600 Series Sprinklers

• The Series LF830,LF831, 5.6 K-factor, flat plate concealed pendent
  Sprinklers, standard coverage. Described in this data sheet LF830 is
  standard response, 5mm glass bulb type sprinkler; LF831 is quick
  response, 3mm glass bulb type sprinkler.
• The soldered cover plate drops off the retainer assembly when
  exposed to heat, as from a fire, that has reached the plate’s Listed
  temperature rating exposing the sprinkler above. As heat
  encompasses the glass bulb operating element of the sprinkler,
  the fluid in the bulb expands, compressing the air bubble within the
  bulb. When the air bubble can no longer compress, the fluid
  expansion causes breakage of the glass bulb, resulting in
  release of the water seat assembly, and discharge of water from the
  sprinkler.

The LIFECO Standard and Quick response sprinklers are thermo sensitive glass bulbsprinklers available in different finishes and temperature ratings to meet design requirements. These sprinklers are sidewall standard spray pattern to meet approval agencies requirement. Especially, the Nickel-Chrome plated sprinklers are decorative and attractive, so it is well matched to customer interior decoration. In addition, Nickel-Chrome plating might be utilized to extend the life of copper alloy sprinkler, although it has passed the standard corrosion test.