Viking VK595 Technical Data Manual

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
1. DESCRIPTION
Viking Extended Coverage Upright Sprinkler VK595 is a thermosensitive solder link spray
sprinkler with a nominal K-factor of 25.2 for maximum coverage areas of 14 feet by 14 feet
(196 sq. ft.). The sprinkler is UL Listed as a standard response extended coverage Control
Mode Density Area (CMDA) sprinkler for storage applications. It is also FM Approved as
a quick response, extended coverage Control Mode Density Area (CMDA) sprinkler and
as a Control Mode Specific Application (CMSA) sprinkler. The VK595 is FM Approved
for storage applications. It is available with an ordinary or intermediate temperature rat-
ing to meet design requirements. The VK595 is especially advantageous as a means of
decreasing the number of required sprinklers to protect occupancies requiring an area/
density application of water.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
FM Approved: Class 2022-AS, EC Type
NOTE: This sprinkler is NOT Listed or Approved as an Early Suppression Fast Response Sprinkler.
Refer to Approval Chart 1 and Design Criteria for cULus requirements, and refer to
Approval Chart 2 and Design Criteria for FM Approval requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Available since 2011.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread Sizes: Base Part No. 16859: 1" NPT
Base Part No. 16885: 25 mm BSP
Nominal K-factor: 25.2 U.S. (363 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: 3-3/4" (95.3 mm)
Material Standards:
Sprinkler Frame: Brass
Deflector: Copper
Deflector Nut: Brass
Link Assembly: Solder, Nickel
Sealing Assembly: Beryllium Nickel with Polytetrafluoroethylene (PTFE).
Compression Screw: Stainless Steel
Button: Brass
Hook: Monel
Strut: Monel
Ejection Spring: Inconel
Ordering Information:
Order Extended Coverage Upright Sprinkler VK595 by adding the appropriate suffix for the sprinkler temperature rating to the
sprinkler base part number.
Finish Suffix: Brass = A
Temperature Suffix (°F/°C): 165°/74° = C, 212°/100° = E
For example, sprinkler VK595 with 1" NPT threads, a Brass finish, and a 165°F/74 °C temperature rating = Part No. 16859AC.
Available Finishes And Temperature Ratings:
Refer to Table 1.
Accessories: (Also refer to the Viking website.)
Form No. F_121610 22.04.14
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
)
*
(Also refer to the current Viking price list.)
Rev 22.1
EXTENDED COVERAGE
UPRIGHT SPRINKLER VK595 (K25.2)
(CMDA/CMSA)
Replaces Form No. F_121610 Rev 17.1.P65
(Updated FM references to non-storage sprinklers.)
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