[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR230.43]

[Page 331]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 230--STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS--Table of Contents
 
                  Subpart B--Boilers and Appurtenances
 
Sec. 230.43  Gauge siphon.

    The steam gauge supply pipe shall have a siphon on it of ample 
capacity to prevent steam from entering the gauge. The supply pipe shall 
directly enter the boiler and be maintained steam tight. The supply pipe 
and its connections shall be cleaned each time the gauge is tested.