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ASTM F2934-12

Current Revision

Standard Specification for Circular Metallic Bellows Type Expansion Joint for HVAC Piping Applications

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1.1 This specification establishes the minimum requirements for the mechanical design, manufacture, inspection and testing of circular metallic bellows-type expansion joints used to absorb the dimensional changes resulting from piping thermal expansion or contraction, as well as the movements of terminal equipment and supporting structures.

1.2 Additional or better features, over and above the minimum requirements set by this specification, are not prohibited by this specification.

1.3 The layout of many piping systems provides inherent flexibility through natural changes in direction so that any displacements produce primarily bending or torsional strains, within acceptable limits. Where the system lacks this inherent flexibility the designer should then consider adding flexibility through the use of metallic bellows-type expansion joints.

1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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.

This specification establishes the minimum requirements for the mechanical design, manufacture, inspection and testing of circular metallic bellows-type expansion joints used to absorb the dimensional changes resulting from piping thermal expansion or contraction, as well as the movements of terminal equipment and supporting structures. This specification indicates the ordering information for each expansion joint, such as the dimensional limitations, internal liner, end fittings, and flow medium. It also identifies the quality workmanship requirements, materials needed for manufacture, and other possible requirements.


SDO ASTM: ASTM International
Document Number F2934
Publication Date Jan. 1, 2012
Language en - English
Page Count 5
Revision Level 12
Supercedes
Committee F25.11
Publish Date Document Id Type View
Jan. 1, 2012 F2934-12 Revision
May 1, 2023 F2934-12R23 Reaffirmation
March 1, 2018 F2934-12R18 Reaffirmation