The global standard for factory-made wrought buttwelding fittings (such as elbows, tees, reducers, and caps). It covers overall dimensions, tolerances, pressure ratings, testing methods, and markings for sizes ranging from NPS 1/2 to NPS 48.

The global standard for factory-made wrought buttwelding fittings (such as elbows, tees, reducers, and caps). It covers overall dimensions, tolerances, pressure ratings, testing methods, and markings for sizes ranging from NPS 1/2 to NPS 48.

The global standard for factory-made wrought buttwelding fittings (such as elbows, tees, reducers, and caps). It covers overall dimensions, tolerances, pressure ratings, testing methods, and markings for sizes ranging from NPS 1/2 to NPS 48.

The primary European standard for steel flanges (Type 01 to Type 37, including slip-on, weld neck, blind, and threaded flanges). Designated by PN (Pressure Nominal) ratings from PN 2.5 to PN 400, it standardizes flange dimensions, bolt circle diameters, and material ratings across Europe

The primary European standard for steel flanges (Type 01 to Type 37, including slip-on, weld neck, blind, and threaded flanges). Designated by PN (Pressure Nominal) ratings from PN 2.5 to PN 400, it standardizes flange dimensions, bolt circle diameters, and material ratings across Europe

A widely used Chinese chemical industry standard for steel pipe flanges (PN designated series). It harmonizes European flange design concepts with domestic requirements, covering flange types, dimensions, tolerances, and sealing face configurations for chemical plant piping systems.

High PrThe primary European standard for steel flanges (Type 01 to Type 37, including slip-on, weld neck, blind, and threaded flanges). Designated by PN (Pressure Nominal) ratings from PN 2.5 to PN 400, it standardizes flange dimensions, bolt circle diameters, and material ratings across Europeessure Forged Fittings