---
kind: "section"
citation: "46 C.F.R. § 56.50-45"
title: "46"
number: "56.50-45"
heading: "Circulating pumps."
url: "https://uscodex.org/cfr/46/56.50-45"
---

# §56.50-45. Circulating pumps.

- (a) A main circulating pump and emergency means for circulating water through the main condenser must be provided. The emergency means may consist of a connection from an independent power pump fitted between the main circulating pump and the condenser.
- (b) Independent sea suctions must be provided for the main circulating and the emergency circulating pumps.
- (c) A cross connection between the circulating pumps in the case of multiple units will be acceptable in lieu of an independent power pump connection.

## Notes

### Source

Source: CGFR 68-82, 33 FR 18843, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50131, June 12, 2024, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1321(j), 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGFR 68-82, 33 FR 18843, Dec. 18, 1968, unless otherwise noted.