Overview
The Viking™ VK792 C-1 Window Sprinkler (Part Number 01322BA) is a dependable, open-type sprinkler designed for deluge fire protection systems. It provides a protective water curtain for windows, walls, and roofs that may be exposed to fire or high heat from nearby structures or equipment. When the system activates, the sprinkler releases a wide fan of water that helps block flames, absorb heat, and reduce the chance of fire spreading through glass or open wall areas.
Built from solid brass for strength and corrosion resistance, the VK792 is made to perform in both industrial and commercial environments. Its 1/2-inch NPT connection and 3/8-inch orifice provide a 3.0K discharge rating, delivering a strong and steady flow of water for wide-area coverage. This makes it an excellent choice for larger openings or areas needing higher water output than smaller orifice models can provide.
Product Overview
The VK792 C-1 Window Sprinkler produces a 180-degree fan-shaped spray pattern that spreads evenly across the face of a window or wall. This water curtain acts as a heat shield, helping to keep glass intact and prevent flames or radiant heat from entering the building. The sprinkler performs effectively with as little as 7 psi of pressure and can operate safely up to 175 psi, offering flexibility for a wide range of system designs.
The brass body and deflector are precision-engineered to create a consistent, even spray pattern across the entire protected area. When installed in a deluge system, multiple VK792 sprinklers are typically spaced along a wall or window so their sprays overlap slightly. This ensures complete coverage and creates a continuous sheet of water that protects exposed surfaces from heat and flame.
With its larger orifice size and higher flow capacity, the VK792 provides excellent performance for applications such as industrial buildings, manufacturing facilities, and power plants where exposure to radiant heat is a concern. It’s also used in tunnels, storage areas, and other spaces requiring reliable fire barrier protection.
Listings and Approvals
The Viking™ VK792 C-1 Window Sprinkler is UL Listed and FM Approved for use in fixed fire protection systems. These approvals verify that the sprinkler meets rigorous standards for performance, safety, and reliability. It has been tested for water distribution, pressure strength, and corrosion resistance to ensure dependable operation in demanding fire protection environments.
The sprinkler must be installed and used according to Viking’s published technical data and all applicable codes. Following these guidelines ensures that the VK792 performs properly and delivers the intended spray pattern when the system activates.
Installation and Maintenance
The VK792 should be installed exactly as shown in the system design drawings, with the deflector positioned to direct water across the full width of the window or wall being protected. Use only the manufacturer’s approved wrench to install the sprinkler, and tighten it to the correct torque to prevent damage or leakage. During construction, make sure the sprinkler’s waterway stays clean and free of debris. Remove any covers or protective caps before system testing.
Regular inspection and maintenance are important to keep the sprinkler in good working condition. Inspectors should check that the deflector and orifice are clear, the alignment is correct, and no corrosion, dirt, or paint has built up on the sprinkler. Any sprinkler that is damaged, blocked, or corroded should be replaced immediately to maintain full protection.
With its rugged brass construction, 180-degree fan-shaped spray, and dependable performance, the Viking™ VK792 C-1 Window Sprinkler offers proven protection for buildings that need strong water coverage during fire exposure. It is a trusted choice for fire protection engineers and installers who need a reliable, high-flow sprinkler for deluge system applications.
