Flow switch For fire sprinkler wet riser systems Model FSFD, with field adjustable time retard
Applications
- Detecting waterflow between 4-10 GPM and more, with a pneumatic time retard which delays the output signal for a predefined time in wet sprinkler straight riser systems. It sends an alarm signal to the panel upon sprinkler activation for that particular fire zone in a building.
Special features
- Field adjustable time retard mechanism avoiding false alarm upon water surges
- Tamper resistant cover preventing unauthorised access of switch point setting
- Directional cover permits fail proof installation on field
- IP 54/NEMA 4 rating fits the instrument for indoor and outdoor use
- Two sets of microswitches activates both control panel and local hooters
- Two conduit openings permits trouble free connections with terminal blocks