Viking Freedom Concealed Pendent Fire Sprinkler | VK494 | Residential | 4.9K | 155F | 20759AB
Viking VK494 Residential Fast Response Concealed Pendent Fire Sprinkler activates at 155F (68C) to defend residential occupancies against fire. This UL listed fire sprinkler features a 4.9K orifice and a 1/2 in. (12.7 mm) NPT connection.
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Viking VK494 Residential Fast Response Concealed Pendent Fire Sprinkler delivers decorative, competitively priced defense against fire in residential occupancies such as homes and apartments. Using a heat-activated glass bulb, this automatic fire sprinkler opens when ambient temperatures reach 155F (68C), reducing the likelihood of flashover and facilitating safe evacuation. Designed for residential applications, the 4.9K orifice makes efficient use of available water supplies in smaller sprinkler systems.
The included low-profile cover plate mounts flush to nearby walls and is available in a custom finish by special order or in one nine standard finishes, including: white, ivory, black, antique brass, brushed brass, brushed chrome, bright brass, polished chrome, or brushed copper. When temperatures near the ceiling reach 135F (57C), the soldered cover plate detaches, exposing the head of the Viking VK494 concealed pendent fire sprinkler, which activates when temperatures reach 155F (68C).
The Viking Model VK494 has a 4.9 K-Factor and installs with 1/2 in. (12.7 mm) National Pipe Thread (NPT), used in fire sprinkler systems throughout the United States. This Residential Fast Response Fire Sprinkler features a brass frame, a phosphor bronze deflector, and a copper/brass or stainless-steel cover plate. This sprinkler features a “push-on, thread-off” cover plate design, provides up to 1/2 in. (13 mm) of vertical adjustment, and the cover assembly easily removes to p.
To order the Viking VK494 with custom cover plates, contact us at 888.361.6662 or fill out our contact form.
With a maximum working pressure of 175 PSI (12.1 BAR), this pendent sprinkler hangs from above-ceiling piping behind a decorative cover plate and may be installed and used in accordance with NFPA 13, NFPA 13R, NFPA 13D and local fire code. Each Model VK494 sprinkler is made by Viking, a global leader in fire protection manufacturing for nearly 100 years.
This product is UL-listed, and appropriate for use in fire protection systems when accepted by the authority having jurisdiction.