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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
1. DESCRIPTION
Viking Quick Response Extra-Large Orifice Pendent Sprinkler VK377 is a
thermosensitive glass bulb spray sprinkler available in several different finishes
and temperature ratings to meet design requirements. The special Polyester and
Electroless Nickel PTFE (ENT) coatings can be used in decorative applications
where colors are desired. In addition, these coatings have been investigated for
installation in corrosive environments and are listed/approved as indicated in the
Approval Charts.
The extra-large orifice provides greater flows at lower pressures than standard orifice
or large orifice sprinklers. This feature allows reduced pipe sizing for hydraulically
calculated sprinkler systems, which require high densities of water. Viking Quick
Response Extra-Large Orifice Sprinklers may eliminate the need for a fire pump or
reduce the size of the pump if it is required. On existing systems, replacing large
orifice sprinklers with extra-large orifice sprinklers may provide the higher densities
required to allow an increase in the hazard classification of an occupancy.
Viking quick response sprinklers may be ordered and/or used as open sprinklers
(glass bulb and pip cap assembly removed) on deluge systems. Refer to Ordering
Instructions below.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
FM Approved: Class 2009
VdS Approved: Certificate G413049, G413051
LPCB Approved: Certificate 096e/14
Refer to the Approval Charts and Design Criteria for requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Available since 1993.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread size: See Approval Charts
Nominal K-factor: 11.2 U.S. (161.3 metric*)
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length: 2-5/16" (58.7 mm)
* 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.
Material Standards:
Sprinkler Frame: Brass UNS-C84400
Deflector: Brass UNS-C51000
Bulb: Glass, nominal 3 mm diameter
Pip Cap and Insert Assembly: Copper UNS-C11000, or Leaded Bronze (UNS-C31600 or UNS-C31400) and Stainless Steel UNS-S30400
Compression Screw: Brass UNS-C36000
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
For Polyester Coated Sprinklers: Belleville Spring-Exposed
For ENT Coated Sprinklers: Belleville Spring-Exposed, Screw and Pipcap-ENT plated
Finishes and temperatures:
Finish:
Brass
Suffix:
Temperature:
155 °F (68 °C)
Suffix:
Ordering Information: (Refer to Table 1 and the current Viking List Price Book.)
Form No. F_030993
22.04.14
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Chrome
A
F
175 °F (79 °C)
B
D
Rev 22.1
White Polyester
Black Polyester
M-/W
M-/B
200 °F (93 °C)
286 °F (141 °C)
E
G
(Updated FM references to non-storage sprinklers.)
QUICK RESPONSE
ELO PENDENT
SPRINKLER VK377
(STORAGE-DENSITY/AREA)
ENT
JN
--
--
Replaces Form No. F_030993 Rev 21.1
Page 1 of 6
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Summary of Contents for Viking QUICK RESPONSE ELO VK377
- Page 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: techsvcs@vikingcorp.com Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com 1. DESCRIPTION Viking Quick Response Extra-Large Orifice Pendent Sprinkler VK377 is a thermosensitive glass bulb spray sprinkler available in several different finishes and temperature ratings to meet design requirements.
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Page 2: Technical Data
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements. 7. AVAILABILITY Viking Sprinkler Model VK377 is available through a network of domestic and international distributors. See The Viking Corporation web site for the closest distributor or contact The Viking Corporation. - Page 3 IMPORTANT: Always refer to Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. F_080614 for general care, installation, and maintenance information. Viking sprinklers are to be installed in accordance with the latest edition of Viking Technical Data, the appropriate standards of NFPA, LPCB, APSAD, VdS or other similar organizations, and also with the provisions of governmental codes, ordinances, and standards, whenever applicable.
- Page 4 IMPORTANT: Always refer to Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. F_080614 for general care, installation, and maintenance information. Viking sprinklers are to be installed in accordance with the latest edition of Viking Technical Data, the appropriate standards of NFPA, LPCB, APSAD, VdS or other similar organizations, and also with the provisions of governmental codes, ordinances, and standards, whenever applicable.
- Page 5 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: techsvcs@vikingcorp.com Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com Celing Opening Size: Minimum: 2-5/16ʺ (59 mm) Maximum: 2-1/2ʺ...
- Page 6 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: techsvcs@vikingcorp.com Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com 1. Install the escutcheon inner ring onto the sprinkler 2.
- Page 7 Refer to the appropriate technical data page and NFPA standards for complete care, handling, installation, and maintenance instructions. For additional product and system information Viking data pages and installation instructions are available on the Viking Web site at www.vikinggroupinc.com.
- Page 8 * Refer to the appropriate current technical data pages for complete care, handling, and installation instructions. Data pages are included with each shipment from Viking or Viking distributors. They can also be found on the Web site at www. vikinggroupinc.com.
- Page 9 • while ceiling finish work is being completed. Use only the designated Viking recessed sprinkler wrench (refer to the appropriate sprinkler data page) to install these sprinklers. NOTE: The protective cap is • temporarily removed during installation and then placed back on the sprinkler for protection until finish work is completed.
- Page 10 Take care not to crack the wax coating on the units. • For touching up the wax coating after installation, wax is available from Viking in bar form. Refer to Table 1 below. The coating MUST be repaired after •...
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Page 11: Listings And Approvals
1. DESCRIPTION Viking fire sprinklers consist of a threaded frame with a specific waterway or orifice size and a deflector for distributing water in a specified pattern. A closed or sealed sprinkler refers to a complete assembly, including the thermosensitive operating element. An open sprinkler does not use an operating element and is open at all times. - Page 12 TECHNICAL DATA SPRINKLER OVERVIEW 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: techsvcs@vikingcorp.com VERTICAL SIDEWALL (VSW) SPRINKLER: A sprinkler intended for installation near the wall and ceiling. The deflector provides a water spray pattern outward in a quarter-spherical pattern and can be installed in the upright or pendent position with the flow arrow in the direction of discharge.
- Page 13 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.
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Page 14: Warranty Terms And Conditions
For more information, go to www.P65Warnings.ca.gov 2. WARRANTY TERMS AND CONDITIONS For details of warranty, refer to Viking’s current list price schedule at www.vikinggroupinc.com or contact Viking directly. New Bulletin Form No. F_111218 18.11.15...
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