Overview
The Viking™ VK793 C-1 Window Sprinkler (Part Number 01323BF) is an open-type sprinkler built for deluge fire protection systems. It’s designed to protect windows, walls, and roofs that may be exposed to heat or flames from nearby fires. When the system activates, the sprinkler produces a wide, fan-shaped spray of water that forms a curtain, helping to block radiant heat and prevent flames from spreading through glass or other openings.
Constructed from tough brass with a bright, corrosion-resistant chrome finish, the VK793 combines durability with a clean, polished look suitable for both industrial and architectural settings. Its 1/2-inch NPT connection and 7/16-inch orifice provide a 4.3K discharge factor, delivering strong, even water flow to cover large or high-risk exposure areas.
Product Overview
The VK793 C-1 Window Sprinkler produces a 180-degree fan-shaped spray pattern that evenly spreads water across a window, wall, or façade. This water curtain acts as a shield that cools surfaces and blocks radiant heat, helping to keep glass intact and prevent fire from passing through the opening. With its larger orifice and higher flow rate, the VK793 provides stronger coverage than smaller sprinklers, making it ideal for protecting wide glass areas or structures exposed to significant heat.
The sprinkler performs dependably with as little as 7 psi of pressure and can operate safely up to 175 psi. Its solid brass body and precision-engineered deflector ensure consistent spray formation across the entire coverage area. In typical installations, multiple VK793 sprinklers are placed side by side along a window or wall so their sprays overlap, forming a continuous barrier of water for full protection.
The polished chrome finish not only provides corrosion resistance but also gives the sprinkler a professional appearance suitable for installations where the device is visible—such as building exteriors, terminals, and public areas. Its performance and durability make it a dependable choice for commercial, industrial, and institutional projects that require reliable exposure protection.
Listings and Approvals
The Viking™ VK793 C-1 Window Sprinkler is UL Listed and FM Approved for use in fixed fire protection systems. These certifications confirm that the sprinkler has passed rigorous testing for flow performance, spray uniformity, and strength. It meets the strict requirements for open sprinklers used in deluge systems and has been verified for safe operation at its rated pressures.
Installation and use of the VK793 must follow the manufacturer’s published data sheets and all applicable fire protection codes. Following these guidelines ensures that the sprinkler delivers consistent performance and effective protection when activated during a fire event.
Installation and Maintenance
The VK793 should be installed according to approved system design drawings, with the deflector positioned to direct the 180-degree spray evenly across the window or wall surface. Use the manufacturer’s specified wrench to install the sprinkler, applying the recommended torque to prevent leaks or thread damage. During construction, the sprinkler’s waterway must be kept free from dust and debris, and all protective caps should be removed before the system is tested.
Regular inspections help ensure that the sprinkler continues to operate as intended. Check that the deflector and openings are free from corrosion, dirt, or paint buildup, and make sure no obstructions block the spray pattern. If any sprinkler is damaged, misaligned, or shows signs of corrosion, it should be replaced immediately to maintain system reliability.
With its sturdy brass construction, high 4.3K water flow, and polished chrome finish, the Viking™ VK793 C-1 Window Sprinkler delivers both strength and appearance in one dependable package. It’s an excellent choice for protecting large windows, walls, and other exposed building elements in deluge fire protection systems where reliable, even water coverage is critical.
