Rapidrop -1/2” (15mm) Pendent and Upright Sprinklers (4.17)

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RD022 / RD023 Standard / Quick Response Pendent and RD026 / RD027 Standard / Quick Response Upright are frangible glass bulb automatic sprinklers. They are standard orifice fire sprinklers for use in fire sprinkler systems designed in accordance with standard installation rules recognised by the applicable Listing or Approval agency. (e.g. UL Listing is based on NFPA 13 requirements). These sprinklers all produce a hemispherical water distribution pattern below the deflector.

 

In a fire condition the heat causes the fluid in the glass bulb to expand which shatters the glass and releases the spring seal assembly. Water flows from the orifice onto the sprinkler deflector which diffuses the water into a uniform spray pattern which extinguishes or controls the fire.

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