Viking MICROMATIC VK102 Technical Data Manual

Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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1. DESCRIPTION
The Viking Micromatic® Standard Response Pendent VK102 Sprinkler is a small, 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.
Viking standard 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.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
FM Approved: Classes 2001, 2002, 2015, 2017, 2043
VdS Approved: Certificate G414006 & G414004
LPCB Approved
CE: Standard EN 12259-1, DOP_Sprinklers_LPCB_5-2-19 & DOP_VK102WAX_2-12-19
MED Certified: Standard EN 12259-1, EC-certificate 0832-MED-1003
China Approval: Approved according to China GB standard.
UKCA Approved: Standard EN 12259-1; Certificate Number 0832-UKCA-CPR-S5029; UKCA DOC_S5029; 2021
NOTE:
Other International approval certificates are available upon request.
Refer to Approval Charts and Design Criteria for listing and 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)
Thread size: 1/2" NPT, 15 mm BSPT
Nominal K-factor: 5.6 U.S. (80.6 metric**)
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length: 2-1/4" (57 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).
** Metric K-factor measurement 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: Phosphor Bronze UNS-C51000 (Not for FM Approval) or Copper UNS-C19500
Bulb: Glass, nominal 5 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
For ENT coated Sprinklers: Belleville Spring - Exposed, Screw and Pipcap - ENT plated.
Ordering Information: Refer to Table 1
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.
Form No. F_031414 Rev 02
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
November 2023
MICROMATIC STANDARD
®
RESPONSE PENDENT
SPRINKLER VK102 (K5.6)
Replaces Form No. F_031414 Rev 01
(added UKCA.)
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