Chapter 13 Fire Hose Vocabulary Flashcards
Fire Department Connection (FDC)
Point at which the fire department can connect into a sprinkler or standpipe system to boost the water flow in the system. This connection consists of a clappered siamese with two or more 21/2 inch intakes or one large-diameter ( 4-inch larger).
Soft Intake Hose
Large diameter, collapsible piece of hose used to connect a fire pump to a pressurized water supply source ; sometimes referred to as soft sleeve hose.
Hard Intake Hose
A flexible rubber hose reinforced with a steel core to prevent collapse from atmospheric pressure when drafting; connected between the intake of a fire pump and a water supply and must be used when drafting. Also called hard suction hose
Threaded Coupling
Male or female coupling with a spiral thread
Nonthreaded Coupling
Coupling with no distinct male or female components. Also called Storz Coupling or sexless coupling.
Shank
Portion of a coupling that serves as a point of attachment to the hose
Higbee Cut
Special cut at the beginning of the thread on a hose coupling that provides positive identification of the first threat to eliminate cross-threading.
Higbee Indicators
Notches or grooves cut into coupling lugs to identify by touch or sight the exact location of the Higbee Cut
Storz Coupling
Nonthreaded (sexless) coupling commonly found on large-diameter hose.
Wye
Hose appliance with one female inlet and two or more male outlets, usually smaller than the inlet. Outlets are also usually gated.
Siamese
Hose appliance used to combine two or more hoselines into one. The siamese generally has female inlets and a male outlet and is commonly used to supply the hose leading to a ladder pipe.
Water Thief
Any of a variety of hose appliances with one female inlet for 21/2-inch or larger hose and with three gated outlets, usually two 11/2 inch outlets and one 21/2-inch outlet.
Adapter
Fitting for connecting hose couplings with dissimilar threads but with the same inside diameter.
Fitting
Device that facilitates the connection of hoselines of different sizes to provide an uninterrupted flow of extinguishing agent
Reducer
Adapter used to attach a smaller hose to a larger hose. The female end has the larger threads, while the male end has the smaller threads.