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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
Base Part
Sprinkler
SIN
Number
Style
1
18258
VK352 Pendent
18260
VK352 Pendent
7
21364
VK352 Pendent
11
06666B
VK352 Pendent
06765B
VK352 Pendent
7
Approved Temperature Ratings
A - 135 °F (57 °C), 155 °F (68 °C), 175 °F (79 °C), 200 °F
(93 °C), 286 °F (141 °C)
B - 135 °F (57 °C), 155 °F (68 °C), 175 °F (79 °C), and
200 °F (93 °C)
C - 155 °F (68 °C), 175 °F (79 °C), and 200 °F (93 °C)
D - 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), 286 °F
(141 °C)
E - 155 °F (68 °C), 200 °F (93 °C), and 286 °F (141 °C)
Base part number shown. For complete part number, refer to Viking's current price schedule.
1
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.
2
This table shows the listings and approvals available at the time of printing. Other approvals may be in process.
3
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
4
cULus Listed as corrosion-resistant.
5
Other colors are available on request with the same Listings and Approvals as the standard colors.
6
The 1/2" NPT Large Orifice Sprinkler is listed and approved for retrofit only when installed in accordance with NFPA 13.
7
CE Certified, Standard EN 12259-1, EC-certificate of constancy of performance 0832-CPR-S0021.
8
CE Certified, Standard EN 12259-1, EC-certificate of conformity 0786-CPD-40279.
9
MED Certified, Standard EN 12259-1, EC-certificate 0832-MED-1003.
10
Approved according to China GB Standard.
11
CE: Standard EN 12259-1, Declaration of Performance DOP_VK352ENT_6-11-19
12
cULus Listing Requirements:
The Viking Microfast
Quick Response Pendent Sprinkler VK352 is cULus Listed as indicated in the Approval Chart for installation in
®
accordance with the latest edition of NFPA 13 for standard spray sprinklers.
Designed for use in Light and Ordinary Hazard occupancies.
•
The sprinkler installation rules contained in NFPA 13 for standard spray pendent sprinklers must be followed.
•
Venting is not required.
•
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Bulletin 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 gov-
ernmental codes, ordinances, and standards, whenever applicable.
Form No. F_033414
Rev 02
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
The Viking Microfast
Pendent Sprinkler VK352
Maximum 175 PSI (12 Bar) WWP
Nominal
Thread Size
K-Factor
NPT
BSPT
U.S. metric
2
3/4"
--
8.0
115.2
1/2"
--
8.0
115.2
--
20 mm
8.0
115.2
NOTICE - Product Below - Limited Availability (Contact Local Viking Office)
3/4"
--
8.0
115.2
1/2"
--
8.0
115.2
DESIGN CRITERIA - UL
(Also refer to Approval Chart 1 above.)
April 2023
TECHNICAL DATA
Approval Chart 1
Quick Response
®
Overall
Length
Inches
mm
cULus
2-1/4
58
A1Z, B1Y, C2X, D2
2-1/4
58
A1Z, B1Y, C2X, D2
2-1/4
58
E3
2-1/4
58
A1Z, B1Y, C2X, D2
2-1/4
58
A1Z, B1Y, C2X, D2
Approved Finishes
1 - Brass, Chrome, White Polyester
Polyester
, and Black PTFE
5,6
2 - ENT
5
3 - Chrome
Footnotes
MICROFAST
RESPONSE PENDENT
SPRINKLER VK352 (K8.0)
Listings and Approvals
(Refer also to Design Criteria.)
VdS
LPCB
4
A1
A1Z
D1
A1
--
D1
--
--
A1
A1Z
A1
--
Approved Escutcheons
, Black
X - Standard surface-mounted escutch-
5,6
eon or the
Viking Micromatic
Recessed Escutcheon
Y - Standard surface-mounted escutch-
eon or recessed with the Viking
Micromatic
Recessed Escutcheon
Z - Standard surface-mounted escutch-
eon
Page 4 of 6
QUICK
®
3
China
CE
MED
Approval
, D2
D1
--
8
12
, D2
--
--
8
12
--
--
E3
D1
D1
--
8
A1
--
--
9
Model E-1
®
Model E-1 or E-2
®
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