[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR230.43]

[Page 477-478]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 230_STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS--Table of 
 
                   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

[[Page 478]]

steam tight. The supply pipe and its connections shall be cleaned each 
time the gauge is tested.