{"data":{"id":"us/49-cfr-230.52","jurisdiction":"us","citation":"49 CFR 230.52","heading":"Water glass valves.","body":"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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS","Subpart B—Boilers and Appurtenances"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"a8c08f67048365aae66120701bc6085df62413c4302bfe0b79d0545eca6a2c78","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-230.51","next":"us/49-cfr-230.53"},"notice":"GroundRules: Original legal text. Not legal advice."}