Step 2 - Use only a non-hardening pipe joint compound or tape seal. RFII-MRI Non-Magnetic Model Concealed Pendent Sprinkler Quick & Standard Response, Standard Coverage, K-factor=5.6 ILLUSION Extra Large Orifice Concealed Pendent Sprinklers Quick Response, Standard Coverage, K-factor=11.2 Model RFII Model RFII 5.6 K-factor Horizontal Sidewall Flat Plate Concealed Sprinklers Quick Response, Standard Coverage There is no hard and fast rule on the distance. NFPA13 D Section 8.2.5.1.1 Pendent sprinklers shall be located at least 3 ft away from obstructions such as ceiling fans and light fixtures. * * Most sprinkler heads will be installed 1″ from the ceiling. Step 4 - For Upright and Pendent Sprinklers, use a standard wrench. Model JL14 Sprinkler Components and Dimensions Figure 1 ... Sprinkler Distance to Ceiling See NFPA 13 See FM Global 2-0 Open Frame, Single, Double, Multiple Row, or Portable Rack Storage of Class I … Placing the sprinkler too low from the ceiling puts the sprinkler head out of the range of the accumulating heat and lessens its ability to sense danger. It depends on the type sprinkler head. Sprinkler heads are referred to simply as sprinklers ... for example minimum distance between sprinklers on slopped ceilings ... (pressure and flow must satisfy the relation flow rate = k factor X square root of the pressure • Pendent sprinklers within 1” to 4” below ceiling (unless different in listing) That is an urban legend according to a few sprinkler inspectors I've spoken to. the Upright Sprinklers, and in the Pendent position for the Pendent Sprinkler, Pendent Recessed Sprinkler. The residential code says pendant sprinklers must be at least 3 ft from obstructions such as ceiling fans and lights (as measured from their centers), or you can use this table which relates A) the distance from the sprinkler to the near edge of the obstruction and B) height of the sprinkler's deflector above the bottom of the obstruction. Section 8.2.5.1.3 where the sprinkler cannot be located 3 ft away from the obstruction, an additional sprinkler … 8.2.5.2.1 Pendent sprinklers shall be located at least 3 ft (914 mm) away from obstructions such as ceiling fans and light fixtures unless the requirements of 8.2.5.4 are met. Apply only to the male threads. 15’ between sprinkler heads, 7.5’ from walls) Minimum distance between sprinkler heads: usually 6’ Distance from ceilings: minimum 1”, maximum 12”. Pendent Sprinklers 175 psi (12 bar) rated Bulletin 019 December 2020. Step 3 - Hand tighten the sprinkler into fitting. 8.2.5.2 Pendent Sprinklers. NFPA’s technical advisory program, which gives NFPA members an opportunity to ask questions relating to code requirements, receives multiple questions each week on how to locate sprinklers when cloud ceilings are present. The simple scientific fact that heat rises is the basic component of fire safety. The Concealed Pendent Sprinklers all produce a hemispherical water distribution pattern below the deflector. Sprinkler placement is scientific as well as strategic. 8.2.5.2.2 The distance shall be measured from the center of the sprinkler to the center of the obstruction. SPRINKLER HEAD CONCEALED PENDENT TYPE NV007 / NV008 ... ceiling or application of the finish coating to a fixed ceiling. Distance from walls: half the distance between sprinkler heads (i.e. Find the listing on the sprinkler head, and it should have the distance requirements available. 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