Standard Response Upright and Conventional Sprinkler
Viking Micromatic® and MicromaticHP® Standard Response Upright and Conventional(Old Style) Sprinklers are small, thermosensitive, glass-bulb
spray sprinklers available in several differentfinishes, temperature ratings, and K-Factors to meet design requirements. Thespecial Polyester, Polytetrafluoroethylene (PTFE), 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 incorrosive atmospheres and are cULus listed as corrosion resistant.
Viking standard response sprinklers may be orderedand/or used as open sprinklers (glass bulb and pip cap assembly removed) ondeluge systems
Available since 1997.
Minimum Operating Pressure: 7 psi (0.5 bar)*
K Factor: 2.8, 4.2, 5.6 & 8.0
Maximum Working Pressure: Sprinklers Vk021 and Vk124are rated for use with water working pressures ranging from the minimum 7 psi (0.5bar) up to 250 psi (17 bar) for high-pressure systems. High-pressure (HP)sprinklers can be identified by locating “250” stamped on the deflector. Allother Part Nos. not mentioned above are rated to a maximum 175 psi (12 bar)wwp.
Factory tested hydrostatically to 500 psi (34.5 bar)
Glass-bulb fluid temperature rated to -65 °F (-55°C)
*cULus Listing, FM Approval, and NFPA 13 installsrequire a minimum of 7 psi (0.5 bar). The minimum operating pressure for LPCBand CE inimum operating pressure for LPCB and CE
Approvals ONLY is 5 psi (0.35 bar).