Overview
The Viking™ VK796 C-1 Window Sprinkler (Part Number 01326BA) is a high-performance, open-type sprinkler made for use in deluge fire protection systems. It is designed to protect windows, walls, and roofs that are exposed to flames, heat, or radiant energy from nearby fires. When activated, the sprinkler releases a wide, fan-shaped sheet of water that forms a cooling curtain, helping to block radiant heat and prevent fire from spreading through unprotected openings or glass areas.
Built from strong, corrosion-resistant brass, the VK796 combines durability and reliability for use in both industrial and commercial fire protection applications. It features a 3/4-inch NPT connection and a 3/4-inch orifice, producing an 8.1K discharge factor that delivers a large water flow for wide and high-exposure areas. This design makes it ideal for facilities requiring dependable, high-capacity exposure protection.
Product Overview
The VK796 C-1 Window Sprinkler produces a 180-degree fan-shaped spray pattern that distributes water evenly across a window or wall surface. This water curtain cools exposed materials and prevents the spread of flames or heat from one area to another. Its large orifice and high K-factor allow for strong, even water coverage that is well-suited for protecting large windows, exterior walls, or structures facing significant fire exposure.
The sprinkler performs effectively with a minimum operating pressure of 7 psi and a maximum rated pressure of 175 psi. Its precision-engineered deflector ensures that the water is delivered in a consistent, uniform pattern, even under varying system pressures. In most deluge systems, multiple sprinklers are spaced side by side so their sprays overlap, forming a continuous wall of water for full protection against radiant heat and flame impingement.
With its rugged brass construction and high flow capacity, the VK796 is commonly used in industrial plants, warehouses, processing facilities, and other high-risk environments where heat or fire exposure could threaten building openings. It also performs well in outdoor areas such as tunnels, loading bays, and exterior façades that require reliable water curtain protection.
Listings and Approvals
The Viking™ VK796 C-1 Window Sprinkler is UL Listed for use in fixed fire protection systems. This listing verifies that the sprinkler meets recognized standards for performance, safety, and quality. Although not FM Approved, the VK796 is built to the same exacting standards as other sprinklers in the Viking C-1 Window line and is widely accepted for deluge system use where reliable exposure protection is needed.
Each sprinkler undergoes factory testing to ensure consistent flow performance, spray accuracy, and structural integrity. For best results, the sprinkler should be installed and used in accordance with Viking’s published data sheets and applicable local fire codes.
Installation and Maintenance
The VK796 must be installed exactly as shown in the system design drawings to ensure proper operation. The sprinkler’s deflector should face the protected surface, projecting a smooth, even 180-degree fan of water across the window or wall. Use only the manufacturer’s specified wrench to install the sprinkler, applying the correct torque to avoid damage or leaks. Keep the waterway clean during installation and remove any protective covers before testing the system.
After installation, the sprinkler should be inspected regularly as part of the building’s fire protection maintenance program. Check that the deflector and orifice remain free from dirt, paint, or corrosion, and verify that the spray path is unobstructed. Replace any sprinkler that is damaged or corroded immediately. Conduct routine inspections and tests following NFPA 25 or local standards to maintain system readiness and reliability.
With its solid brass body, large 8.1K flow rating, and reliable 180-degree fan spray, the Viking™ VK796 C-1 Window Sprinkler delivers proven protection for large and exposed openings. It’s a trusted choice for deluge systems where powerful, consistent water distribution is essential for limiting heat transfer and controlling fire exposure.
