Viking MICROFAST VK310 Technical Data Manual

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
The Viking Microfast
®
tive, 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 instal-
lation in corrosive atmospheres and are listed as corrosion resistant as indicated in the Approval
Charts.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
LPCB Approved: Certificate 096e/04
CE Certified: Standard EN 12259-1, EC-Certificate of constancy of performance 0832-
CPR-S0021
MED Certified: Standard EN 12259-1, EC-certificate of conformity 0832-MED-1003
NOTE: Other International approval certificates are available upon request.
Refer to Approval Chart 1 and Design Criteria for cULus Listing requirements.
3. TECHNICAL DATA
Specifications:
Minimum Operating Pressure: 7 psi (0.5 bar)*
Maximum Working Pressure: 175 psi (12 bar)
Factory tested hydrostatically to 500 psi (34.5 bar)
Testing: U.S.A. Patent No. 4,831,870
Thread size: 1/2" (15 mm) NPT
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, 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).
** Metric K-factor measurment shown is in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Material Standards:
Frame Casting: Brass UNS-C84400 or QM Brass
Deflector: Brass UNS-C26000
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:
Order Microfast Quick Response Conventional Sprinkler VK310 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 VK310 with a 1/2" thread, Brass finish and a 155 °F/68 °C temperature rating = Part No. 19391AB
Available Finishes And Temperature Ratings: Refer to Table 1.
Accessories: (Also refer to the Viking website.)
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_022514 18.11.05
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Quick Response Conventional Sprinkler VK310 is a small, thermosensi-
(Also refer to the current Viking price list.)
Rev 18.1.P65
TECHNICAL DATA
MICROFAST QUICK
®
RESPONSE CONVENTIONAL
SPRINKLER VK310 (K5.6)
Replaces Form No. F_022514 Rev 18.1
(Added P65 Warning.)
Page 1 of 3