Viking VK503 – ESFR Pendent Sprinkler (K16.8)

Sprinklers & Valves (Wet System)

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VK503 – ESFR Pendent Sprinkler (K16.8)

The VK503 is a high-performance ESFR pendent sprinkler with a larger K-Factor of 16.8, enabling greater water discharge for challenging fire hazards in modern storage facilities.

Key Features

  • ESFR fast-response suppression

  • K-Factor 16.8 for high-volume discharge

  • Large droplet formation for deep fire penetration

  • Reduces/eliminates in-rack sprinkler requirements

  • Suitable for high-pile commodity storage

  • UL Listed & FM Approved

Download E-Brochure

  • Type: ESFR Pendent

  • K-Factor: 16.8 (242 metric)

  • Max Working Pressure: 175 psi

  • Temperature Rating: 155°F–286°F

  • Materials: Brass body, stainless steel deflector

  • Finishes: Brass, Chrome

  • Connection Size: 3/4″ NPT

  • High-bay warehouses

  • Logistics hubs

  • Storage of Class I–IV & certain plastic commodities

  • Industrial racking systems

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