Fusible Link Sprinkler Head Temperature

Other limits may apply depending on fire loading sprinkler.

Fusible link sprinkler head temperature.

165 f 74 c lt. Brass chrome white polyester black polyester black ptfe and ent. Water is then released. The link holds the pip cap or plug in place.

2 based on nfpa 13. A fusible link sprinkler head has a two part metal element that is fused by a heat sensitive alloy. Fusible link automatic sprinkler. For instance a fusible link rated between 135 f and 170 f has a maximum ambient temperature rating of 100 f.

When the solder melts the levers pull the two piece link apart and fly away from the sprinkler. White polyester black polyester and black ptfe in all temperature ratings ent6 wax coated brass for sprinklers with the following temperature ratings. Pressure in the piping network pushes the cap from the orifice. 8 14 is kept closed by a two piece link held together by a solder with a predetermined melting point.

The fusible link sprinkler fig. Once the ambient temperature around the sprinkler head reaches a specified temperature the alloy releases and the metal elements separate which causes the pip cap to fall away. It s essential to match the temperature rating of the sprinkler to the ordinary and maximum expected ceiling temperatures to avoid accidental discharges.