Manual
Table Of Contents
GROUND MOUNT INSTALLATION MANUAL - 11© 2021 IRONRIDGE, INC. VERSION 2.9
SPLICING CROSS PIPE
The following instructions should be followed, when
required, to join more than one section of horizontal beam
together to ensure bonding is maintained throughout the
system.
A. MECHANICAL TUBING SPLICES
Mechanical tube splices shown in the table below shall be
of equivalent Allied Flo-Coat, Allied Gatorshield or Wheat-
land ThunderCoat coating.
-
cure with 2 self-drilling screws (1/4”-14 x ¾”), spacing them
approximately 1.25” from end of pipe and approximately
3.50” apart, tightening screws to 9 ft-lbs.
Slide second section of cross tube over splice tube and
secure with two more self-drilling screws. Tighten screws
to 9 ft-lbs.
➢ Pre-drill 5/32” pilot holes through cross tube and splice tube for
easier installation of self-drilling screws.
B. SCHEDULE 40 GRADE B PIPE SPLICES
Use galvanized threaded pipe couplings that match the
pipe size used for the structure. Threaded Schedule 40
Grade B Pipe must be used when splicing cross pipe
together.
Fully thread coupling onto both sections of pipe being
spliced together.
➢ To ensure structural integrity of horizontal beams, mechanical
tube or pipe coupling splices are not permitted in end spans or in
middle 1/3 of interior horizontal beam spans.
C. HORIZONTAL PIPES CAN BE JOINED OVER AN
INTERIOR TOP CAP WITH A MAXIMUM GAP OF 1/2”
➢ To avoid potential problems from the eects of thermal
expansion, a maximum total continuous cross pipe length
of 100 ft is recommended.
Mechanical Tube Size
of the Structure
Splice Tube Size
2.375” OD, 12 Gauge
2.000” OD, 9 Gauge,
Minimum 12” Long
3.500” OD, 8 Gauge
3.000” OD, 12 Gauge,
Minimum 12” Long
A
B
C
Horizontal
Beam
Horizontal Beam
Horizontal
Beam
Cross Beam
Horizontal
Beam
Horizontal
Beam