MICROFAST
®
QUICK
RESPONSE FUSIBLE
ELEMENT CONVENTIONAL
SPRINKLER VK311 (K5.6)
TECHNICAL DATA
Page 3 of 3
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.
Form No. F_022614 18.11.05 Rev 17.1.P65
Approval Chart 1 (UL)
Microfast
®
Quick Response Fusible Element Conventional Sprinkler VK311
Maximum 175 PSI (12 bar) WWP
Base Part
Number
1
SIN
Thread Size
Nominal K-Factor
Overall Length
Listings and Approvals
3
(Refer also to Design Criteria below.)
NPT
BSP
U.S.
metric
2
Inches
mm
cULus
4
Conventional-Standard Orifice
19392
VK311
1/2”
15 mm
5.6
80.6
2-3/16
56
A1
NOTICE - Product Below - Limited Availability (Contact Local Viking Office)
13952
VK311
1/2”
15 mm
5.6
80.6
2-3/16
56
A1
Approved Temperature Ratings
A - 165 °F (74 °C), 205 °F (96 °C), and 280 °F (138 °C)
Approved Finishes
1 - Brass, Chrome, White Polyester
5
, and Black Polyester
5
Footnotes
1
Base part number is shown. For complete part number, refer to Viking’s current price schedule.
2
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.
3
This table shows the listings and approvals available at the time of printing. Check with the manufacturer for any additional approvals.
4
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
5
Other colors are available on request with the same Listings and Approvals as the standard colors.
DESIGN CRITERIA - UL
(Also refer to Approval Chart 1 above.)
cULus Listing Requirements:
Quick Response Fusible Element Conventional (Old Style) Sprinkler VK311 is cULus Listed as indicated in the Approval Chart for installation in ac-
cordance with the latest edition of NFPA 13 for old style (conventional) sprinklers.
•
Designed for use in Light and Ordinary Hazard occupancies
•
The sprinkler installation rules contained in NFPA 13 for standard spray old style (conventional) sprinklers must be followed.
IMPORTANT: Always refer to Bulletin 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.
Replaces form F_071614 Rev. 17.1
(Added P65 Warning.)
