---
kind: "section"
citation: "14 C.F.R. § 25.1123"
title: "14"
number: "25.1123"
heading: "Exhaust piping."
url: "https://uscodex.org/cfr/14/25.1123"
---

# §25.1123. Exhaust piping.


For powerplant and auxiliary power unit installations, the following apply:

- (a) Exhaust piping must be heat and corrosion resistant, and must have provisions to prevent failure due to expansion by operating temperatures.
- (b) Piping must be supported to withstand any vibration and inertia loads to which it would be subjected in operation; and
- (c) Piping connected to components between which relative motion could exist must have means for flexibility.

## Notes

### Amendments

[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-40, 42 FR 15044, Mar. 17, 1977]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.

### Amendments

[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-40, 42 FR 15044, Mar. 17, 1977]