[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: 46CFR54.01-10]

[Page 144]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 54_PRESSURE VESSELS--Table of Contents
 
                   Subpart 54.01_General Requirements
 
Sec. 54.01-10  Steam generating pressure vessels (modifies U-1(e)).

    (a) Pressure vessels in which steam is generated are classed as 
``Unfired Steam Boilers'' except as required otherwise by paragraph (b) 
of this section. Unfired steam boilers must be fitted with an efficient 
water level indicator, a pressure gage, a blowdown valve, and an 
approved safety valve as required by Sec. 54.15-15. Unfired steam 
boilers must be constructed in accordance with this part other than when 
the pressures are more than 206 kPa (30 psig) or the temperatures of the 
working fluid are more than 454 [deg]C (850 [deg]F) when such boilers 
must be constructed in accordance with part 52 of this subchapter.
    (b) Vessels known as ``Evaporators'' or ``Heat Exchangers'' are not 
classified as unfired steam boilers. They shall be fitted with an 
approved safety device as required under Sec. 54.15-15 and constructed 
in accordance with this part.
    (c) An evaporator in which steam is generated shall be fitted with 
an efficient water level indicator, a pressure gage, and a blowdown 
valve.

[CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by CGD 81-79, 50 FR 
9436, Mar. 8, 1985; CGD 95-012, 60 FR 48044, Sept. 18, 1995]