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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
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 extinguish
or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
The Viking Microfast
®
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 Temperature
Classification
Ordinary
Intermediate
High
Sprinkler Finishes: Brass, Chrome, White Polyester
Decorative sprinklers may not be color coded. The temperature rating is stamped on the deflector.
1
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having Jurisdiction.
2
Refer to specific installation standards.
For automatic sprinklers, the coatings indicated are applied to the exposed exterior surfaces only. Note that the spring is exposed on sprinklers with
3
Polyester and PTFE coatings.
Form No. F_071914 18.11.05
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Quick Response Fusible Element Conventional Sprinkler VK355 is available through a network of domestic
TABLE 1: AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES
Sprinkler Nominal
Temperature Rating
165 °F (74 °C)
205 °F (96 °C)
280 °F (138 °C)
Protective Sprinkler Clip
Wrench Flat
Rev 18.2.P65
TECHNICAL DATA
1
, and Black Polyester
3
3
Footnotes
Figure 1:
Standard Sprinkler Wrench 21475M/B
MICROFAST
RESPONSE FUSIBLE
ELEMENT CONVENTIONAL
SPRINKLER VK355 (K8.0)
Maximum Ambient
Ceiling Temperature
2
100 °F (38 °C)
150 °F (65 °C)
225 °F (107 °C)
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QUICK
®
Frame Paint
Color
None
White
Blue
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