Abstract
This specification covers the design, manufacture, and testing of ball joints utilized for accommodating thermal expansion and contraction, or mechanical movement of a pipeline carrying fluid. Ball joints shall be designed to conform to the requirements prescribed. Flex cycle test, thermal cycling test, and hydrostatic test shall be performed to meet the requirements prescribed.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers the design, manufacture, and testing of ball joints utilized for accommodating thermal expansion and contraction, or mechanical movement of a pipeline carrying fluid. The ball joints are intended for use in systems operating above 0°F (18°C).
1.2 The following precautionary caveat pertains only to the test methods portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A395/A395M Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures
F722 Specification for Welded Joints for Shipboard Piping Systems
ANSI Standard
B31.1 Power Piping
American Society of Mechanical Engineers
ASMEBoilerandPressur Vessels Section IX, Welding and Brazing Requirements
Keywords
ball joints; marine pipeline; marine technology; ships; thermal contraction; thermal expansion; Ball joints; Ductile iron castings--specifications; Marine systems/subsystems/equipment--specifications; Pressure testing--marine (shipbuilding) applications; Shipbuilding steel pipe materials--specifications
ICS Code
ICS Number Code 47.020.05 (Materials and components for shipbuilding)
DOI: 10.1520/F1298-90R12
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