Can preaction system with DV-5 Deluge Valve Double Interlock be connectet directly to the feeding pipie of under ceiling instalation ( DN 150 pipie) or it shall have individual connection to the mains?
The preation system is intend to be ca. 3700l/min (EH1 12,2 mm/min, 232m2), protected area is c.a 350m2.
Can I consider this case as:
NFPA 13(2019) 8.1.3 Auxiliary Systems. A wet pipe system shall be permitted to supply an auxiliary dry pipe, preaction, or deluge system, provided the water supply is adequate. ?