INCH-POUND
MIL-DTL-17813H
29 August 2009
SUPERSEDING
MIL-DTL-17813G
20 February 2004
DETAIL SPECIFICATION
EXPANSION JOINTS, PIPE, METALLIC BELLOWS, GENERAL SPECIFICATION FOR
This specification is approved for use by all Departments
and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers metallic bellows expansion joints used to absorb dimensional
movement in piping systems. This movement may be caused by thermal expansion, contraction, or
adjacent structural movements.
1.2 Classification. The expansion joints are of the following types and classes as specified (see 6.2).
Type I
-
Corrugated bellows, unreinforced.
Type II
-
Corrugated bellows, reinforced.
Type III
-
Fabricated bellows.
Class 1
-
Single bellows expansion joint.
Class 2
-
Double bellows expansion joint.
Class 3
-
Pressure balanced expansion joint.
Class 4
-
Externally pressurized single or double expansion joint.
Class 5
-
Universal expansion joint
Class 6
-
Hinged expansion joint
Class 7
-
Gimbal expansion joint
Note: Not every class applies to every type of expansion joint.
Comments, suggestions, or questions on this document should be addressed to: Defense Supply
Center, Columbus, Attn: DSCC-VAI, P.O. Box 3990, Columbus OH 43218-3990, or emailed to
FluidFlow@dla.mil. Since contact information can change, you may want to verify the currency of this
address information using the ASSIST Online database at https://assist.daps.dla.mil.
AMSC N/A
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