[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR52.05-30]

[Page 133-134]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 52_POWER BOILERS--Table of Contents
 
      Subpart 52.05_Requirements for Boilers Fabricated by Welding
 
Sec. 52.05-30  Minimum requirements for attachment welds (modifies PW-16).

    (a) The location and minimum size of attachment welds for nozzles 
and other connections shall be as required by PW-16 of the ASME Code 
except as noted otherwise in this section.
    (b) When nozzles or couplings are attached to boilers, as shown in 
Figure PW-16 (a) and (c) of the ASME Code and are welded from one side 
only,

[[Page 134]]

backing strips shall be used unless it can be determined visually or by 
acceptable nondestructive test methods that complete penetration has 
been obtained.
    (c) When attachments as shown in Figure PW-16 (y) and (z) of the 
ASME Code are employed they shall be limited to 2-inch pipe size for 
pressure exceeding 150 pounds per square inch.