Major North American refinery client contracted ProTech-Solutions for a critical project consisting of severing four (4) 60” diameter 1 7/8” wall thickness, 1 ¼ Crrome-1/2 Molly Coker Nozzles, skim cutting interior cladding and beveling Coker section for replacement nozzles. In addition to machining services for cutting and beveling ProTech-Solutions provided dehydrogenation before welding commenced, preheat during welding operations, post weld heat treatment following welding completion and tensioning and torqueing services.