Viking VK510 Technical Data Manual

Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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1. DESCRIPTION
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK510
incorporates the capability to suppress specific high-challenge fires. The
addition of a larger K-Factor allows ESFR performance at lower end-head
pressures than ESFR K14 sprinklers. K25.2 ESFR sprinklers can:
• Eliminate the use of in-rack sprinklers when protecting high-piled
storage of certain specified materials up to specific heights.*
• Reduce or eliminate the need for a system fire pump.
• Provide flexibility when sizing system piping.
Viking VK510 ESFR Pendent Sprinklers are primarily intended to protect
the following types of storage, 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 VK510 Sprinklers provide protection of most
common storage materials, including:
• Encapsulated or unencapsulated Class I, II, III, and IV commodities*.
• cULus Listed for protection of cartoned unexpanded plastic
commodities and FM Approved for protection of cartoned and uncartoned
unexpanded plastic commodities*.
• FM Approved for protection of exposed expanded polystyrene and
exposed expanded polyurethane commodities*.
In addition, some storage arrangements of rolled paper, flammable liquids,
aerosols, and rubber tires may be protected by Viking ESFR Pendent
Sprinkler VK510.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNWH (Listed as a Specific Application
ESFR Sprinkler)
FM Approved: Class 2026
VdS Approved: Certificate G4040015
LPCB Approved: Ref. No. 096g/01
China Approval: Approved according to China GB Standard
CE CPR: EAD 100002-00-1106 March 2016, Declaration of Performance DOP_VK510.
The 10280 VK510, 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 the Approval Chart and Commodity Selection and Design Criteria Overview for cULus Listing and FM Approval requirements that must be
followed.
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.
Form No. F_100102 Rev 04
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
April 2024
ESFR PENDENT
SPRINKLER VK510 (K25.2)
TABLE 1
SPRINKLER GENERAL INFORMATION
Item
Sprinkler Identification
Number (SIN)
K-factor, gpm/psi (lpm/bar )
½ ½
Thread Size
Sprinkler Orientation
Maximum Working Pressure
PSI (bar)
Replaces Form No F_100102 Rev 03
(Added CE approval in all approval sections.)
Page 1 of 9
Description
VK510
25.2 (363)
1" NPT (25mm BSPT)
Pendent
175 psi (12 bar)