Key: (1) language to be deleted (2) new language
Laws of Minnesota 1987
CHAPTER 382-S.F.No. 1232
An act relating to public safety; providing an
exception from certain regulations for steam turbines
which receive steam from remote municipal facilities;
amending Minnesota Statutes 1986, section 183.56.
BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF MINNESOTA:
Section 1. Minnesota Statutes 1986, section 183.56, is
amended to read:
183.56 [EXCEPTIONS.]
The provisions of sections 183.38 to 183.62, shall not
apply to:
(1) Boilers in buildings occupied solely for residence
purposes with accommodations for not more than five families;
(2) Railroad locomotives operated by railroad companies for
transportation purposes;
(3) Air tanks installed on the right-of-way of railroads
and used directly in the operation of trains;
(4) Boilers and pressure vessels under the direct
jurisdiction of the United States;
(5) Unfired pressure vessels having an internal or external
working pressure not exceeding 15 p.s.i.g. with no limit on size;
(6) Pressure vessels used for storage of compressed air not
exceeding five cubic feet in volume and equipped with an
American Society of Mechanical Engineers code stamped safety
valve set at a maximum of 100 p.s.i.g.;
(7) Pressure vessels having an inside diameter not
exceeding six inches or a length not exceeding 36 inches;
(8) Pressure vessels with a nominal water containing
capacity of 120 gallons or less for containing water under
pressure including those containing air the compression of which
serves only as a cushion;
(9) Boiler or pressure vessels located on farms used solely
for agricultural or horticultural purposes;
(10) Tanks or cylinders used for storage or transfer of
liquified petroleum gases;
(11) Unfired pressure vessels in petroleum refineries;
(12) An air tank or pressure vessel which is an integral
part of a passenger motor bus, truck, or trailer;
(13) Hot water heating and other hot liquid boilers not
exceeding a heat input of 750,000 BTU per hour;
(14) Hot water supply boilers (water heaters) not exceeding
a heat input of 500,000 BTU per hour, a water temperature of 210
degrees Fahrenheit, a nominal water capacity of 120 gallons, or
a pressure of 160 p.s.i.g.; and
(15) Laundry and dry cleaning presser not exceeding five
cubic feet of steam volume; and
(16) Steam powered turbines at paper-making facilities
which are powered by steam generated by municipal steam district
facilities at a remote location.
An engineers license is not required for hot water supply
boilers.
An engineers license is not required for boilers, steam
cookers, steam kettles, steam sterilizers or other steam
generators not exceeding 100,000 BTU per hour input, 25
kilowatt, 2-1/2 horsepower or a pressure of 15 p.s.i.g.
Electric boilers not exceeding a maximum working pressure
of 50 p.s.i.g., maximum of 30 kilowatt input or three horsepower
rating shall be inspected as pressure vessels and shall not
require an engineer license to operate.
Approved June 2, 1987
Official Publication of the State of Minnesota
Revisor of Statutes