Viking® VK3521, XT1, 8.0K, Standard, Pendent, QR, 3/4" NPT, White, 200 Degree 23878ME/W Fire Sprinkler Head b479 The addition of a larger

The addition of a larger K-Factor allows ESFR performance at lower end-head pressures than ESFR K14 sprinklers

AA202128R9

Manufacturer Part Numbers:  ST01000000

obstructed ceiling construction as defined and permitted by NFPA 13

57-331-1-286

Viking® VK3521, XT1, 8.0K, Standard, Pendent, QR, 3/4" NPT, White, 200 Degree 23878ME/W Fire Sprinkler Head b479 The addition of a largerViking VK3521, XT1, 8. 0K, Standard, Pendent, QR, 3 4" NPT, White, 200 Degree 23878ME W Fire Sprinkler Head The Viking VK3521 Quick Response Pendent Sprinkler is a small thermosensitive glass bulb spray sprinkler available with various 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