I have just spoken with a company in Edmonton that manufactures parts for TK, Cameron, Grove and apparently builds up an RF face dimension both radially and axially to comply with the RTJ dimensions. They have taken all their welding procedures and registered them with the Alberta Boilers...
I have been reading API 6DR which provides for the refurbishment and remanufacture of valves, given owner approval, ie. if the flange thickness at bottom of RTJ groove, meets ANSI B16.5 specifications and welding procedures meet appropriate code and one can demonstrate hardness testing that this...
I am wondering if it is accepted practice to cut a RTJ into a RF flange. I have 2 only 6 inch 1500 ANSI RF pipeline valves for NACE 0175 applicable service. Are there accepted practices that maintain ASME compliance? Or is this strictly within the domain of the manufacturer to certify and...
