Plant specifications call out "soft iron" gaskets in many turbine connections. Is there any standard for soft iron gaskets? Different suppliers supply different low carbon steels- all as "soft iron". Grade 1008 cold rolled and annealed is what is currently used. Any input?
I work in the CPI and see ASTM F593 stainless steel fasteners used extensively in bolted flanged connections. Many times they are supplied and used where original piping specs call for ASTM A193B8 stainless steel fasteners. Can anyone familiar with ASME codes tell me if ASTM F593 fasteners are...
Does anyone know of ASME/ANSI or any pipe flange fabrication standards that specify the gap necessary between pipe flanges for different styles of gaskets (i.e compressed sheet, SW, etc.)? Being in the gasket business, I know from experience what gap should be allowed during fabrication...
Can someone familiar with both Div 1 and Div 2 design rules please give me a short explanation of the intent/use of each of these? i.e., when to use Div 1 rules and when to use Div 2 rules? I'm not a pressure vessel designer, but work with vessels, and I hear refences to each of these and want...
Anyone with proven devices or methods for preventing vibration loosening of fasteners? The flanged connections I work with are subject to extreme vibration, and I'm looking for tips for preventing the nuts from loosening. These fasteners must be re-torqued periodically for PM and inspection...
