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Page 1 of 4
TECHNICAL DATA
MICROFAST® QUICK
RESPONSE UPRIGHT
SPRINKLER VK345 (K5.6)
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
1. DESCRIPTION
The Viking Microfast® Quick Response Upright Sprinkler VK345 is a small, thermosensitive, glass-bulb spray sprinkler available in several different finishes, temperature ratings, and K-Factors to meet design requirements. The special Polyester
coatings can be used in decorative applications where colors are desired. In
addition, these coatings have been investigated for installation in corrosive atmospheres and are listed/approved as corrosion resistant as indicated in the Approval
Charts. (Note: FM Global has no approval classification for Polyester coatings as
corrosion resistant.)
2. LISTINGS AND APPROVALS
FM Approved: Class Series 2000
VdS Approved: Certificates G414011
LPCB Approved
CE Certified: Standard EN 12259-1, EC-certificate of conformity 0832-CPD-2001
CCCF Approved: Approved by the China Certification Center for Fire Products (CCCF)
NOTE: Other International approval certificates are available upon request.
Refer to Approval Chart 2 and Design Criteria FM Approval requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Minimum Operating Pressure: 7 psi (0.5 bar)*
Maximum Working Pressure: 175 psi (12 bar) wwp.
Factory tested hydrostatically to 500 psi (34.5 bar)
Testing: U.S.A. Patent No. 4,831,870
Thread size: 15 mm BSP
Nominal K-Factor: 5.6 U.S. (80.6 metric**)
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length: 2-3/16” (56 mm)
*cULus Listing, FM Approval, and NFPA 13 installs require a minimum of 7 psi (0.5 bar).
The minimum operating pressure for LPCB and CE Approvals ONLY is 5 psi (0.35 bar).
Material Standards:
Viking Technical Data may be found on
The Viking Corporation’s Web site at
http://www.vikinggroupinc.com.
The Web site may include a more recent
edition of this Technical Data Page.
Frame Casting: Brass UNS-C84400
Deflector: Copper UNS-C19500
Bulb: Glass, nominal 3 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with
PTFE Tape
Screw: Brass UNS-C36000
Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400
For Polyester Coated Sprinklers: Belleville Spring-Exposed
Ordering Information: (Also refer to the current Viking price list.)
Order Microfast® and MicrofastHP® Quick Response Upright and Conventional Sprinklers by first adding the appropriate suffix for
the sprinkler finish and then the appropriate suffix for the temperature rating to the sprinkler base part number.
Finish Suffix: Brass = A, Chrome = F, White Polyester = M-/W, and Black Polyester = M-/B
Temperature Suffix (°F/°C): 135°/57° = A, 155°/68° = B, 175°/79° = D, 200°/93° = E, and 286°/141° = G
For example, sprinkler VK345 with a 15 mm thread, Brass finish and a 155 °F/68 °C temperature rating = Part No. 12984AB
Available Finishes And Temperature Ratings: Refer to Table 1.
Accessories: (Also refer to the “Sprinkler Accessories” section of the Viking data book.)
Sprinkler Wrench: Standard Wrench: Part No. 10896W/B (available since 2000)
Sprinkler Cabinets:
A. Six-head capacity: Part No. 01724A (available since 1971)
B. Twelve-head capacity: Part No. 01725A (available since 1971)
Form No. F_033114 Rev 15.1
(Added CCCF Approval)
Page 2 of 4
MICROFAST® QUICK
RESPONSE UPRIGHT
SPRINKLER VK345 (K5.6)
TECHNICAL DATA
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
4. INSTALLATION
Refer to appropriate NFPA Installation Standards.
5. OPERATION
During fire conditions, the heat-sensitive liquid in the glass bulb expands, causing the glass to shatter, releasing the pip cap and
sealing spring assembly. Water flowing through the sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern
to extinguish or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
The Viking Microfast® Quick Response Upright Sprinkler VK345 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.
8. GUARANTEE
For details of warranty, refer to Viking’s current list price schedule or contact Viking directly.
TABLE 1: AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES
Sprinkler Temperature
Classification
Sprinkler Nominal
Temperature Rating1
Maximum Ambient
Ceiling Temperature2
Bulb Color
Ordinary
Ordinary
Intermediate
Intermediate
High
135 °F (57 °C)
155 °F (68 °C)
175 °F (79 °C)
200 °F (93 °C)
286 °F (141 °C)
100 °F (38 °C)
100 °F (38 °C)
150 °F (65 °C)
150 °F (65 °C)
225 °F (107 °C)
Orange
Red
Yellow
Green
Blue
Sprinkler Finishes: Brass, Chrome, White Polyester, and Black Polyester
Footnotes
The sprinkler temperature rating is stamped on the deflector.
2
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having Jurisdiction.
Refer to specific installation standards.
1
Protective Sprinkler Cap
Wrench Flat
Figure 1:
Standard Sprinkler Wrench 10896W/B
Form No. F_033114 Rev 15.1
Page 3 of 4
MICROFAST® QUICK
RESPONSE UPRIGHT
SPRINKLER VK345 (K5.6)
TECHNICAL DATA
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
Approval Chart 1 (UL)
Microfast® Quick Response
Upright Sprinkler VK345
Maximum 175 PSI (12 bar) WWP
Base Part
Number1
SIN
12984
VK345
Thread Size
NPT
--
BSP
15 mm
Nominal K-Factor
U.S.
5.6
metric2
80.6
Overall Length
Inches
2-3/16
mm
56
Listings and Approvals3
cULus
--
VdS
A1
LPCB
A1
5
6
B1
--
B2
B1
B1
--
NOTICE - Product Below - Limited Availability (Contact Local Viking Office)
07060
VK345
--
15 mm
5.6
80.6
2-3/16
56
--
A1
A1
Approved Temperature Ratings
Approved Finishes
A - 135 °F (57 °C), 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), and
1 - Brass, Chrome, White Polyester4, and Black Polyester4
286 °F (141°C)
2 - Chrome
B - 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), and 286 °F (141°C)
Footnotes
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
Other colors are available on request with the same Listings and Approvals as the standard colors.
5
CE Certified, Standard EN 12259-1, EC-certificate of conformity 0832-CPD-2001.
6
MED Certified, Standard EN 12259-1, EC-certificate of conformity 0832-MED-1003 and 0832-MED-1008.
1
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to page
QR1-3 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.
Form No. F_033114 Rev 15.1
Page 4 of 4
MICROFAST® QUICK
RESPONSE UPRIGHT
SPRINKLER VK345 (K5.6)
TECHNICAL DATA
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
Approval Chart 2 (FM)
Microfast® Quick Response
Upright Sprinkler VK345
Maximum 175 PSI (12 bar) WWP
Base Part
Number1
SIN
12984
VK345
Thread Size
Nominal K-Factor
Overall Length
NPT
BSP
U.S.
metric2
Inches
mm
FM Approvals3
(Refer also to Design Criteria below.)
--
15 mm
5.6
80.6
2-3/16
56
A1
NOTICE - Product Below - Limited Availability (Contact Local Viking Office)
07060
VK345
--
15 mm
5.6
80.6
2-3/16
Approved Temperature Ratings
A - 135 °F (57 °C), 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), and 286 °F (141°C)
56
A1
Approved Finishes
1 - Brass, Chrome, White Polyester4, and Black
Polyester4
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.
This table shows the FM Approvals available at the time of printing. Check with the manufacturer for any additional approvals.
4
Other colors are available on request with the same Approvals as the standard colors.
3
DESIGN CRITERIA - FM
(Also refer to Approval Chart 2 above.)
FM Approval Requirements:
The Microfast® Quick Response Upright Sprinkler VK345 is FM Approved as a quick response Non-Storage upright sprinkler as indicated in the FM
Approval Guide. For specific application and installation requirements, reference the latest applicable FM Loss Prevention Data Sheets (including Data
Sheet 2-0). FM Global Loss Prevention Data Sheets contain guidelines relating to, but not limited to: minimum water supply requirements, hydraulic
design, ceiling slope and obstructions, minimum and maximum allowable spacing, and deflector distance below the ceiling.
NOTE: The FM installation guidelines may differ from cULus and/or NFPA criteria.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to page
QR1-3 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, FM Global, LPCB,
APSAD, VdS or other similar organizations, and also with the provisions of governmental codes, ordinances, and
standards, whenever applicable.
Form No. F_033114 Rev 15.1
(Added CCCF Approval)