Viking VK4621 – Quick Response Concealed Pendent Sprinkler (K5.6)

Sprinklers & Valves (Wet System)

VK4621 – Quick Response Concealed Pendent Sprinkler (K5.6)

The VK4621 is a quick response concealed pendent sprinkler suited for life-safety applications where aesthetics and fast activation are both required.

Key Features

  • Quick Response element

  • Concealed low-profile design

  • K-Factor 5.6 for efficient spray

  • Cover plate detaches before activation

  • UL/FM Approved

  • Type: Concealed Pendent – Quick Response

  • K-Factor: 5.6 (80.6 metric)

  • Max Working Pressure: 175 psi

  • Temperature Rating: 135°F–200°F

  • Materials: Brass body, stainless steel deflector

  • Cover Plate Finish: White, Chrome, Custom

  • Connection Size: 1/2″ NPT

  • Hotels & hospitality

  • Residential high-rise

  • Offices and commercial spaces

  • Healthcare environments

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