VK556 K5.6 QR Upright SHD

The Viking VK556 K5.6 QR Upright SHD is an advanced automatic fire sprinkler engineered specifically for commercial and industrial fire suppression assemblies, including challenging high-piled and intermediate warehouse rack storage environments. Designed for upright installation with an integrated water shield—and compatible with approved piping and rack setups—this unit deploys a quick-response glass bulb or fusible element to ensure rapid, consistent thermal activation and targeted fire suppression where asset protection is most critical.

This sprinkler satisfies rigorous life-safety mandates and directly supports regulatory compliance for commercial and industrial facilities. It is engineered to meet or exceed NFPA 13 standards for installation, helping facility managers and trade contractors maintain strict adherence to local building and fire codes.

• Ductile Iron Construction: Built with corrosion-resistant ductile iron to withstand harsh industrial operating conditions and ensure long-term durability.
• Quick-Response Activation: Utilizes a robust glass bulb or fusible element designed for rapid, consistent thermal response during elevated temperature events.
• Rack Storage Optimization: Specialized configuration enhances intermediate in-rack fire suppression efficiency in high-piled inventory warehouses.
• Versatile Deployment: Engineered for upright placement with an integrated shield, while maintaining compatibility with approved pendent frame styles and piping networks.

Contractors and facility managers must verify all local Authority Having Jurisdiction (AHJ) requirements and consult the manufacturer's engineering design manuals prior to system layout and installation.

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