[PDF] FireLock NXT™ Deluge Valve 30.81 - ess enerji
The unit includes a water supply shutoff valve, the sprinkler system fire protection valve, alarm line pressure switches, air supervisory pressure switches, supervisory pump switches, and digital pressure gauges that are easily viewed ... is intended for use in a foam system, black trim must be ordered, per NFPA requirements.
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essenerji's website is essenerji.com.tr