Victaulic VicFlex AB12, Field Installation Handbook

Page: 124 / 204

I-VICFLEX_124
STYLE VS1 DRY SPRINKLER INSTALLATION
FOR FIRE PROTECTION SERVICE REV_A
STYLE VB2, STYLE VB3, AND VB4 BRACKETS-
INSTALLATION FOR ASTM C635 CEILING
SUSPENSION SYSTEMS INSTALLED WITH LAY-
IN TILES (IN ACCORDANCE WITH ASTM C636
STANDARDS)
WARNING
• DO NOT attempt to adjust or remove a Style VS1 Dry Sprinkler while the
sprinkler system is pressurized.
Failure to follow this instruction could result in death or serious personal injury and
property damage.
Engage Wrench
Only On Swivel
Hex Nut
1. Apply a non-hardening pipe-joint
compound or two to three wraps of
PTFE thread sealant tape to the male
threads of the Style VS1 Dry Sprinkler’s
inlet, in accordance with the pipe joint
compound or tape manufacturer’s
instructions.
1a.
Using a 2-inch wrench, tighten
the swivel hex nut at the Style VS1 Dry
Sprinkler’s inlet to a torque of 30 ft-lbs/
41 N•m (approximately 1/2 to 3/4 of a
turn past hand-tight).
NOTE : For adjustment purposes, the
wing screw on top of each end bracket
assembly can be loosened to allow the
end bracket to slide on the square bar.
Tighten the wing screw on top of each
end bracket assembly to a torque of
36 inch-lbs/4 N•m (approximately 1/2 to
3/4 of a turn past hand-tight) to secure
the end bracket to the square bar.
VB2/VB3 Bracket (shown above) VB4 Bracket (shown above)
2. Attach the end brackets of the Style VB2/VB3 or VB4 Bracket to the T-bar rails of an
ASTM C635 ceiling suspension system installed in accordance with ASTM C636 stan-
dards. Verify that the ends of the Style VB2/VB3 or VB4 Bracket engage the rails.