Bar Lock Transition Couplers are used to mechanically couple two
different diameter rebar together. Commonly used in structures to join
the larger rebar used in foundations to smaller diameter rebar used
above grade.
Transition couplers are available in S/CA Series, L-Series and XL-Series
and are available as plain or epoxy coated. Made from USA melted and
rolled steel.
S/CA Series ACI 318-17 (or earlier) Type 1 Grade 60 ACI 318-19 Type 2 Grade 60
L-Series ACI 318 Type 2 Grade 60 ACI 318 Type 1 Grade 75
XL-Series ACI 318 Type 2 Grade 75/80
INSTALLATION
1. Insert the end of the first rebar into the coupler (for thatsize rebar) until it contacts the weldment disc.
2. Holding the first rebar in place, tighten all bolts on that halfuntil they are hand tight against the rebar.
3. Insert the end of the second rebar into the coupler (for thatsize rebar) until it contacts the weldment. disc.
4. Holding the second rebar in place, tighten all bolts on thathalf until they are hand tight against the rebar.
5. In a random, alternating pattern, tighten all bolts toapproximately 50% of the specified bolt torque value.
6. In a random, alternating pattern, tighten all bolts toapproximately 75% of the specified bolt torque value
INSTALLATION
1. Insert the end of the first rebar into the coupler (for
that size rebar) until it contacts the weldment disc.
2. Holding the first rebar in place, tighten all bolts on
that half until they are hand tight against the rebar.
3. Insert the end of the second rebar into the coupler
(for that size rebar) until it contacts the weldment.
disc.
4. Holding the second rebar in place, tighten all bolts on
that half until they are hand tight against the rebar.
5. In a random, alternating pattern, tighten all bolts to
approximately 50% of the specified bolt torque value.
6. In a random, alternating pattern, tighten all bolts to
approximately 75% of the specified bolt torque value.
7. In a random, alternating pattern, tighten all bolts
until all the heads of the bolts shear off.
Note:
A. Prior to tightening, the serrated rails MUST
remain aligned in the same position as they were
manufactured. If they are damaged or knocked out
of alignment while positioning, installation MUST
cease and a new coupler used.
B. Bolt tightening MUST be done in a random
alternating pattern similar to tightening the lug nuts
on an automobile wheel.
C. A high-quality, 1? -pneumatic drive, impact
wrench with at least 100 psig air flow and 185
CFM of delivered air through a no less than 0.75?
hose MUST be used for installation.