ESFR PENDENT
SPRINKLER VK506 (K22.4)
TECHNICAL DATA
Form No. F_081612 18.10.11 Rev 18.2
Page 2 of 5
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Ordering Information:
(Also refer to the current Viking price list.)
Order ESFR Pendent Sprinkler VK506 by first adding the appropriate suffix for the sprinkler finish and then the appropriate suffix
for the temperature rating to sprinkler base part number.
Finish Suffix: Brass = A
Temperature Suffix: 165 °F (74 °C) = C, 205 °F (96 °C) = E
For example, Sprinkler VK506 with 1” NPT threads, Brass finish, and 165 °F (74 °C) temperature rating = Part No. 18493AC.
Accessories:
Sprinkler Wrench:
Part No. 13635W/B (double-ended wrench - Use Side B. Side A is for use with K14.0 ESFR Pendent Sprinkler VK500) Available
since 2006.
Sprinkler Cabinet:
Six-head capacity: Part No. 01731A (available since 1971)
AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES
Sprinkler Temperature
Classification
Sprinkler Nominal
Temperature Rating
1
Maximum Ambient
Ceiling Temperature
2
Frame Paint
Color
Ordinary
165 °F (74 °C)
100 °F (38 °C)
None
Intermediate
205 °F (96 °C)
150 °F (65 °C)
White
Sprinkler Finish:
Brass
Footnotes
1
The sprinkler temperature rating is stamped on the deflector.
2
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having
Jurisdiction. Refer to specific installation standards.
4. INSTALLATION
WARNING
Viking sprinklers are manufactured and tested to meet rigid requirements of the approving agencies. The sprinklers
are designed to be installed in accordance with recognized installation standards or FM Global Loss Prevention Data
Sheets. System design must be based on ESFR design guidelines described in the latest edition of the applicable FM
Global Loss Prevention Data Sheets, the latest NFPA Standards, the Authorities Having Jurisdiction, and also with
the provisions of governmental codes, ordinances, and standards whenever applicable. Deviation from the standards
or any alteration to the sprinkler after it leaves the factory including, but not limited to: painting, plating, coating, or
modification, may render the sprinkler inoperative and will automatically nullify the approval and any guarantee made
by The Viking Corporation.
A. Sprinklers must be handled with care. They must be stored in a cool, dry place in their original shipping container. Never
install sprinklers that have been dropped or damaged in any way. Such sprinklers should be destroyed immediately.
NOTE: Wet pipe systems must be provided with adequate heat.
B. The sprinklers must be installed after the piping is in place to prevent mechanical damage. Before installing, be sure to have the
appropriate sprinkler model and style, with the correct orifice size, temperature rating, and response characteristics.
C. 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.
D.
Use ONLY sprinkler wrench 10285W/B or 13635W/B (shown in Figure 1) for installing ESFR Sprinkler VK506! With the
sprinkler contained in the protective cap, install the sprinkler onto the piping by applying the sprinkler wrench 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 exceed 50 ft. lbs. of torque (hand tight, plus approximately two full turns with the wrench) to install these sprinklers.
Higher levels of torque may distort the sprinkler inlet with consequent leakage or impairment of the sprinkler.
E. After installation, the entire sprinkler system must be tested. The test must be conducted to comply with the Installation Standards.
Make sure the sprinkler has been properly tightened. If a thread leak occurs, normally the unit must be removed, 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. Immediately replace any damaged units, using the special sprinkler wrench only.
F. After installation and testing and repairing of all leaks, remove the protective caps from the sprinklers. Do NOT use
any type of tool to remove the cap. Remove the cap by hand: turn it slightly and pull it off the sprinkler. When remov-
ing caps, use care to prevent dislodging or damaging sprinkler fusible element. THE CAPS MUST BE REMOVED FROM
SPRINKLERS BEFORE PLACING THE SYSTEM IN SERVICE!
