ESFR PENDENT SPRINKLER
VK500 (K14.0)
TECHNICAL DATA
Page 1 of 6
Form No. F_060198 18.06.21 Rev 18.1
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
1. DESCRIPTION
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK500 is a fast
response fusible element type sprinkler designed for early fire suppression. With a 14.0
(202 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 VK500 ESFR Pendent Sprinklers may be used in the protection of ordinary types
of storage. However, they are primarily intended to protect the following types of stor-
age, which tend to produce severe-challenge fires: palletized and solid pile storage and
single, double, multiple row, and portable open rack storage (no open-top containers
or solid shelves).
Viking ESFR Pendent VK500 Sprinklers provide protection of most common storage
materials, including:
--Encapsulated or unencapsulated Class I, II, III, and IV commodities*.
--Cartoned and uncartoned unexpanded plastics*.
--Cartoned and uncartoned expanded plastics*.
* Refer the Approval Charts and Design Criteria on pages 3-4 for cULus Listing 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 VK500.
2. LISTINGS AND APPROVALS
cULus Listed:
Category VNWH
FM Approved:
Class 2008
NYC Approved:
MEA 89-92-E, Volume 18
VdS Approved:
Certificate G4010001
CE Certified:
Standard CUAP11.03/03, EC-certificate of conformity 1725-CPD-H0005, ETA-10/0306
CCCF Approved:
Approved by the China Certification Center for Fire Products (CCCF)
The 10284 and 11350, VK500, ESFR Pendent Sprinkler Assembly conforms to the provision of CUAP11.03/03 standard.
CUAP11.03/03 approvals are provided by: FM Approvals Ltd. 1 Windsor Dials Windsor, Berkshire, UK. SL4 1 RS
Approval Certificate No. issued December 20, 2010.
NOTE:
Other International approval certificates are available upon request.
Refer Approval Chart 1 and Design Criteria on page 3 for cULus Listing requirements that must be followed, and refer to Approval
Chart 2 and Design Criteria on page 4 for FM Approval requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Available since 2000.
Minimum Operating Pressure: Refer to NFPA 13 or FM Global Loss Prevention Data Sheets.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread size: 3/4” (20 mm) NPT
Nominal K-Factor: 14.0 U.S. (202 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)
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Replaces Form No. F_060198 Rev 17.1
(Revised mages.)
