Pressure switch (Pressure alarm switch)
- Certificate: UL Listed / FM Approved
- Standard: UL 753 / FM 3132, comply to NFPA 13, 13D, 13R, 72
- Connection: 1/2″ NPT male
- Temperature: -40°C to 60°C
- Operating pres.: 300 / 250 psi
- Enclosure: IP66
- Surface: Corrosion resistant finish
Pressure switch is used in wet, dry, or other fire sprinkler system to detect an pressure increase or decrease from normal system pressure, so to transmit the signal automatically to local alarm system and fire pump control cabinet.