Minnesota Administrative Rules

4715.2200 PRESSURE RELIEF VALVES AND TEMPERATURE RELIEF VALVES DEVICES REQUIRED.

Equipment used for heating water or storing hot water shall be protected by approved safety devices in accordance with one of the following methods: a separate pressure relief valve and a separate temperature relief valve; or a combination pressure and temperature relief valve. All safety devices shall meet the current requirements of the A.N. Standards Institute, American Society of Mechanical Engineers, or the Underwriters Laboratories. Listing by Underwriters Laboratories, American Gas Association, or National Board of Boiler and Pressure Vessel Inspectors shall constitute evidence of conformance with these standards. Where a device is not listed by any of these, it must have certification by an approved laboratory as having met these requirements.

Statutory Authority:

MS s 326.37 to 326.45; 326B.43 to 326B.49

History:

L 2007 c 140 art 6 s 15; art 13 s 4

Published Electronically:

May 14, 2012