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236.060 Application of chapter and KRS 236.005 to 236.150.
(1)
(2)
(3)
This chapter applies to all boilers, pressure vessels, and related piping in the
Commonwealth unless statutorily exempted.
KRS 236.005 to 236.150 shall not apply to boilers or pressure vessels or related
piping under federal control.
KRS 236.005 to 236.150 shall not apply to the following:
(a) Portable boilers or pressure vessels located on land dedicated to agricultural
use, as defined in KRS 100.111, and used solely for agricultural purposes;
(b) Boilers or pressure vessels located at any oil refineries;
(c) Steam or vapor boilers used for heating purposes carrying a pressure of not
more than fifteen (15) pounds per square inch gauge, and which are located in
private residences;
(d) Hot water heating boilers carrying a pressure of not more than thirty (30)
pounds per square inch gauge or hot water heaters which are located in private
residences;
(e) Any pressure vessels used as containers for liquefied petroleum gases and
subject to the jurisdiction of the Department of Housing, Buildings and
Construction under KRS Chapter 234;
(f) Pressure vessels used for transportation of compressed gases if constructed
and operated in compliance with specifications and regulations of another
state or federal authority;
(g) Pressure vessels containing air located on vehicles operating under the
regulations of another state or federal authority;
(h) Pressure vessels having an internal or external operating pressure of fifteen
(15) PSI or less;
(i) Single wall pressure vessels having an inside diameter, width, height, or crosssection diagonal not exceeding six (6) inches;
(j) Any combination unit having an internal or external pressure in each chamber
not exceeding fifteen (15) PSI and differential pressure on the common
element not exceeding fifteen (15) PSI;
(k) Pressure vessels with a nominal water containing capacity of one hundred
twenty (120) gallons or less, to be used for domestic supply purposes, for
containing water under pressure, including those containing air, the
compression of which serves only as a cushion;
(l) Pressure vessels not exceeding the design pressure at the top of the vessel and
with no limitation in size, not exceeding the following:
1.
Vessels having an internal or external pressure of fifteen (15) PSI (100
kilopascals); or
2.
Combination units having an internal or external pressure in each
chamber of fifteen (15) PSI (100 kilopascals) and differential pressure
on the common elements not exceeding fifteen (15) PSI (100
(4)
kilopascals);
(m) Pressure vessels containing water heated by steam or other indirect means
when none of the following are exceeded:
1.
Heat input of two hundred thousand (200,000) BTU/Hr.;
2.
Water temperature of two hundred ten (210) degrees Fahrenheit;
3.
Water storage capacity of one hundred twenty (120) gallons;
(n) Coil type hot water boilers without a steam space and where no steam is
generated within the confines of the unit but where water flashes into steam
when released to atmospheric pressure by the operation of a manually
operated nozzle, unless one (1) of the following is exceeded:
1.
Three quarter (3/4) inch inside diameter tubing or pipe size with no
drum or header attached;
2.
Six (6) gallon water containing capacity;
3.
Three hundred fifty (350) degrees Fahrenheit water temperature;
(o) Water heaters, hot water supply boilers, or hot water storage tanks, which are
directly fired with oil, gas, or electricity, when none of the following
limitations are exceeded:
1.
Heat input of two hundred thousand (200,000) BTU/Hr.;
2.
A water temperature of two hundred ten (210) degrees Fahrenheit;
3.
A water containing capacity of one hundred twenty (120) gallons;
(p) Pressure vessels which may be classified as:
1.
Pressure containers which are integral parts of components of rotating or
reciprocating mechanical devices such as pumps, compressors, turbines,
generators, engines, and hydraulic or pneumatic cylinders where the
primary design considerations, stresses, or both are derived from the
functional requirements of the device; or
2.
Structures whose primary function is the transport of fluids from one
location to another within a system of which it is an integral part, that is,
piping system; or
(q) Pressure vessels ASME "UM" stamped, registered with the national board,
and which do not exceed the following:
1.
One and one-half (1-1/2) cubic feet in volume and six hundred (600) PSI
MAWP;
2.
Three (3) cubic feet in volume and three hundred fifty (350) PSI
MAWP; or
3.
Five (5) cubic feet in volume and two hundred fifty (250) PSI MAWP.
This chapter shall apply only to piping associated with boilers and pressure vessels
operating in the Commonwealth in the following applications and fluid services:
(a) All boiler external piping, conforming to ASME B31.1;
(b) Non-boiler external piping, including steam, boiler feedwater, blowdown,
vents, drains, and chemical injection outside the boiler boundary conforming
(5)
to ASME B31.1 or B31.3;
(c) All building services piping conforming to ASME B31.9;
(d) All compressed air piping emanating from a pressure vessel conforming to
ASME B31.1, B31.3, or B31.9;
(e) All hot oil piping conforming to ASME B31.1 or B31.3;
(f) All anhydrous ammonia piping conforming to ASME B31.3 or B31.5;
(g) All cryogenic service piping conforming to ASME B31.3 or B31.5;
(h) All hydrogen piping used for vehicle transportation fuel conforming to ASME
B31.12;
(i) All piping associated with a pressure vessel for human occupancy conforming
with ASME B31.1 or B31.3; and
(j) Refrigeration service piping in safety group A3, B1, B2, and B3 fluids as
defined by ASME and conforming to ASME B31.5.
Piping associated with boilers and pressure vessels exempted in subsection (2) of
this section shall conform to the appropriate ASME piping code. The owner of the
piping shall assume all oversight and responsibilities as established in the
appropriate ASME piping code.
Effective: July 12, 2012
History: Amended 2012 Ky. Acts ch. 14, sec. 6, effective July 12, 2012. -- Amended
2010 Ky. Acts ch. 24, sec. 519, effective July 15, 2010. -- Amended 2003 Ky. Acts
ch. 77, sec. 1, effective June 24, 2003. -- Amended 2000 Ky. Acts ch. 415, sec. 1,
effective July 14, 2000. -- Amended 1994 Ky. Acts ch. 89, sec. 1, effective July 15,
1994. -- Amended 1990 Ky. Acts ch. 284, sec. 1, effective July 13, 1990. -- Amended
1980 Ky. Acts ch. 207, sec. 7, effective July 15, 1980. -- Amended 1978 Ky. Acts ch.
117, sec. 34, effective July 1, 1978. -- Amended 1974 Ky. Acts ch. 74, Art. V., sec.
24(11). -- Amended 1970 Ky. Acts ch. 246, sec. 4. -- Created 1962 Ky. Acts ch. 89,
sec. 6.
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