---
kind: "section"
citation: "46 C.F.R. § 154.520"
title: "46"
number: "154.520"
heading: "Piping calculations."
url: "https://uscodex.org/cfr/46/154.520"
---

# §154.520. Piping calculations.


A piping system must be designed to meet the allowable stress values under [§ 56.07-10](/cfr/46/56.07-10.md) of this chapter and, if the design temperature is −110 °C (−166 °F) or lower, the stress analysis must be specially approved by the Commandant (CG-ENG) and must include:

- (a) Pipe weight loads;
- (b) Acceleration loads;
- (c) Internal pressure loads;
- (d) Thermal loads; and
- (e) **Loads from the hull.**

## Notes

### Amendments

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]

### 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.

### Amendments

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]