AS 2419.4:2021 Fire hydrant installations Part 4: Storz fittings for firefighting purposes. 1.4.8 distortion any visible permanent deformation of a fitting, including any of its components 1.4.9 dust cap fitting used to close the open end of a hose coupling or other fitting to prevent ingress of dust and debris Note 1 to entry: Does not create a closed (sealed) water system. 1.4.10 fire brigade statutory authority constituted under an Act of parliament having as one of its functions, the protection of life and property from fire and other emergencies Note 1 to entry: Fire brigades are also known as a fire service or fire authority. 1.4.11 fire brigade booster fitting that enables the fire brigade to pressurize or pump water into a fire hydrant system or fire sprinkler system Note 1 to entry: For information on fire brigade boosters, refer to AS 2419.3. 1.4.12 fire hydrant valve fitting installed in a fire hydrant system main with a single valved outlet or two valved outlets for the connection of fire hose(s) Note 1 to entry: For information on fire hydrant valves, refer to AS 2419.2. 1.4.13 fitting smaller part for attachment to a greater assembly, hypernym encompassing couplings, adaptors, reducers, blanking and dust caps 1.4.14 interconnection torque torque, or rotational force, that is required to connect one Storz connection to another having the same gasket type 1.4.15 may indicates an option 1.4.16 nominal diameter DN alphanumeric designation of diameter for components of a pipeline, which is used for reference purposes Note 1 to entry: The nominal size comprises the letters DN (Diameter Nominal) followed by a whole number. 1.4.17 nominal pressure PN alphanumeric designation of pressure classification based on the rated working pressure, expressed in hundreds of kilopascals, which is used for reference purposes Note 1 to entry: The nominal pressure comprises the letters PN (Pression Nominal) followed by a whole number.AS 2419.4 pdf download.
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