ASTM_F_1271_-_90_2012.pdf

Designation:F127190(Reapproved 2012)An American National StandardStandard Specification forSpill Valves for Use in Marine Tank Liquid OverpressureProtections Applications1This standard is issued under the fixed designation F1271;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.1.Scope1.1 This specification provides the minimum requirementsfor design,construction,performance,and testing of devices toprevent marine tank liquid overpressurization(hereafter calledspill valves).1.2 The spill valves provided in accordance with thisspecification will satisfy Regulation 1I-2/59.1.6 of the 1981and 1983 Amendments to the International Convention for theSafety of Life at Sea,1974(SOLAS),which states:“Provisionshall be made to guard against liquid rising in the ventingsystem to a height which would exceed the design head of thecargo tank.This shall be accomplished by high level alarms oroverflow control systems or other equivalent means,togetherwith gaging devices and cargo tank filling procedures.1.3 The spill valves are not intended for the venting ofvapors or the relief of vapor overpressurization or underpres-surization of marine tanks.1.4 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.5 The following precautionary caveat pertains only to thetest methods portion,Section 8,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray(Fog)ApparatusF722 Specification for Welded Joints for Shipboard PipingSystems2.2 ANSI Standards:3B 2.1 Pipe ThreadsB 16.1 Cast Iron Pipe Flanges and Flanged FittingsB 16.3 Malleable Iron Threaded FittingsB 16.4 Cast Iron Threaded FittingsB 16.5 Steel Pipe Flanges and Flanged FittingsB 16.11 Forged Steel Fittings,Socket-Welding and ThreadedB 16.15 Cast Bronze Threaded FittingsB 16.24 Bronze Pipe Flanges and Flanged FittingsB 31.1 Power Piping2.3 Other Documents:ASME Boiler and Pressure Vessel Code,Section VIII,Division 1,Pressure Vessels;Section IX,Welding andBrazing Qualifications4Safety for Life at Sea Convention,Regulation II-2/59.1.6,Amendments 1981 and 1983346 CFR 153 Ships Carrying Bulk Liquid,Liquified Gas,orCompressed Gas Hazardous Materials53.Terminology3.1 Definitions:3.1.1 spill valvean independent device that automaticallyprevents liquid overpressurization of a tank by relieving liquidat a predetermined pressure set higher than the pressurereached in the tank when the tank vapor relieving deviceoperates at its maximum design venting rate(based on avolumetric vapor volume 1.25 times the maximum designloading rate).4.Ordering Information4.1 Orders for spill valves in accordance with this specifi-cation shall include the following information,as applicable:1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved May 1,2012.Published May 2012.Originallyapproved in 1989.Last previous edition approved in 2006 as F1271 90(2006).DOI:10.1520/F1271-90R12.2For 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 American National Standards Institute,25 W.43rd St.,4thFloor,New York,NY 10036.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.5Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.1 Nominal pipe size and end connections,4.1.2 Product(s)in tank being protected by the spill valve,4.1.3 Inspection and tests other than specified by thisspecification,4.1.4 Required relieving pressure at maximum tank loadingflow rate,4.1.5 Set(opening)pressure,4.1.6 Maximum tank design loading flow rate,4.1.7 Inlet pressure drop resulting from the maximum tankdesign loading flow rate,4.1.8 Back pressure of the spill valve discharge lines result-ing from maximum tank design loading flow rate,4.1.9 Purchasers inspection requirements(see 9.1),4.1.10 Installation inclinations in excess of 212(see 6.6),4.1.11 Purchasers sp