
INNERDUCT (OUTGOING)
CABLE
SEAL
OVERBLOWING
JUNCTION BOX
BASE
INNERDUCT CLAMP COLLET
(INCOMING CABLE/
MICRODUCT CONNECTED
TO CABLE BLOWING MACHINE)