Viking VK503 Instruction manual

ESFR PENDENT SPRINKLER
VK503 (K16.8)
TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
1. DESCRIPTION
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK503 is a fast
response fusible element type sprinkler designed for early fire suppression. With a
16.8 (242 metric*) nominal K-Factor and special deflector, this sprinkler produces
large, high-momentum water droplets in a hemispheric pattern below the deflector.
This permits penetration of the fire plume and direct wetting of the burning fuel surface
while cooling the atmosphere early in the development of a high-challenge fire.
Viking Sprinkler VK503 may be used in the protection of ordinary types of storage.
However, it is primarily intended to protect the following types of storage, which tend
to produce severe-challenge fires: palletized and solid pile storage and single, dou-
ble, multiple row, and portable open rack storage (no open-top containers or solid
shelves).
Viking ESFR Pendent Sprinkler VK503 provides protection of most common storage
materials, including:
--Encapsulated or unencapsulated Class I, II, III, and IV commodities*.
--Cartoned and uncartoned unexpanded plastics*.
--Cartoned expanded plastics*.
Refer the Approval Chart on page 123c and Design Criteria on page 123d for cULus and FM approval requirements that must be followed.
In addition, some storage arrangements of rolled paper, aerosols, and rubber tires may be protected by Viking ESFR Pendent
Sprinkler VK503.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNWH
FM Approved: Class 2027
NYC Approved: MEA 89-92-E, Volume 41
Refer the Approval Chart on page 123c and Design Criteria on page 123d for cULus and FM approval requirements that must be
followed.
3. TECHNICAL DATA
Specifications:
Available since 2007.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically
to 500 psi (34.5 bar).
Thread size: 3/4” NPT or 20 mm BSP
Nominal K-Factor: 16.8 U.S. (242 metric*)
*Metric K-factor measurement shown is when pressure is measured in bar. When pressure
is measured in kPa, divide the metric K-factor shown by 10.0.
Overall Length: 2-7/8” (73 mm)
Deflector Diameter: 1-3/4” (44.5 mm)
Covered by one or more of the following patents: US6,502,643; US6,868,917; AU722593; GB2336777
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Seat and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape
Compression Screw: Stainless Steel UNS-S31603
Trigger and Support: Stainless Steel UNS-S31600
Fusible Element Assembly: Beryllium Nickel, coated with black acrylic paint.
*
Form No. F_120106 Replaces page 123a-f, dated January 4, 2008.
(Updated the materials list, added MEA/NYC Approval.)
Viking Technical Data may be found on
The Viking Corporation’s Web site at
http://www.vikinggroupinc.com.
The Web site may include a more recent
edition of this Technical Data Page.
Sprinkler 123a
OBSOLETE

TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
ESFR PENDENT SPRINKLER
VK503 (K16.8)
Ordering Information: (Also refer to the current Viking price list.)
Order ESFR Pendent K16.8 Sprinkler VK503 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 (°F/°C): 165°/74° = C, 205°/96° = E
For example, sprinkler VK503 with a Brass finish and a 165 °F/74 °C temperature rating = Part No. 14073AC.
Available Finishes And Temperature Ratings:
Refer to Table 1
Accessories: (Also refer to the “Sprinkler Accessories” section of the Viking data book.)
Sprinkler Wrench:
Part No. 13635W/B (double-ended wrench - Use Side A. Side B is for use with K25.2 ESFR Pendent Sprinkler VK510) Available
since 2006.
Sprinkler Cabinet:
Twelve-head capacity: Part No. 01725A (available since 1971)
4. INSTALLATION
WARNING: Viking sprinklers are manufactured and tested to meet rigid requirements of the approving agency. The sprinklers are
designed to be installed in accordance with recognized installation standards. System design must be based on ESFR design
guidelines described in the latest edition of Viking technical data, applicable FM Global Loss Prevention Data Sheets, the latest
NFPA Standards, the latest standards of Verband der Sachversicherer (VdS), Loss Prevention Council (LPCB), 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 13635W/B (shown in Figure 1) for installing ESFR Sprinkler VK503! With the sprinkler con-
tained 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.
Sprinkler 123b
TABLE 1: 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
1The sprinkler temperature rating is stamped on the deflector.
2Based 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.
OBSOLETE

ESFR PENDENT SPRINKLER
VK503 (K16.8)
TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
Sprinker 123c
Figure 1:
ESFR Pendent Sprinkler Wrench 13635W/B
Figure 2:
ESFR Pendent Sprinkler VK503 Dimensions
Approval Chart
ESFR Pendent Sprinkler VK503
Maximum 175 PSI (12 bar) WWP
Base Part
Number1SIN
NPT Thread Size Nominal
K-Factor Overall Length Listings and Approvals3,4 (Refer also to Design Criteria on page 123d.)
Inches mm U.S. metric2Inches mm cULus5FM NYC6VdS LPCB
14073 VK503 3/4” -- 16.8 242 2-7/8 73 A1, B1 A1, B1 A1, B1 -- -- -- --
14818 VK503 -- 20 mm 16.8 242 2-7/8 73 A1, B1 A1, B1 A1, B1 -- -- -- --
Approved Temperature Ratings
A - 165 °F (74 °C) B - 205 °F (96 °C)
Approved Finish
1 - Brass
Footnotes
1Base part number shown. For complete part number, refer to the price list.
2Metric K-Factor measurement shown is when pressure is measured in bar. When pressure is measured in kPa, divide the metric K-Factor shown by 10.0.
3This chart shows listings and approvals available at the time of printing. Other approvals may be in process.
4Refer to the latest standards of NFPA 13 and applicable FM Global Loss Prevention Data Sheets.
5 Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
6Accepted for use, City of New York Department of Buildings, MEA Number 89-92-E, Vol. 41.
OBSOLETE

TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
ESFR PENDENT SPRINKLER
VK503 (K16.8)
DESIGN CRITERIA
(Also refer to the Approval Chart on page 123c.)
General Guidelines:
Maximum Roof or Ceiling Slope: 2 in 12 (167 mm/m or 9.5 degrees).
Sprinkler Position: Approved for use only in the pendent position. Align the deflector parallel with the ceiling or roof.
System Type: Wet systems only.
Deflector Distance from Walls: At least 4” (102 mm) from walls, and no more than one-half the allowable distance permitted between sprinklers.
Clearance from Deflector to Top of Storage: At least 36” (914 mm).
Maximum Distance Between Sprinklers: The maximum area of coverage allowed per sprinkler is 100 ft2(9.3 m2)**.
For buildings over 30 ft (9.1 m) high, spacing between sprinklers and/or branch lines must be from 8 to 10 ft (2.4 to 3.1 m)**.
For building heights up to 30 ft (9.1 m), the spacing allowed between sprinklers and/or branch lines is 8 to 12 ft (2.4 to 3.7 m), provided the
area covered per sprinkler does not exceed the maximum 100 ft2(9.3 m2) allowed**.
**Refer to the Installation Standards for permissible deviations from the maximum sprinkler/branch line spacing rules above, to eliminate obstruc-
tions created by trusses and bar joists when using ESFR sprinklers.
Minimum Area of Coverage: The minimum area of coverage allowed per sprinkler is 64 ft2(5.8 m2).
Note: If the ceiling is beam and girder or panel construction, locate sprinklers in the bays rather than under the beams.
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cULus Listing Requirements:
ESFR Pendent Sprinkler VK503 is cULus Listed as indicated in the Approval Chart for installation in accordance with the latest appropriate NFPA
standards (including NFPA 13) for ESFR Pendent K16.8 (242 bar) Sprinklers, for:
Protecting rack storage of certain specified materials up to 35 ft (10.7 m) high in buildings with 40 ft (12.2 m) high ceilings with NO in-rack sprin-
klers.
Protecting rack storage of certain specified materials up to 40 ft (12.2 m) high in buildings with 45 ft (13.7 m) high ceilings with one row of in-rack
sprinklers.
NFPA 13 indicates the following for ESFR pendent sprinklers having a 16.8 nominal K-Factor: Position the deflector a maximum of 14” (356 mm)
and a minimum of 6” (152 mm) below the ceiling.
The minimum area of coverage allowed per sprinkler is 64 ft2(5.8 m2) per NFPA 13.
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FM Approval Requirements:
ESFR Pendent Sprinkler VK503 is FM Approved as indicated in the Approval Chart for installation in accordance with the latest applicable FM Loss
Prevention Data Sheets (including 2-2 and 8-9) and Technical Advisory Bulletins for ESFR Pendent K16.8 (242 bar) Sprinklers for:
Protecting rack storage of certain specified materials up to 35 ft (10.7 m) high in buildings with 40 ft (12.2 m) high ceilings with NO in-rack sprin-
klers.
Protecting rack storage of certain specified materials up to 40 ft (12.2 m) high in buildings with 45 ft (13.7 m) high ceilings with one row of in-rack
sprinklers.
FM Global Loss Prevention Data Sheet 2-2 provides the following positioning requirement: Install K16.8 ESFR sprinklers with the center line of
the thermal sensing element located a maximum of 13” (330 mm) and a minimum of 4” (102 mm) below the ceiling.
The minimum spacing allowed between sprinklers is 8 ft (2.4 m) and the minimum area of coverage allowed per sprinkler is 64 ft2(5.8 m2) per FM
Global Loss Prevention Data Sheet 2-2.
NOTE: The FM installation guidelines may differ from cULus and/or NFPA criteria.
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•
•
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Viking ESFR
Pendent Sprinklers are to be installed in accordance with the latest edition of Viking technical data, the latest
applicable Factory Mutual Loss Prevention Data Sheets, including 2-2 and 8-9, the latest standards of VdS, NFPA,
and any other Authorities Having Jurisdiction, and also with provisions of governmental codes, ordinances, and
standards whenever applicable.
Sprinkler 123d
OBSOLETE

ESFR PENDENT SPRINKLER
VK503 (K16.8)
TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
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 removing caps,
use care to prevent dislodging or damaging sprinkler ejector spring and fusible element. THE CAPS MUST BE REMOVED
FROM SPRINKLERS BEFORE PLACING THE SYSTEM IN SERVICE!
G. System design must be based on ESFR design guidelines described in applicable FM Global Loss Prevention Data Sheets, the
latest standards of Verband der Sachversicherer, LPCB, the National Fire Protection Association, and the Authorities Having
Jurisdiction. All requirements of recognized sprinkler system design standards apply to systems utilizing Viking ESFR Pendent
Sprinklers.
5. OPERATION
During fire conditions, the heat-sensitive fusible element assembly disengages, releasing the seat and spring assemblies to open
the waterway. Water flowing through the sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern to suppress
the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
NOTICE: The owner is responsible for maintaining the fire protection system and devices in proper operating condition. For
minimum maintenance and inspection requirements, refer to the NFPA standard that describes care and maintenance of sprinkler
systems. In addition, the Authorities Having Jurisdiction may have additional maintenance, testing, and inspection requirements
that must be followed.
A. The sprinklers must be inspected on a regular basis for corrosion, mechanical 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 replaced immediately. Sprinklers showing signs of corrosion
shall be tested and/or replaced immediately as required. Installation standards require sprinklers to be tested and, if necessary, re-
placed after a specified term of service. For Viking ESFR Pendent Sprinklers, refer to the Installation Standards (e.g., NFPA 25) and
the Authorities Having Jurisdiction for the specified period of time after which testing and/or replacement is required. Sprinklers that
have operated cannot be reassembled or reused, but must be replaced. When replacing sprinklers, use only new sprinklers.
C. The sprinkler discharge pattern is critical for proper fire protection. Therefore, nothing should be hung from, attached to, or
otherwise obstruct the discharge pattern. All obstructions must be immediately removed or, if necessary, additional sprinklers
installed.
D. When replacing existing sprinklers, the system must be removed from service. Refer to the appropriate system description and/or
valve instructions. Prior to removing the system from service, notify all Authorities Having Jurisdiction. Consideration should be
given to employment of a fire patrol in the affected area.
1. Remove the system from service, drain all water, and relieve all pressure on the piping.
2. Using the special sprinkler wrench, remove the old sprinkler and install the new unit. Care must be taken to ensure that the
replacement sprinkler is the proper model and style, with the correct orifice size, temperature rating, and response character-
istics. A fully stocked spare sprinkler cabinet should be provided for this purpose.
3. Place the system back in service and secure all valves. Check the replaced sprinklers and repair all leaks.
E. Sprinkler systems that have been subject to a fire must be returned to service as soon as possible. The entire system must
be inspected for damage and repaired or replaced as necessary. Sprinklers that have been exposed to corrosive products of
combustion, but have not operated, should be replaced. Refer to the Authorities Having Jurisdiction for minimum replacement
requirements.
Sprinkler 123e
OBSOLETE

TECHNICAL DATA
March 14, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: [phone] Technical Services 877-384-5464 Fax: [phone] Email: [email protected]
ESFR PENDENT SPRINKLER
VK503 (K16.8)
7. AVAILABILITY
Viking ESFR K16.8 Pendent Sprinkler VK503 is available through a network of domestic and international distributors. See The
Viking Corporation web site for the closest distributor or contact The Viking Corporation.
8. GUARANTEE
For details of warranty, refer to Viking’s current list price schedule or contact Viking directly.
Sprinkler 123f
Form No. F_120106 Replaces page 123a-f, dated January 4, 2008.
(Updated the materials list, added MEA/NYC Approval.)
OBSOLETE