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VK4621 and VK4921 Concealed Pendent Sprinklers

  • New concealed pendent sprinklers serve as straight replacements for the VK462 and VK463 concealed pendent sprinklers, and are designed for installation on concealed pipe systems where the appearance of a smooth ceiling is desired.
  • The VK4621 is a quick and standard response pendent and the VK4921 is a standard response pendent sprinkler.
  • The glass bulb sprinklers have a thread size of 1/2" NPT and are available in ordinary 155°F (68°C), and intermediate 175°F (79°C) and 200°F (93°C) temperature ratings.
  • Available finishes include brass and an ENT coating for environments in which corrosion is more likely to occur.
  • The new sprinklers are UL Listed for a maximum working pressure of 250 psi.
  • New installation (23143) and heavy duty (22978MB) wrenches allow for easy installation while leaving the protective cap in place.
  • The durable protective caps are designed to protect the sprinkler from overspray.