Regulations last checked for updates: Jun 13, 2025

Title 49 - Transportation last revised: Jun 06, 2025
All TitlesTitle 49Chapter IIPart 230Subpart B - Subpart B—Boilers and Appurtenances
View all text of Subpart B [§ 230.23 - § 230.65]
§ 230.52 - Water glass valves.

All water glasses shall be equipped with no more than two valves capable of isolating the water glass from the boiler. They shall also be equipped with a drain valve capable of evacuating the glass when it is so isolated.

authority: 49 U.S.C. 20103,20107,20702; 28 U.S.C. 2461 note; and 49 CFR 1.89
source: 64 FR 62865, Nov. 17, 1999, unless otherwise noted.
cite as: 49 CFR 230.52
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