Viking Micromatic® and MicromaticHP® StandardResponse Pendent Sprinklers are small, thermosensitive, glass-bulb spraysprinklers available in several different finishes, temperature ratings, andK-Factors to meet design requirements. The special Polyester,Polytetrafluoroethylene (PTFE), and Electroless Nickel PTFE (ENT) coatings canbe used in decorative applications where colors are desired. In addition, these coatings have beeninvestigated for installation in corrosive atmospheres and are cULus listed ascorrosion 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)
Maximum Working Pressure: sprinklers Vk023 and Vk122 are rated for use with water working pressures ranging from the minimum 7 psi (0.5 bar) up to 250 psi (17 bar) for high-pressure systems. High-pressure (HP) sprinklers can be identified by locating “250” stamped on the deflector. All other Part Nos. not mentioned above are rated to a maximum 175 psi (12 bar) wwp.
Factory tested hydrostatically to 500 psi (34.5 bar)
Nominal K-Factor: 2.8, 4.2, 5.6, 8.0
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
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