MICROMATIC
®
STANDARD
RESPONSE PENDENT
SPRINKLER VK202 (K8.0)
TECHNICAL DATA
Page 1 of 8
Form No. F_032614 21.03.16 Rev 21.1
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
1. DESCRIPTION
The Viking Micromatic
®
Standard Response Pendent VK202 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
atmospheres and are listed/approved as corrosion resistant 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:
Class Series 2000
VdS Approved:
Certificate G414015, G414016, G4040098, G4060058, and G4060059
CE:
Standard EN 12259-1, EC Certificate of conformity 2831-CPR-S2001, Declaration
of Performance DOP_Sprinklers_LPCB_5-2-19 and DOP_VK202W_11-1-21
China Approval:
Approved according to China GB Standard
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 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, 3/4” NPT, 20 mm BSPT
Nominal K-Factor: 8.0 U.S. (115.2 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 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
Deflector: Phosphor Bronze UNS-C51000
††
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.
††Not for FM Approval.
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.
Replaces Form No. F_032614 Rev 20.1
(Updated Approval Chart 1 and Footnotes in Approval Chart 1)
