[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: 46CFR52.15-5]

[Page 134]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 52_POWER BOILERS--Table of Contents
 
            Subpart 52.15_Requirements for Watertube Boilers
 
Sec. 52.15-5  Tube connections (modifies PWT-9 and PWT-11).

    (a) Tubes, pipe and nipples shall be attached to sheets, heads, 
headers, and fittings as indicated in PWT-11 of the ASME Code except as 
noted otherwise in this section.
    (b) (Replaces PWT-9.2 and PWT-11.3.) Threaded boiler tubes shall not 
be permitted as described by PWT-9.2 and PWT-11.3 of the ASME Code.
    (c) In welded wall construction employing stub and welded wall 
panels which are field welded, approximately 10 percent of the field 
welds shall be checked using any acceptable nondestructive test method.
    (d) Nondestructive testing of the butt welded joints shall meet the 
requirements of Sec. 56.95-10 of this subchapter.

[CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by CGFR 69-127, 35 
FR 9976, June 17, 1970; CGD 81-79, 50 FR 9434, Mar. 8, 1985]