
Thread Size: 3/4" (20 mm) NPT
Deflector Diameter: 1-3/4" (44,45 mm)
Overall Length: 2-7/8" (73 mm)
SPRINKLER MATERIALS
Frame: Brass Casting UNS-C84400
Seat: Stainless Steel UNS-S31603
Belleville Spring Sealing Assembly:
Nickel Alloy, coated on both sides
with Teflon Tape
Screw: Stainless Steel UNS-S31603
Deflector: Bronze UNS-C51000
Trigger and Support: Stainless Steel
UNS-S31600
Fusible Element Assembly: Beryllium
Nickel, coated with black acrylic
paint.
Ejector Spring (Sprinkler Base Part No.
11350 only): 17-7 Stainless Steel
AVAILABLE FINISH: Brass
ACCESSORIES
Sprinkler Wrench: Part No. 10285W/B
Size: Fits 3/4" NPT ESFR Pendent
Sprinklers
Available since 2000.
Sprinkler Cabinet: Part No. 01725A
Capacity: twelve (12) sprinklers
Length: 10-3/16" (259 mm)
Height: 8-9/16" (217 mm)
Depth: 2-9/16" (65 mm)
5. AVAILABILITY & SERVICE
Viking products are available through a
network of domestic, Canadian, and
international distributors. See the Viking
Corp. Web site for your closest distribu-
tor or contact The Viking Corporation.
Viking technical data may be found on
The Viking Corporation’s Web site at
http://www.vikingcorp.com.
The Web site may include a more recent
edition of this technical data page.
6. GUARANTEES
For details of warranty, refer to Viking’s
currentlistpricescheduleorcontactThe
Viking Corporation directly.
7. DESIGN & INSTALLATION
WARNING: Viking sprinklersare manu-
factured and tested to meet rigid re-
quirements of the approving agency.
The sprinklers are designed to be in-
stalled in accordance with recognized
installation standards. Deviation from
the standards or any alteration to the
sprinkler after it leaves the factory in-
cluding, but not limited to: painting, plat-
ing,coating,ormodification, mayrender
the sprinkler inoperative and will auto-
matically nullify the approval and any
guaranteemadebyTheVikingCorpora-
tion.
A. Viking ESFR Pendent SIN VK500
Sprinklersaretobeinstalledinaccor
-
dance with applicable FM Global
LossPreventionData Sheets,the lat-
est standards of Verband der
Sachversicherer, LPCB, and the Na
-
tionalFireProtectionAssociation, the
Authorities Having Jurisdiction, and
also with the provisions of govern-
mental codes, ordinances, and stan
-
dards whenever applicable.
B.Sprinklersmustbehandledwithcare.
They must be stored in a cool, dry
place in their original shipping con
-
tainer. Never install sprinklers that
have been dropped or damaged in
any way. (Such sprinklers should be
destroyed immediately.) Wet-pipe
systems must be provided with ade-
quate heat.
C. The sprinklers must be installed after
the piping is in place to prevent me
-
chanical damage. Before installing,
besureto havetheappropriate sprin-
kler model and style, with the correct
orifice size, temperature rating, and
response characteristics.
D. With the sprinkler contained in the
plastic protective cap, apply a small
amount of pipe-joint compound or
tape to the male threads only, while
taking care not to allow a build-up of
compound in the sprinkler orifice.
E. With the sprinkler contained in the
plastic protective cap, install the
sprinkler onto the piping by apply-
ing the special sprinkler wrench
(showninFigure 1) to the sprinkler
wrench flats only, while taking
care not to damage the sprinkler
operating parts. DO NOT use any
other type of wrench, as this could
damage the unit. DO NOT use the
sprinkler deflector or fusible
element to start or thread the
sprinkler into a fitting. DO NOT ex
-
ceed 50 ft. lbs. of torque (hand
tight, plus approximately two full
turns with the wrench) to install
these sprinklers. Higher levels of
torquemay distort the sprinkler in-
let with consequent leakage or im-
pairment of the sprinkler.
F. Use only the special sprinkler wrench
and immediately replace any dam-
aged units.
G. After installation, the entire sprinkler
systemmustbetested.Thetestmust
be conducted to comply with the In-
stallation Standards.
Make sure the sprinkler has been
properly tightened. If a thread leak
occurs, normally the unit must be re-
moved, new pipe-joint compound or
tape applied, and then reinstalled.
This is due to the fact that when the
joint seal is damaged, the sealing
compound or tape is washed out of
the joint.
H. After installation and testing and
repairing of all leaks, remove the
plastic protective cap from the
sprinkler. THE CAP MUST BE RE-
MOVED FROM THE SPRINKLER
BEFORE PLACING THE SYSTEM
IN SERVICE.
I. System design must be based on
ESFR design guidelinesdescribed in
applicable FM Global Loss Preven-
tionDataSheets,thelateststandards
of Verband der Sachver- sicherer,
LPCB, the National Fire Protection
Association,and theAuthorities Hav-
ing Jurisdiction. All requirements of
recognized sprinkler system design
standards apply to systems utilizing
Viking ESFR Pendent Sprinklers.
NOTE:Vikingrecommendsinstall
-
ing one style of sprinklers (either
pendent or upright) throughout
ESFRsystems.However,provided
the fusible elements are installed
within the distance below the ceil-
ing allowed by the installation
standards, and when acceptable
to the AHJ, Viking considers the
practice of mixing upright and
pendent ESFR sprinklers to be ac-
ceptable.
8. MAINTENANCE
NOTICE: The owner is responsible for
maintaining the fire protection system and
devices in proper operating condition. For
minimum maintenance and inspection re-
quirements, refer to the NFPA standard
that describes care and maintenance of
sprinkler systems. In addition, the Author-
ities Having Jurisdiction may have addi-
tionalmaintenance,testing,andinspection
requirements that must be followed.
A.Thesprinklersmustbeinspectedona
regular basis for corrosion, mechani
-
cal damage, obstructions, paint, etc.
The frequency of inspections may
vary due to corrosive atmosphere,
water supplies, and activity around
the device.
B. Sprinklers that have been painted or
mechanically damaged must be re-
placedimmediately.Sprinklersshow
-
ing signs of corrosion shall be tested
and/or replaced immediately as re-
quired. Installation standards require
Sprinkler120c
TECHNICAL DATA ESFR PENDENT SPRINKLERS
SIN VK500 (K = 14.0)
December 10, 2004