1、Designation:F129890(Reapproved 2012)An American National StandardStandard Specification forFlexible,Expansion-Type Ball Joints for MarineApplications1This standard is issued under the fixed designation F1298;the number immediately following the designation indicates the year oforiginal adoption or,i
2、n 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 covers the design,manufacture,andtesting of ball joints utilized for
3、accommodating thermalexpansion and contraction,or mechanical movement of apipeline carrying fluid.The ball joints are intended for use insystems operating above 0F(18C).1.2 The following precautionary caveat pertains only to thetest methods portion,Section 7,of this specification:Thisstandard does n
4、ot 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:2A
5、395/A395M SpecificationforFerriticDuctileIronPressure-Retaining Castings for Use at Elevated Tempera-turesF722 Specification for Welded Joints for Shipboard PipingSystems2.2 ANSI Standard:B 31.1 Power Piping32.3 American Society of Mechanical Engineers:4ASME Boiler and Pressure Vessel Code,Section V
6、III,Division 1,Pressure Vessels Section IX,Welding andBrazing Requirements3.Ordering Information3.1 Each purchase order or inquiry for ball joints to thisspecification shall include the following as applicable:3.1.1 Title,number,and latest revision of this specification,3.1.2 Manufacturers part numb
7、er or ball-joint type infor-mation,3.1.3 Materials for ball joint and seals,if other than to thisspecification,3.1.4 Service conditions,3.1.4.1 Minimum and maximum operating temperature(F),3.1.4.2 Maximum operating pressure(psig),3.1.5 Fluid media(internal),3.1.6 Atmosphere or media(external),3.1.7
8、ANSI pressure class,facing and drilling of flangedends,and pipe schedule or wall thickness of ends for weld endjoints,3.1.8 Special end connections as defined by the purchaser,3.1.9 Ball sphere or other special coatings,if required,3.1.10 Qualification test report,if required,3.1.11 Drawing requirem
9、ents;for example,envelope draw-ing sufficiently detailed to describe the ball joint to be supplied,and3.1.12 Other tests to satisfy customer requirements.4.Materials and Manufacture4.1 All pressure retaining components shall be fabricatedfrom wrought or cast steel.Ductile iron complying withSpecific
10、ation A395/A395M may be used for the ball jointretaining ring in services not above 350 psig(2.41 N/mm2)or450F(232C).Steel shall comply with one of the materialslisted in Section VIII,Division 1,of the ASME Code,or ANSIB 31.1.4.2 Bolting material shall be in accordance with ANSIB 31.1.4.3 Ball spher
11、es shall be coated in accordance with themanufacturers standard practice or as specified by the custom-ers specification(see 3.1.9).4.4 Corrosion shall be considered in the design as set forthin UG-25 of the ASME Code,Section VIII,Division 1.1This specification is under the jurisdiction of ASTM Comm
12、ittee 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 1990.Last previous edition approved in 2006 as F1298 90(2006).DOI:10.1520/F1298-90R12.2For refer
13、enced 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(ANSI),25 W.43rd St.,4t
14、h Floor,New York,NY 10036,http:/www.ansi.org.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United S
15、tates1 4.5 Seals and packing material shall be suitable for theservice intended.This includes being adequate for the pressureand temperature rating and having sufficient resistance toattack by the fluid media and atmosphere specified in Section3.4.6 Welding procedure qualification,welder performance
16、qualification,and welding materials shall be in accordancewith ANSI B 31.1 and Section IX of the ASME Code.Brazingor soldering shall not be used.5.Other Requirements5.1 Design:5.1.1 Ball joints shall be designed to conform to applicablesections of the latest edition of ANSI B 31.1.5.1.2 PackingThe design for containment of leakage shallbe of the manufacturers standard design and be qualified byprototype testing of 7.1.5.2 Pressure and Temperature Rating:5.2.1 The maximum allowable working pressu