ASTM_F_1546_-_96_2012e1.pdf

Designation:F154696(Reapproved 2012)1An American National StandardStandard Specification forFire Hose Nozzles1This standard is issued under the fixed designation F1546;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEDesignation was editorially changed to conform with units of measurement statement in November 2013.1.Scope1.1 This specification covers the design,manufacture,andtesting of fire hose nozzles intended for use with sea water orfresh water either in straight stream or adjustable spraypatterns.1.2 The values stated in SI units are to be regarded as thestandard.2.Referenced Documents2.1 ASTM Standards:2A313/A313M Specification for Stainless Steel Spring WireA580/A580M Specification for Stainless Steel WireA582/A582M Specification for Free-Machining StainlessSteel BarsB117 Practice for Operating Salt Spray(Fog)ApparatusD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD572 Test Method for RubberDeterioration by Heat andOxygenD1193 Specification for Reagent Water2.2 NFPA Standards:3NFPA 1963 Standards for Screw Threads and Gaskets forFire Hose Connections3.Terminology3.1 Definitions:3.1.1 ball shut-offa spray nozzle configuration that stopsthe flow of water through the nozzle by rotating the ballthrough which the water flows so that the passage no longeraligns with the nozzle flow passage.3.1.2 break aparta feature that allows the nozzle tip to bedisconnected from the nozzle body by virtue of a couplingidentical to that on the hose end of the nozzle.3.1.3 constant flow rate spray nozzlean adjustable patternnozzle in which the flow is delivered at a designed nozzlepressure.At the rated pressure,the nozzle will deliver aconstant flow rate from straight stream through a wide anglepattern.This is accomplished by maintaining a constant orificesize during flow pattern adjustment.3.1.4 constant pressure(automatic)spray nozzlean ad-justable pattern nozzle in which the pressure remains constantthrough a range of flows rates.The constant pressure providesthe velocity for an effective stream reach at various flow rates.This is accomplished by means of a pressure-activated,self-adjusting orifice baffle.3.1.5 constant/select flow rate featurea nozzle feature thatallows on-site adjustment of the orifice to change the flow rateto a predetermined value.The flow rate remains constantthroughout the range of pattern selection from straight streamto wide angle spray.3.1.6 free swivel couplinga coupling between the nozzleand hose or between halves of a break-apart nozzle that iscapable of being turned readily by hand;that is,a spannerwrench is not required to tighten the coupling to preventleakage.3.1.7 flusha feature in a nozzle that allows the orifice to beopened so that small debris that might otherwise be trapped inthe nozzle,causing pattern disruptions and flow variation,canpass through.When the flush feature is engaged,the nozzlepressure will drop and the pattern will deteriorate.3.1.8 lever-type controla control in which the handleoperates along the axis of the nozzle.3.1.9 pistol gripa feature usually available as an attach-ment that allows a nozzle to be held like a pistol.3.1.10 rated pressurethat pressure for which the nozzle isdesigned to operate at a specified flow rate(s).3.1.11 rotational-type controla control that rotates in aplane perpendicular to the axis of the nozzle.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.07 onGeneral Requirements.Current edition approved May 1,2012.Published May 2012.Originallyapproved in 1994.Last previous edition approved in 2006 as F1546/F1546M 96(2006).DOI:10.1520/F1546-96R12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Classification4.1 Marine fire hose nozzles may be classified into fourgeneral construction types,as follows:4.1.1 Type IPistol grip,lever-type control operated.4.1.2 Type IINonpistol grip,lever-type control operated.4.1.3 Type IIIBreak apart,pistol grip,lever-type controloperated.4.1.4 Type IVBreak apart,nonpistol grip,lever-type con-trol operated.4.2 Nozzle types may be subdivided into three generalclasses,as follows:4.2.1 Class IConstant flow rate.4.2.2 Class IIConstant/select flow rate.4.2.3 Class IIIConstant pressur