Viking VK351 K8.0 Upright Quick Response Fire Sprinkler

The Viking VK351 K8.0 Upright Quick Response Fire Sprinkler is engineered for demanding commercial and industrial fire suppression applications, including warehouses, manufacturing facilities, and mechanical rooms. Installed primarily in upright orientations on wet, dry, pre-action, or deluge systems with exposed piping, this device directs water spray against an internal deflector to project a uniform, cascading pattern over high-density storage and ordinary hazard areas.

Designed to satisfy strict regulatory compliance, this component aligns with NFPA 13 installation guidelines and NFPA 25 maintenance standards. The quick-response fusible link mechanism delivers rapid thermal sensitivity to contain fires at their point of origin, thereby mitigating the risk of flashover and satisfying commercial life safety requirements.

• Quick Response Thermal Activation: Utilizes a sensitive metal fusible link element designed to melt swiftly at specific temperature thresholds upon detecting rapid heat increases.
• Optimized Orifice Performance: Features an 8.0 K-factor (115 metric) to provide precise hydraulic water delivery across diverse commercial system types.
• Upright Deflector Design: Directs water upward before cascading downward, ensuring effective coverage in environments featuring ceiling obstructions, beams, or ducts.
• Durable Industrial Construction: Built from specialized brass alloys to withstand harsh environmental conditions and resist physical damage or vibration in exposed locations.
• Standard System Integration: Equipped with a 3/4" NPT (20 mm) thread size for seamless installation into standard fire protection piping configurations.

Contractors and facility managers must verify local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer specifications prior to system installation.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)