BPN model monitor nozzles are produced by C.S.I. S.r.l., for cases where the discharge pattern needs to be changed according to the application, from a narrow solid jet to a wide almost fog stream up to 120° spray angle. While BPN nozzles are used to deliver thrown liquid to distant burning objects, the adjustable pattern of the nozzle enables to cover closer hazards from the same point by simply adjusting the discharge pattern. Standard BPN model ﬁxed gallonage monitor nozzles are calibrated to the requested ﬂow rate in the factory prior to shipment. BPN nozzles are compatible to be used with ﬁlm forming foam solutions, where air aspiration is not needed. BPN model nozzles oﬀer ﬂow rates up to 30.000 l/min and discharge pattern regulations are made manually.