Series 751 FireLock alarm check valve prevents the reverse flow of water from the system piping to the water supply. The valve is trimmed with a water bypass line, which allows pressure surges without the alarm check valve’s clapper lifting and triggering false alarms.
- Prevents the reverse flow of water from the systems piping to the water supply
- Sizes from 1½ – 8″ | 40 – 200 mm
- Pressures up to 300 psi | 2068 kPa | 21 bar