Viking VK502-ESFR Dry Pendent Sprinkler K14
Code VK502, Quick Response Style, Downward, Dry Form, Factor K14, Made in Viking-USA, 12 Months Nationwide Warranty,
Viking-VK502 . Spray-Dry Head With a K-factor of 14.0 (202 meters) and a special deflector, this sprinkler produces large, high-momentum water droplets in a hemispherical pattern below the deflector. This allows fire penetration and direct wetting of the burning fuel surface while cooling the atmosphere early in the high challenge flame development. The dry ESFR nozzle includes a flammable element type ESFR nozzle permanently protected for the special supply nozzle. The sprinkler unit has a sealed, slotted or slotted copper inlet. Viking Dry Sprayer VK502 also includes two insulated starter assemblies (optional) to help seal the freeing space around the dry sprinkler. When properly installed, the seal reduces the possibility of air leakage through the hole in the ceiling and thus condensate formation around the sprinkler connection on the system piping. In freezer installations, condensation can lead to ice build-up, which can inhibit sprinkler operation or cause premature sprinkler operation. Dry sprinkler starter is intended to slow down air exchange between the inside and outside of the freezer (or any dry nozzle installation) to help prevent humidity and temperature differences in the area. area around the sprinkler. The rubber seal is designed with a material that will not drip when exposed to flame. This protects the deflector picking up material that would interfere with its water distribution characteristics. Specifications Viking Dry Nozzle VK502 Pipe Diameter: 1-11/16, (43.86 mm) Minimum operating pressure: Refer to NFPA 13 or FM 8-9 Loss Prevention Data Sheet. Maximum working pressure: 175 psi (12 bar). Factory hydrostatically tested to 500 psi (34.5 bar). Connection: 2 slotted slots (refer to Figures 2 and 3) or 1-1/2, NPT or BSP Threaded (refer to Figures 4 and 5) K-factor : 14.0 US (202 figures
) The K-factor measurement shown is when the pressure is measured in bars. When the pressure is measured in kPa, divide the K-factor by the factor displayed by 10.0.Deflector Diameter: 1-13 / 32, (35.7 mm) Overall Length: 18-5/8, (473 mm), 24-5/8. (625 mm), 30-5/8 (778 mm), 36-5/8' (930 mm) Covered by the following US Patent numbers: US7,766,252; US$2,636,075; US$ 9,522,292 The picture describes how to use and install the Viking Dry Nozzle VK502 You can know more information about other nozzles distributed by Dong Nam Company in Vietnam market ere
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