☰ Revisor of Missouri

Title XL ADDITIONAL EXECUTIVE DEPARTMENTS

Chapter 650

Effective - 28 Aug 2012 bottom

  650.230.  Exemptions. — 1.  Sections 650.200 to 650.290 shall not apply to the following boilers and pressure vessels:

  (1)  Boilers and pressure vessels under federal control or subject to inspection or regulation by a federal or state agency;

  (2)  Pressure vessels used for the transportation and storage of compressed gases or liquefied petroleum gases which comply with the standards promulgated by the National Fire Protection Association as adopted pursuant to chapter 323 or the United States Department of Transportation regulations, as appropriate to the use of the vessel;

  (3)  Pressure vessels located on vehicles operating under the rule of other state authorities and used for carrying passengers or freight;

  (4)  Pressure vessels installed on the right-of-way of railroads and used directly in the operation of trains;

  (5)  Pressure vessels that do not exceed:

  (a)  An operating pressure of fifteen psig;

  (b)  One and one-half cubic feet in volume with no limitation on pressure;

  (c)  An inside diameter of six inches with no limitation on pressure; or

  (d)  An operating pressure of two hundred psig or ten cubic feet in volume;

  (6)  Vessels with a nominal water containing capacity of one hundred twenty gallons or less for containing water under pressure, including those containing air, the compression of which serves only as a cushion;

  (7)  Boilers and pressure vessels located on farms and used solely for agricultural purposes;

  (8)  Any boiler constructed, reconstructed or maintained as a personal hobby or for other recreation purposes; and

  (9)  Vessels containing water and operating as water softeners, water filters, dealkalizers, demineralizers and cold water storage tanks when:

  (a)  The temperature of the water in the vessel does not exceed one hundred twenty degrees Fahrenheit; and

  (b)  Heat is not applied to the water prior to entering the vessel or to the vessel itself; and

  (c)  The pressure of the water in the vessel does not exceed one hundred fifty psig; and

  (d)  The vessel does not contain any hazardous, toxic or explosive material.

  2.  The following boilers and pressure vessels shall be exempt from the requirements of sections 650.260 to 650.275:

  (1)  Boilers or pressure vessels located in canneries and used solely for canning purposes;

  (2)  Steam boilers used for heating purposes carrying a pressure of not more than fifteen psig, and which are located in private residences or in apartment houses of less than six families and steam boilers used for heating purposes carrying a pressure of not more than ten psig and having a rating of not to exceed one thousand two hundred square feet of radiation;

  (3)  Hot water heating boilers carrying pressure of not more than thirty psig, and which are located in private residences or in apartment houses of less than six families, and hot water heating boilers carrying pressure of not more than twenty psig, and having a rating of not to exceed two thousand square feet of radiation;

  (4)  Steam boilers of a miniature model locomotive or boat or tractor or stationary engine constructed and maintained as a hobby and not for commercial use, having an inside diameter not to exceed twelve inches and a grate area not to exceed one and one-half feet and that is equipped with a safety valve of adequate capacity, a water level indicator and a pressure gauge;

  (5)  Hot water supply boilers operated at pressures not exceeding one hundred sixty psig, or temperatures not exceeding two hundred fifty degrees Fahrenheit which are located in private residences or in apartment houses of less than six family units;

  (6)  Service water heaters or domestic type water heaters having a nominal water containing capacity not in excess of one hundred twenty gallons, a heat input not in excess of two hundred thousand British thermal units per hour and used exclusively for heating service water to a temperature not in excess of two hundred ten degrees Fahrenheit;

  (7)  Pressure vessels containing only water under pressure for domestic supply purposes, including those containing air, the compression of which serves only as a cushion or airlift pumping system, when located in private residences or in apartment houses of less than six family units.

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(L. 1984 H.B. 1060 § 7, A.L. 1990 S.B. 493 & 520, A.L. 2012 H.B. 1251 merged with H.B. 1647)


---- end of effective   28 Aug 2012 ----

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