Lockable pressure relief valve
- Certificate: UL Listed / FM Approved
- Standard: NFPA 13
- Material: Bronze body, SS spring and plastic casing
- Connection: Thread, NPT
- W. pressure: 300 psi
Lockable pressure relief valve is used to relieve excess system pressure caused by surges or temperature changes in wet sprinkler systems and downstream of pressure reducing valve.
Available size
Note:
1. For 1/2″, UL listed relief pressure setting is 175 ~ 220 psi, 225 ~ 295 psi and 300 psi; FM approved relief pressure setting is 175 ~ 300 psi.
2. For 3/4″, UL listed relief pressure setting is 175 ~ 220 psi; FM approved relief pressure setting is 175 ~ 300 psi.