Early Suppression Fast Response

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Early Suppression Fast Response (ESFR) Sprinklers

Viking’s Early Suppression Fast Response (ESFR) Sprinklers are high volume ceiling mounted sprinklers that exceed in the protection for severe challenging fires such as palletised and solid pile storage and single, double, and portable open rack storage (no open-top containers or solid shelves). A key advantage of an ESFR system over a Conventional sprinkler system is the possible elimination of the requirement for in-rack sprinklers in rack storage areas. ESFR systems are also specially designed to suppress the fire by discharging a large volume of water directly to the fire to reduce the heat release rate, while regular systems aim to simply control the fire.

Viking’s Model VK514 is now FM Approved as a Quick Response Storage Sprinkler providing ceiling-only sprinkler protection for storage facilities up to 16.7m in height. The K28 ESFR can help increase racking flexibility while also reducing the installation and maintenance costs associated with in-rack sprinklers. It has a Design Pressure of 5.5 bar. The K28 is available in ordinary and intermediate temperature ratings - 74° C and 96° C.

Storage Sprinkler Quick Reference Guide

This guide is intended for general reference only. Prior to the design, layout, and/or installation of any sprinkler system, please refer to the technical documentation and always consult with the AHJ. FlameStop makes no representation or warranty as to whether following this guide will satisfy any rule or requirement. Please visit our downloads section for the most current technical data and product specifications. All products must be installed in accordance with the manufacturer's current installation instructions. FlameStop reserves the right to change product specifications at any time without notice and without incurring obligation.

UprightPendentDry Pendent
VK520 (p/n 10625)
VK500 (p/n 10284) Temp Range 74-96°C
VK502 (p/n 18177, 18176) Temp Range 74°C
VK503 (p/n 14073) Temp Range 74-96°C
VK504 (p/n 19016, 19015) Temp Range 74-96°C
VK506 (p/n 18493) Temp Range 74-96°C
VK510 (p/n 12080) Temp Range 74-96°C
VK514 (p/n 22894, 19592) Temp Range 74-96°C
GB - Glass Bulb
FL - Fusible Link
** - New XT1 Platform
- Also available in fusible link version
(NOTE) The above photos are for illustrative purposes only and might not exactly match the sprinkler indicated. Always refer to the technical documentation for product dimensions and physical characteristics.