VK449 Residential Dry Horizontal Sidewall Sprinkler 4" Freeze Resistant

The Viking VK449 Residential Dry Horizontal Sidewall Sprinkler provides dedicated fire suppression for residential spaces vulnerable to freezing conditions. Designed for installation in dry pipe sprinkler systems, this component prevents water from sitting in the active piping until the system activates, effectively eliminating pipe-freeze risks and subsequent water damage in unheated areas like garages and exterior corridors.

Engineered in compliance with NFPA 13D standards for residential fire sprinkler systems, the VK449 satisfies strict national fire safety codes for reliable activation and suppression. This model is UL Listed and FM Approved to ensure verified third-party quality and compliance for commercial trade installations.

Key Features & Construction

• Dry Barrel Design: Limits water presence within the piping until thermal activation, preventing pipe bursts in low-temperature environments.
• Horizontal Sidewall Orientation: Directs discharge for optimal coverage in corridors, garages, and smaller residential rooms.
• Durable Construction: Built with robust materials designed to withstand harsh residential environments and low-temperature conditions.
• Custom Length Availability: Offered in multiple extension lengths including 4", 6", 12", 18", and 24" options to match exact wall thicknesses.
• Finish & Temperature Options: Available in chrome and white finishes with specific temperature ratings of 155°F and 200°F.

Technical Specifications & Compliance Table

Contractors must verify local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer technical data sheets before beginning installation. Note that custom dry length units are non-cancellable and non-refundable.

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