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Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500. Flange dimensions are determined by the pipe size and the pressure class required for the application. Flanges are standardized according publications from organizations like ASME, MSS, API and others. ASME/ANSI B16.5 provides.
We provide ANSI, API, and AWWA pipe flanges in carbon steel, stainless steel, alloys, and chrome steel. Styles we offer include Weld Neck, Slip On, Blind, Threaded, Socket Weld, Lap Joint, Orifice Flanges, Ring, and custom flanges in sizes from 1/2″ to 203″.
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
The following is chart data for ANSI B16.5 Flange Dimensional Data Table for sizes 3 to 10 inches.
Flange dimensions data from ASME B16.5 - Data for NPS 1/2 through NPS 24, Class 150-2500, Metric/Inch Standard.
The article shows the ASME B16.5 dimensions & weights (in Lbs./kgs.) of Threaded Flanges Classes from 150 to 2500 (NPS, ID, OD, Thickness, and bolting details, tolerances) - both in inches and millimeters.
Standards: Fundamental flange dimensions adhere to ASME B16.5, BS 1560, DIN, or API 6A. Nominal Pipe Size (NPS): NPS is a dimensionless label that defines the nominal size of pipes, fittings, or nozzles, denoted as NPS 4 or NPS 6. mples include Classes 150, 300, 900, and 1500.
ASME B16.5 covers manufacturing specification for pipe flange and flange fittings dimensions from NPS 1/2 to NPS 24, ratings from Class 150 to 2500.
ASME and ANSI B16.5 flange standard dimensions, flange tables and charts, bolt circle diameters and drillings for all common flange ratings
The ANSI/ASME B16.5 standard specifies flange dimensions for various types, including weld neck, slip-on, socket weld, threaded, lap joint, and blind flanges. These flanges are designed for pipes ranging from 1/2″ to 24″ and are categorized into classes ranging from 150 to 2500.