STANDARD RESPONSE
CONCEALED PENDENT
SPRINKLER VK4921 (K5.6)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
T
elephone:
269-945-9501
T
echnical
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
Page 2 of 9
Form No. F_092221 21.12.02 Rev 21.3
5. OPERATION
During fire conditions, when the temperature around the sprinkler approaches its operating temperature, the cover plate detaches,
releasing the deflector. Continued heating of the exposed sprinkler causes the heat-sensitive liquid in the glass bulb to expand,
causing the glass to shatter, releasing the pip cap and sealing spring assembly. Water flowing through the sprinkler orifice strikes
the deflector, forming a uniform spray pattern over a specific area of coverage determined by the water supply pressure at the
sprinkler to extinguish or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
Viking Sprinklers are 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.
TABLE 1: ORDERING INFORMATION
Instructions:
(1) Select a Sprinkler Base Part Number
(2) Add the suffix for the desired Finish
(3) Add the suffix for the desired Sprinkler Temperature Rating
(4) Order a cover plate (refer to Table 2)
Example:
24683AE = 200 °F (93 °C) Temperature Rated Sprinkler with a standard Brass finish.
Sprinkler
Base Part
No.
Size 1: Finishes 2: Temperature Ratings
NPT BSPT Description Suffix1
Sprinkler
Temperature
Classification
Nominal
Rating
Bulb
Color
Max. Ambient
Ceiling Temperature2Suffix
24683 1/2” -- Brass A Oridinary 155 °F (68 °C) Red 100 °F (38 °C) B
23116 -- 1/2” ENT 3,4,6 JN
Intermediate
175 °F (79 °C) Yellow 150 °F (65 °C) D
Intermediate
200 °F (93 °C) Green 150 °F (65 °C) E
Accessories
Sprinkler Wrenches and Tools (see Figure 1):
A. Installation wrench: 243395
B. Protective cap removal tool: 24340
C. Concealed Cover Plate Installer Tool Part Number: 144127(available since 2007)
D. Large Concealed Cover Plate Installer Tool Part No. 148677(available since 2007)
Sprinkler Cabinet:
Part number 01731A.
Footnotes
1. Where a dash (-) is shown in the Finish suffix designation, insert the desired Temperature Rating suffix. See example above.
2. Based on NFPA 13, NFPA 13R, and NFPA 13D. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having
Jurisdiction. Refer to specific installation standards.
3. UL Listed as corrosion resistant.
4. The corrosion resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Chart. These tests cannot and
do not represent all possible corrosive environments. Prior to installation, verify through the end-user that the coatings are compatible with or suitable for the proposed
environment. For automatic sprinklers, the ENT coating is applied to all exposed exterior surfaces, including the waterway.
5. Requires a 3/8” ratchet (not available from Viking).
6. FM Approved as a decorative finish.
7. The installer tool is for push-on style cover plates only.
8. Requires a peice of 1” PVC pipe or similar to attach.
