Web27 Jun 2024 · The occupancy hazard classification is a critical factor when designing an automatic sprinkler system. If the fire hazard is underestimated, the resulting sprinkler system will be undersized for the fires that may occur. ... The calculation uses the formula for water flow through an orifice, based on the pressure inside the pipe: Q (flow) = 29. ... WebCommercial R iser PACK floor control assemblies are configured to meet NFPA 13 requirements for wet fire sprinkler systems. Available with or without pressure relief. ... Orifice Size: 3/8" 7/16" 1/2" 17/32" 5/8" 3/4" K 25.2: ... Thread x Groove Groove x Groove: Thread x Thread Thread x Groove Groove x Groove: Groove x Groove: Groove x Groove ...
Impact of Sprinkler K-Factor and Operating Pressure on Sprinkler …
WebK factor: 80 (5.6) Standard Orifice Size: 15mm (½”) Standard Thread Size: ½” NPT: Response: Standard Response: Bulb: 5mm: Maximum Working Pressure: 12.1 bar (175 psi) Finish: Brass, Chrome and White paint finish. … WebAs the sprinkler orifice size increases, so does the K-factor; the larger the K-factor, the larger the orifice and the larger the flow. It takes less pressure to push the same amount of water through a larger orifice. Traditional sprinklers typically had an orifice size of ½" or 5.6. severson construction hayfield mn
Bulletin 014 Rev. D Model F1FR Series Quick Response Standard …
WebK factor 5.6 Remember: you need 1/2 in. Sprinkler Orifice. Number of sprinkler = Ap/As 47 sprinkler. Flow rate per sprinkler(Qs)= D * As 30 gpm . P residual = 28.699 psi. Pipe material Black steel (wet systems including deluge) ... (in) Nominal Pipe Size Thickness (in) External Internal. 6 in. 8 in. 10 in. 12 in. 1/2 in. 0.84 0.62 0.11 ... Web11) Every five years, all sprinklers should be visually examined and representative samples removed and tested to the requirements of the authority and/or insurer. 12) Approved with polished chrome and white polyester finishes. 13) This ESFR sprinkler has a k-factor of 362.9 l.min-1.bar -/2 (US k-factor of 25.2 gal.min-1.psi-/2). Websoftware uses the following guide: ANSI/ISA-75,01.01-2002 - Flow Equations for Sizing Control Valves. For predicting all physical properties of water we use the IFC-97 formulations developed by the International Association for the Properties of Water and Steam. For calculation of liquid or gas flow pressure losses across orifice plates we use the severson law