Overview
The Viking™ VK794 C-1 Window Sprinkler (Part Number 01324BF) is an open-type sprinkler designed for deluge fire protection systems. It provides dependable protection for windows, walls, and roofs that are exposed to heat or flames from nearby fires. When activated, the sprinkler produces a wide, fan-shaped sheet of water that forms a protective curtain, helping to block radiant heat and prevent fire from spreading through unprotected openings.
Constructed from strong brass and finished with a durable chrome coating, the VK794 combines corrosion resistance with a clean, polished appearance. It connects using a 1/2-inch NPT thread and features a 1/2-inch orifice that delivers a 5.8K discharge factor. This higher water flow makes it ideal for large or high-exposure areas where wider coverage and stronger heat control are required.
Product Overview
The VK794 C-1 Window Sprinkler produces a 180-degree fan-shaped spray pattern that evenly distributes water along a window, wall, or roof surface. This water curtain cools hot surfaces and blocks flames and radiant heat, protecting people and property behind the glass or wall. The sprinkler performs reliably with as little as 7 psi of pressure and can operate safely at up to 175 psi, allowing for consistent performance across a wide range of system conditions.
The precision-machined brass body and deflector provide a stable and uniform spray that maintains full coverage even under varying pressures. When used in a deluge system, multiple VK794 sprinklers are usually installed in a row, overlapping slightly to create an unbroken wall of water. This continuous flow helps slow the spread of flames and reduces radiant heat exposure to surrounding structures or equipment.
The polished chrome finish makes the VK794 ideal for installations where appearance matters, such as building exteriors, atriums, or public spaces. At the same time, its rugged brass construction ensures long-lasting performance in industrial and commercial applications where durability and corrosion resistance are critical.
Listings and Approvals
The Viking™ VK794 C-1 Window Sprinkler is UL Listed for use in fixed fire protection systems. This certification confirms that the sprinkler meets key performance and safety standards, including reliable operation at rated pressures and consistent water distribution. Although not FM Approved, the VK794 offers the same proven design and dependable performance as other models in Viking’s C-1 Window Sprinkler line.
The sprinkler should always be installed and used in accordance with the manufacturer’s technical documentation and the requirements of local fire protection codes. Proper design and installation ensure the sprinkler performs as intended, providing effective coverage during a fire emergency.
Installation and Maintenance
The VK794 must be installed in the correct position and orientation to achieve its full performance. The sprinkler’s deflector should face the surface being protected, projecting a smooth 180-degree fan pattern across the window or wall. Use only the manufacturer’s approved wrench to install the sprinkler, tightening it to the specified torque to prevent leaks or thread damage. During installation, the sprinkler’s waterway must be kept free of debris, and all protective caps should be removed before testing the system.
Once installed, the sprinkler should be inspected regularly as part of a routine maintenance program. Check for corrosion, dirt, or paint buildup, and make sure the deflector and openings are not blocked. Verify that the sprinkler remains properly aligned and that no obstructions interfere with the spray pattern. Any damaged or corroded sprinkler should be replaced immediately to maintain reliable operation.
With its high 5.8K discharge factor, chrome-plated brass construction, and even 180-degree spray, the Viking™ VK794 C-1 Window Sprinkler delivers both performance and appearance. It’s a trusted choice for deluge systems that need dependable water coverage for large or exposed openings, ensuring consistent fire protection in critical applications.
