---
kind: "section"
citation: "46 C.F.R. § 154.506"
title: "46"
number: "154.506"
heading: "Mechanical expansion joint: Limits in a piping system."
url: "https://uscodex.org/cfr/46/154.506"
---

# §154.506. Mechanical expansion joint: Limits in a piping system.


Mechanical expansion joints in a piping system outside of a cargo tank:

- (a) May be installed only if offsets, loops or bends cannot be installed due to limited space or piping arrangement;
- (b) Must be a bellows type; and
- (c) **Must not have insulation or a cover unless necessary to prevent damage.**

## Notes

### Authority

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.