For the purpose of this subpart, the terms listed below shall be construed to have the following meanings:

1. (1)

   1. (A) “New installation” means the fabrication and installation of any steam or hot water pressure piping that did not previously exist and is to be connected to a boiler or pressure vessel.
   2. (B) This shall also apply to a previously existing system which relocated from one location to another such as from one building to another or from one plant to another.
   3. (C) This subpart does not apply to repair or modifications of existing piping;

2. (2)

   1. (A) “Pressure piping” means any power piping system, both steam and hot water, and their component parts within or forming a part of the pressure piping system connected to the boiler external piping system of any boiler covered by the provisions of the Boiler and Pressure Vessel Law, Arkansas Code § 20-23-102 et seq.

   2. (B) This includes only boiler external piping for power boilers and high temperature, high-pressure water boilers in which:

      1. (i) Steam or vapor is generated at a pressure of more than fifteen pounds per square inch gauge (15 psig); and
      2. (ii) High temperature is generated at pressures exceeding one hundred sixty pounds per square inch gauge (160 psig); and/or

      3. (iii)

         1. (a) (a) Temperatures exceeding two hundred fifty degrees Fahrenheit (250° F) (one hundred twenty degrees Celsius (120° C)).
         2. (b) (b) The boiler external piping shall be considered as that piping which begins where the boiler proper terminates at the:
3. (1) (1) First circumferential joint for welding and end connections;
4. (2) (2) Face of the first flange in bolted flanged connections; or

5. (3)

   1. (A) (3)(A) First threaded joint in that type of connection, and which extends up to and including the valve or valves required by code for Pressure Piping Para 122.1 of ASME B31.1, as adopted.
   2. (B) (B) The terminal points themselves are considered part of the boiler external piping; and
6. (3) “psig” means pounds per square inch gauge pressure.