Victaulic VicFlex VS1 User manual

I-VICFLEX.VS1INSTALLATION INSTRUCTIONS
Victaulic®VicFlex™Style VS1 Dry Sprinkler
I-VICFLEX.VS1_1
REV_C
WARNING
• Read and understand all instructions before attempting to install
any Victaulic®VicFlex™Style VS1 Dry Sprinklers.
• Wear safety glasses, hardhat, and foot protection.
• These installation instructions are intended for an experienced,
trained installer.
• The installer must understand the use of this product and why it
was specified for the particular application.
• The installer must understand common industry safety standards
and potential consequences of improper product installation.
Failure to follow these instructions could cause improper sprinkler
operation, resulting in death or serious personal injury and property
damage.
TECHNICAL DATA
WARNING
• It is the system designer’s responsibility to verify suitability of
stainless steel components for use with the intended fluid media
within the piping system and external environment.
• The material specifier must evaluate the effect of chemical
composition, pH level, operating temperature, chloride level, and
oxygen level on stainless steel components to confirm system
life will be acceptable for the intended service.
Failure to follow these instructions could cause product failure,
resulting in serious personal injury and/or property damage.
Maximum Working Pressure Rating:
175 psi/12 Bar/1207 kPa (UL Listing)
Connection to Branch Line (Inlet):
1 inch/25 mm NPT or BSPT
Minimum Bend Radius:
2 inch/50 mm (UL Listing)
K-Factor of Sprinkler:
5.6 US/80 metric
Maximum Number of 90° Bends:
4 Bends (UL Listing)
BEND CHARACTERISTICS
NOTE: For out-of-plane (three-dimensional) bends, care must be taken
to avoid imparting torque on the assembly.
90°
OR
OR
Minimum
Bend Radius
Minimum
Bend Radius Minimum
Bend Radius
Minimum
Bend Radius
Minimum
Bend Radius
Minimum
Bend Radius
Minimum
Bend Radius
2X
Minimum
Bend
Radius
2X
Minimum
Bend
Radius
SIDEWALL
Heated
Space
Unheated
Space
Exterior
Y
Face of
Fitting
PENDENT
Heated
Space
Unheated
Space
Exterior
Face of
Fitting
Y
The following table is used when the ambient temperature is maintained
between 40° F/4°C and 60°F/16°C around the wet piping system.
Ambient Temperature
Exposed to Discharge
End of Sprinkler
°F/°C
Exposed Minimum Barrel Length “Y”
inches/mm
40°F/4°C 50°F/10°C 60°F/16°C
40 0 0 0
4 0 0 0
30 0 0 0
-1 0 0 0
20 4 0 0
-7 100 0 0
10 8 1 0
-12 200 25 0
012 3 0
-18 300 75 0
-10 14 4 1
-23 350 100 25
-20 14 6 3
-29 350 150 75
-30 16 8 4
-34 400 200 100
-40 18 8 4
-40 450 200 100
-50 20 10 6
-46 500 250 150
-60 20 10 6
-51 500 250 150
NOTE: Exposed minimum barrel lengths are inclusive up to 30-mph/48-kph wind velocities

I-VICFLEX.VS1_2 REV_C
I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler/ Installation Instructions
IMPORTANT INSTALLATION INFORMATION
• Victaulic®VicFlex™Style VS1 Dry Sprinklers must be installed
according to current, applicable National Fire Protection
Association (NFPA 13, 13D, 13R, etc.) standards or equivalent
standards. Victaulic®VicFlex™Style VS1 Dry Sprinklers are
intended to be installed in wet, dry, or preaction actuated systems.
Deviations from these standards or alterations to Victaulic®
VicFlex™Style VS1 Dry Sprinklers will void any Victaulic warranty.
In addition, installations must meet provisions of the local authority
having jurisdiction and local codes, as applicable.
• Transport and store Victaulic®VicFlex™Style VS1 Dry Sprinklers in
a cool, dry environment in their original packaging.
• Refer to the specific product submittal for applications and
listing information. These submittals are located in Sections
10 and 40 of the Victaulic G-100 Catalog or on the Victaulic
website at victaulic.com.
• Size the piping system to provide the minimum operating pressure
of 7 psi/0.5 Bar/48 kPa.
• Per NFPA requirements, flush the system to remove foreign
material. Continue to flush the system until water runs clear.
• DO NOT install sprinkler system piping through heating ducts.
• DO NOT connect sprinkler system piping to domestic hot water
systems.
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers where
they will be exposed to temperatures that exceed the maximum
ambient temperature rating for the product.
• Victaulic®VicFlex™Style VS1 Dry Sprinklers have limited
flexibility and are intended only to be installed with bends not
less than their respective minimum bend radii.
• Protect wet piping systems from freezing temperatures.
• If construction is altered, refer to applicable standards to determine
if additional Victaulic®VicFlex™Style VS1 Dry Sprinklers are
required.
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers that
have been dropped or struck by another object, even if they do
not appear damaged. Never install glass bulb sprinklers if the bulb
is cracked or if there is a loss of liquid from the bulb. Discard and
replace any Victaulic®VicFlex™Style VS1 Dry Sprinklers that are
damaged or show signs of corrosion.
• Before installation, verify that the Victaulic®VicFlex™Style VS1 Dry
Sprinkler is the proper style, orifice size, and temperature rating for
the intended service.
• VICTAULIC®VICFLEX™STYLE VB2 BRACKET ASSEMBLIES
SHALL BE USED ONLY WITH STYLE VS1 RECESSED PENDENT
SPRINKLERS.
• VICTAULIC®VICFLEX™STYLE VB3 BRACKET ASSEMBLIES
SHALL BE USED ONLY WITH STYLE VS1 CONCEALED
PENDENT SPRINKLERS.
• DO NOT paint, coat, plate, or alter Victaulic®VicFlex™Style
VS1 Dry Sprinklers. Victaulic®VicFlex™Style VS1 Dry Sprinklers
that have been altered from their manufactured condition may
not function properly and will void any agency listings and/or
approvals.
• DO NOT test Victaulic®VicFlex™Style VS1 Dry Sprinklers with a
heat source. The glass bulb can weaken or shatter if exposed to a
heat source during testing.
• Victaulic®VicFlex™Style VS1 Dry Sprinklers that have operated
cannot be reassembled or reused, per NFPA requirements. When
replacing sprinklers, use new sprinklers of the same type, orifice,
temperature, and response.
• DO NOT clean Victaulic®VicFlex™Style VS1 Dry Sprinklers
with soapy water, detergents, ammonia, cleaning fluids, or other
chemicals. Remove any dust, lint, etc. with a soft, dry cloth.
• Inspect Victaulic®VicFlex™Style VS1 Dry Sprinklers on a regular
basis for corrosion, mechanical damage, obstructions, etc. The
frequency of inspections may vary due to corrosive atmospheres/
water supplies and activities around the sprinklers.
• DO NOT hang anything from or attach anything to Victaulic®
VicFlex™Style VS1 Dry Sprinklers. Obstructing the discharge
pattern will prevent the sprinkler from operating properly.
• The owner is responsible for maintaining the fire protection system
in proper operating condition.
• For minimum maintenance and inspection requirements, refer to
NFPA 25 and any other applicable NFPA standards that describe
the care and maintenance of sprinkler systems. In addition, the
authority having jurisdiction may have additional maintenance,
testing, and inspection requirements that must be followed.
WARNING
• Replacement/relocation of this Victaulic®VicFlex™Style VS1
Dry Sprinkler MUST be performed by qualified personnel
familiar with the system’s original design criteria, sprinkler
listings/approvals, and state and local codes (including NFPA 13
standards).
Failure to replace/relocate Victaulic®VicFlex™Style VS1 Dry
Sprinklers properly could affect their performance during a fire,
resulting in serious personal injury and property damage.
STYLE VS1 SPRINKLER ASSEMBLY DRAWING
3
2
1
Recessed Pendent Shown Above
Item Description
1Swivel Hex Nut
2Weld Fitting
3Inlet

I-VICFLEX.VS1_3
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I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler / Installation Instructions
STYLE VB1 BRACKET ASSEMBLY DRAWING
2
1
3
STYLE VB2 BRACKET ASSEMBLY DRAWING
2
3
1
4
5
3
5
STYLE VB3 BRACKET ASSEMBLY DRAWING
2
3
1
4
5
3
5
Item Description
1Style VB1 Bracket
2Hex Cap Screw
3Relocation Warning Label
Item Description
124-inch/610-mm or 48-inch/1219-mm Square Bar*
2Center Gate Assembly with Wing Nut
3Style VB2 End Bracket with Tapping Screw
4Relocation Warning Label
5Wing Screw
* Reference submittal document VS-10.91 for listing
information. Square bar length is in reference to nominal
ceiling grid spacing.
NOTICE
• VICTAULIC®VICFLEX™STYLE VB2 BRACKET
ASSEMBLIES SHALL BE USED ONLY WITH
STYLE VS1 RECESSED PENDENT SPRINKLERS.
Item Description
124-inch/610-mm or 48-inch/1219-mm Square Bar*
2Center Gate Assembly with Wing Nut
3Style VB3 End Bracket with Tapping Screw
4Relocation Warning Label
5Wing Screw
* Reference submittal document VS-10.91 for listing
information. Square bar length is in reference to nominal
ceiling grid spacing.
NOTICE
• VICTAULIC®VICFLEX™STYLE VB3 BRACKET
ASSEMBLIES SHALL BE USED ONLY WITH
STYLE VS1 CONCEALED PENDENT SPRINKLERS.

I-VICFLEX.VS1_4 REV_C
I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler / Installation Instructions
STYLE VS1 SPRINKLER ASSEMBLY PITCHING REQUIREMENTS
SIDEWALL
Continuous Downward Slope
ACCEPTABLE PITCH
Inlet
Outlet
Heated Space
Unheated Space
Inlet
Outlet
Low Point
UNACCEPTABLE PITCH
Unheated Space
Heated Space
FOR DRY SYSTEMS ONLY:
• The Style VS1 Dry Sprinkler’s inlet shall be installed only into the outlet of a cast or malleable iron tee that meets the dimensional requirements
of ANSI B16.3 and ANSI B16.4, Class 125 and Class 150. Use a sample fitting to confirm proper engagement.
Style VS1 Dry Sprinklers in dry systems must be installed with a continuous downward slope along its entire length from the branch
line fitting to the sprinkler. No localized low points shall be present along the length of the Style VS1 Dry Sprinkler.
Style VS1 Dry Sprinklers are not permitted to be installed into the top of the branch line piping. Style VS1 Dry Sprinklers must be
installed into the side or from the bottom of the branch line piping.
FOR WET SYSTEMS ONLY:
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers into couplings or threaded elbows.
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers into any fitting that interferes with thread penetration. The inlet of the Victaulic®
VicFlex™Style VS1 Dry Sprinkler MUST NOT bottom out in the fitting. Use a sample fitting to confirm proper engagement.
• To ensure unobstructed flow during operation, the Victaulic®VicFlex™Style VS1 Dry Sprinkler must be installed into a fitting that will prevent
water and debris from accumulating at the dry sprinkler’s inlet.
In a wet system, if a portion of the Style VS1 Dry Sprinkler extends into an unconditioned space, it must be installed with a
continuous downward slope along the entire exposed length from the inside wall to the sprinkler. No localized low points shall be
present along the exposed length of the sprinkler.

I-VICFLEX.VS1_5
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I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler / Installation Instructions
STYLE VS1 SPRINKLER ASSEMBLY PITCHING REQUIREMENTS (CONTINUED)
PENDENT
Continuous Downward Slope
ACCEPTABLE PITCH
Inlet
Outlet
Heated Space Unheated Space
Outlet
Low Point
UNACCEPTABLE PITCH
Unheated Space
Inlet
Heated Space
FOR DRY SYSTEMS ONLY:
• The Style VS1 Dry Sprinkler’s inlet shall be installed only into the outlet of a cast or malleable iron tee that meets the dimensional requirements
of ANSI B16.3 and ANSI B16.4, Class 125 and Class 150. Use a sample fitting to confirm proper engagement.
Style VS1 Dry Sprinklers in dry systems must be installed with a continuous downward slope along its entire length from the branch
line fitting to the sprinkler. No localized low points shall be present along the length of the Style VS1 Dry Sprinkler.
Style VS1 Dry Sprinklers are not permitted to be installed into the top of the branch line piping. Style VS1 Dry Sprinklers must be
installed into the side or from the bottom of the branch line piping.
FOR WET SYSTEMS ONLY:
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers into couplings or threaded elbows.
• DO NOT install Victaulic®VicFlex™Style VS1 Dry Sprinklers into any fitting that interferes with thread penetration. The inlet of the Victaulic®
VicFlex™Style VS1 Dry Sprinkler MUST NOT bottom out in the fitting. Use a sample fitting to confirm proper engagement.
• To ensure unobstructed flow during operation, the Victaulic®VicFlex™Style VS1 Dry Sprinkler must be installed into a fitting that will prevent
water and debris from accumulating at the dry sprinkler’s inlet.
In a wet system, if a portion of the Style VS1 Dry Sprinkler extends into an unconditioned space, it must be installed with a
continuous downward slope along the entire exposed length from the inside wall to the sprinkler. No localized low points shall be
present along the exposed length of the sprinkler.

I-VICFLEX.VS1_6 REV_C
I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler / Installation Instructions
STYLE VB1 BRACKET INSTALLATION FOR
WOOD OR METAL JOISTS/STUDS
WARNING
• DO NOT attempt to adjust or remove a Victaulic®VicFlex™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.
1. Cut a hole in the finished ceiling or wall. Refer to the table below
for hole sizes.
Minimum and Maximum Hole Sizes
Sprinkler Style
Hole Sizes – inches/millimeters
Minimum Maximum
VS1 Recessed 22 ⁄
51 60
VS1 Concealed 2 ⁄ 2 ¾
67 70
VS1 Sleeve/Skirt 1 ¾ 2 ½
44 64
Engage Wrench
Only On Swivel
Hex Nut
2. 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.
2a. 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 ½ to ¾ of a
turn past hand-tight).
Remove Hex Cap
Screw for Installation
3. Using a ⁄-inch hex socket,
remove the hex cap screw
from the bracket.
4. Snap the bracket onto the
weld fitting, as shown to the
left. Make sure the slot of the
bracket aligns with the lip on
the weld fitting.
• An alternative to step 4 is
to snap the bracket onto the
outlet tube, as shown.
5. Place the bracket assembly
in the desired position on
the wood or metal joist/
stud. Make sure the sprinkler
orientation is in the proper
position.
5a. Using a ⁄-inch hex socket,
re-install the hex cap screw.
Tighten the hex cap screw
to 15 inch-lbs/1.7 N•m
(approximately one to two
turns past hand-tight). This
will retain the sprinkler
orientation in relation to the
bracket mounting flanges.
6. Anchor the bracket in the desired location on the wood or metal
joist/stud by using two #10 x 1 ½-inch long wood screws (for wood
joists/studs shown above) or two #10 x 1 ½-inch long sheet metal
screws (for metal joists/studs). NOTE: Victaulic does not supply
wood screws or sheet metal screws.
NOTICE
• Style VS1 Dry Sprinklers in dry systems must be installed with
a continuous downward slope along its entire length from the
branch line fitting to the sprinkler. No localized low points shall
be present along the length of the Style VS1 Dry Sprinkler.
• Style VS1 Dry Sprinklers in dry systems are not permitted to be
installed into the top of the branch line piping. Style VS1 Dry
Sprinklers must be installed into the side or from the bottom of
the branch line piping.
• Style VS1 Dry Sprinklers in wet systems, installed where a
portion extends into an unconditioned space, must be installed
with a continuous downward slope along the entire exposed
length from the inside wall to the sprinkler. No localized low
points shall be present along the exposed length of the sprinkler.

I-VICFLEX.VS1_7
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I-VICFLEX.VS1 / Victaulic®VicFlex™Style VS1 Dry Sprinkler / Installation Instructions
STYLE VB2 AND STYLE VB3 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 Victaulic®VicFlex™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 ½ to ¾ of a
turn past hand-tight).
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 ½ to ¾ of a
turn past hand-tight) to secure the end bracket to the square bar.
2. Attach the end brackets of the Style VB2 Bracket to the T-bar
rails of an ASTM C635 ceiling suspension system installed in
accordance with ASTM C636 standards. Make sure the ends of
the Style VB2 Bracket engage the rails.
Side Facing the
Opening of the
Center Gate
Assembly
2a. For center-of-tile installations, align the end bracket with the
center-of-tile slot of the T-bar rail (with the side facing the opening
of the center gate assembly), as shown above.
2b. Apply light downward pressure, as shown above, to maintain the
position of the end bracket flat against the T-bar rail. To secure
the end brackets to the T-bar rails, tighten the pre-installed sheet
metal screws using a #2 recessed square drive bit. Penetrate
through the T-bar rail until the end bracket is seated fully against
the T-bar rail. DO NOT over-tighten the screws. Over-tightening
will cause the screw to strip, resulting in an unsecured bracket
connection.
3. Move the center gate assembly of the Style VB2 Bracket to the
desired location. Loosen the wing nut to open the center gate
assembly, then slide the sprinkler reducing nipple into the center
gate assembly. NOTE: The pivot screw of the center gate assembly
is staked to resist removal of the wing nut.

I-VICFLEX.VS1INSTALLATION INSTRUCTIONS
Victaulic®VicFlex™Style VS1 Dry Sprinkler
For complete contact information, visit victaulic.com
I-VICFLEX.VS1 8919 REV C UPDATED 05/2016 Z000VS1000
VICTAULIC AND VICFLEX ARE REGISTERED TRADEMARKS OR TRADEMARKS OF VICTAULIC COMPANY AND/OR ITS AFFILIATED ENTITIES
IN THE UNITED STATES AND/OR OTHER COUNTRIES. © 2016 VICTAULIC COMPANY. ALL RIGHTS RESERVED.
For center-of tile installations, position the center gate assembly
between the two reference marks on the square bar, as shown above.
3a. Close the center gate assembly around the sprinkler reducing
nipple. Swing the pivot screw and washer into the slot on the
gate, and tighten the wing nut to a torque of 50 inch-lbs/6 N•m
(approximately hand-tight, plus ½ to ¾ of a turn). NOTE: Make
sure the washer is seated under the head of the wing nut.