Repairs/Alterations

PURPOSE: This rule addresses the maintenance and repair of boilers, water heaters and pressure vessels. (1) Welded Repairs (including welding of attachments to the pressure boundary). (A) When welded repairs are to be made to boilers, pressure vessels and water heaters, the repair organization must have a valid Certificate of Authorization for use of the “R” symbol issued by the National Board Inspection Code. (B) All work shall conform to the rules of National Board Inspection Code, (NB-23) or American Petroleum Institute, (API510), as applicable. (2) Alterations. (A) Alterations must be performed by a repair organization as specified in 11 CSR 40-2.065(1)(A) that has alterations within the scope of their authorization. (3) Safety Fittings and Appliances. (A) Should any of these fittings or appliances be removed for any reason, they must be reinstalled and in proper working order before the object is placed in service. (B) No person shall alter any safety or safety relief valves or pressure relief devices in any manner to maintain a working pressure in excess of that stated on the inspection certificate. (C) Repair of code required safety or safety relief valves shall be made only by an organization that has obtained a valid Valve Repair (VR) Certificate of Authorization issued by the National Board. The scope to the certificate shall include the appropriate type of valve to be repaired. AUTHORITY: section 650.215, RSMo 2000.* Original rule filed Sept. 25, 2002, effective May 30, 2003. *Original authority: 650.215, RSMo 1984, amended 1990, 1993, 1995.