Tyco® TY3030, Pilot Sprinkler Model FTR-1 Fixed Temperature Release for Deluge And Preaction Systems Wet or Dry Pilot Release Service, 1/2” NPT, 155 Degree, 5.6K, QR, Natural Brass, 51-041-1-155 5213N20W Figure 1) are automatic sprinklers

Figure 1) are automatic sprinklers of the frangible bulb type

Open back box

Replacement delay mechanism and switch assembly for WFDN Series waterflow detectors

NIBBCO brand 1 in

Exit portion uses red or green LEDs

Tyco® TY3030, Pilot Sprinkler Model FTR-1 Fixed Temperature Release for Deluge And Preaction Systems Wet or Dry Pilot Release Service, 1/2” NPT, 155 Degree, 5.6K, QR, Natural Brass, 51-041-1-155 5213N20W Figure 1) are automatic sprinklersThe TYCO Model FTR 1 Fixed Temperature Release is a fixed temperature, heat detector intended for wet or dry pilot release service. It can be used for pilot line service, instead of standard sprinklers, to activate deluge and preaction systems equipped with either wet or dry pilot line detection. Item: Tyco TY3030, Pilot Sprinkler Model FTR 1 Fixed Temperature Release for Deluge And Preaction Systems Wet or Dry Pilot Release Service, 1 2 NPT, 155