Standard Response UprighT and Conventional Sprinklers, UL LISTED
Category : Fire Sprinkler
Standard Response Upright and Conventional (Old Style) Sprinklers are small, thermosensitive, glass-bulb
spray sprinklers available in several different finishes, temperature ratings,
and K-Factors to meet design requirements. The special 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 in corrosive atmospheres
and are listed/approved as corrosion resistant as indicated in the Approval
Chart. (Note: FM Global approves the ENT coating as corrosion resistant. FM
Global has no approval classification for PTFE and Polyester coatings as corrosion
resistant.)
Minimum Operating Pressure: 7 psi (0.5 bar)*
Maximum Working Pressure: Sprinklers VK021 and VK124 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)
Thread size: Refer to the Approval Charts
Nominal K-Factor: Refer to the Approval Charts
Glass-bulb fluid temperature rated to -65 °F (-55 °C)