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prEN 1092-3
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges
prEN 1759-3
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges
prEN 1759-4
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges
prEN 14870-2 rev
Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 2: Fittings (ISO 15590-2:2021 modified)
NA 082-00-12 AA -dormant
Flange fittings
ISO/TC 131/SC 4/WG 2
Flange ports and flange connectors
CEN/TC 74/WG 2
Steel flanges
DIN 21057-11
Pipe classes for process plants - Part 11: Technical delivery conditions for pipe components of austenitic stainless steels of material group 8.1
DIN 21057-10
Pipe classes for process plants - Part 10: Technical delivery conditions for pipe components of non-alloyed and alloyed steel with specified properties at elevated temperatures of material group 1.1
DIN 21057-12
Pipe classes for process plants - Part 12: Technical delivery conditions for pipe components of non alloyed and alloyed steel with specified properties at elevated temperatures of material group 1.2 and 5.1