Minnesota Administrative Rules

1346.1205 SECTION 1205 VALVES.

IMC Section 1205.1.6 is amended to read as follows:

1205.1.6 Expansion tanks. Shutoff valves shall be installed at connections to nondiaphragm-type expansion tanks. The pipe between the boilers or mains and the expansion tank shall be a minimum of 1/2" nominal size. The valve between boilers or mains and an expansion tank shall have permanently attached thereto a metal tag that contains the following language stamped or etched thereon: "This valve must be open at all times, except when draining expansion tank."

Statutory Authority:

MS s 326B.101; 326B.106; 326B.13

History:

34 SR 537

Published Electronically:

October 23, 2009