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BRACKETING SYSTEM
525 SERIES
525-ABCD
e.g. 525-1623: 16" stud bay StrongArm bracket with two ¾" LockBlocks.
SPECIFICATION
Sioux Chief 525 series StrongArm with LockBlock pre-assembled bracketing
system shall be used where necessary for securing CTS water supply stub outs
when penetrating a wall. Bracket shall be corrosion resistant with twisted ends
to mount to the surface either a wood or metal stud wall. System shall include
approved hardware for fastening brackets to stud wall. System shall include
slideable, plastic block device to position and secure CTS stub out at any desired
location. Each block shall include two screws for tightening. When screws on
blocks are tightened, compression of blocks prevents lateral movement on
brackets and simultaneously compresses on tube to prevent stub out movement.
LockBlocks shall be compatible with copper, CPVC, or PEX tube. Optional flame-
rated blocks comply to UL94-VO standards.
MATERIALS
Brackets: 16 gauge galvanized steel
Standard (black) blocks: ABS
Flame-rated (red) blocks: hard PVC (meets UL94-VO requirements)
Screw: #6 × 1" coarse thread, zinc-plated
SAFE WORKING LOAD*
25 lbs. at 140°F
*safe working load = ½ failure
INSTALLATION
Determine stub out height. Secure top bracket to stud. Slide blocks across bracket
to desired stub out location. Install stub out or stub out elbow in block. Tighten
each screw on each block to secure stub out and prevent lateral movement on
brackets. Bend ends of bottom bracket down as close as possible to block. Secure
each end to stud. Optional installations include keeping brackets parallel, or
bending brackets on only one side in opposite directions from each other.
DIMENSIONS
LockBlock for ½" CTS for ¾" CTS for 1" CTS
A: diameter " " 1 "
B: width " " 2¼"
C: height 1¾" 1¾" 1¾"
StrongArm 16" stud bay 24" stud bay
D: depth " "
E: offset ½" ½"
F: mounting tab 1½" 1½"
G: overall length 17¼" 25¼"
525-1612
5
8
5
8
5
8
7
8
7
8
7
8
1
8
StrongArm
™
with LockBlock
™
16 = 16" stud bay
24 = 24" stud bay
_ = none
R = UL-94 VO ame rated
1 = one block
2 = two blocks
525-16T = twisted StrongArm bracket for 16" bay
525-24T = twisted StrongArm bracket for 24" bay
525-B2 = LockBlock for ½" supply
525-B3 = LockBlock for ¾" supply
525-B4 = LockBlock for 1" supply
2 = for ½" supply
3 = for ¾" supply
4 = for 1" supply
LENGTH A FLAME-RATED BLOCKS D
NUMBER OF BLOCKS B INDIVIDUAL COMPONENTS
525-B2R = ame-rated LockBlock for ½" supply
525-B3R = ame-rated LockBlock for ¾" supply
525-B4R = ame-rated LockBlock for 1" supply
INDIVIDUAL COMPONENTS (CONT.)
SIZE OF BLOCKS C
B
A AC
F
G
D
E
Sioux Chief Manufacturing Company | P: 1.800.821.3944 | F: 1.800.758.5950 | www.siouxchief.com
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