A variety of different nozzle types are flow tested and shown are the implications that may arise. In Part 1 they went into detail about the historical evolution of gated wye operations and their use with legacy flows.
Daryl Liggins is a 26 year veteran of the fire service. He currently holds the rank of Captain with the Oakland, CA fire dept. He previously served as a firefighter/engineer with the Redwood City, CA Fire Department. He has served as a hands on training instructor for engine company operations at many conferences including Fire Engineering’s FDIC, Firehouse Expo, Boise firefighter symposium, County fire tactics High rise operations conference and other various hands on training courses. He instructs engine company operations for the Oakland fire department fire academies and is the chair of Oakland fire departments hose and nozzle committee and has played a key role reshaping some basic engine operations and standpipe operations for the department. He currently sits on the board of directors for fire nuggets a non-profit training and magazine group by firefighters for firefighters.
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Break-Apart nozzles can give you the best of both worlds having both a smooth bore and a fog nozzle in one, but there are some critical points that need to be known in building the appropriate break-apart combination.
Dave McGrail discusses the implications of using automatic nozzles for standpipe operations.
Jerry Herbst goes into detail on the best practice applications for automatic handline nozzles in this Select-O-Matic XD product overview video
In this episode Dave McGrail goes into detail of what NFPA 14 (Standard for the Installation of Standpipe and Hose Systems) pre-93 and post-93 means in regard to expected outlet pressures and how those pressures can affect target fire flows comparing 1-3/4” and 2-1/2” hose.
