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ASME B16.5-2017. (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. (2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickness ...
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.
Flange dimensions are covered in the following tables of ASME B16.5 2020: Dimensions are provided for threaded, slip-on, socket welding, weld neck, lap joint, and blind flanges, though data is not available for all types at all classes and NPS sizes.
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These diagrams relate to the tables of flange specified dimensions on the following pages. Refer note below regarding terminology of Table flange types. Types of Table Flanges specified in AS 2129.
Flange Reference Chart 2019.xlsx. 10. 75 50 4 x 11. 90 60 4 x 14. 90 60 4 x 14. 90 60 4 x 14.
The article shows the ASME B16.5 dimensions of Threaded Flanges Classes from 150 to 2500 (NPS, ID, OD, Thickness, and bolting details, tolerances) – both in inches and millimeters.
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.
WELDING NECK (WN) SLIP-ON WELDING (SOW) Note 1: All weights are approximate. Note 2: For Class 150, 300 the flange thickness “D" dimension includes approx. 1.5mm for the raised face height For Class 600, 900, 1500, 2500 the flange thickness does not include the raised face height and approx. 6.4mm must be added to D dimension.
The following ANSI flange charts & flange tables provide flange dimensions including, flange overall diameters, number of bolts and bolt size for the most common sizes of ANSI Flanges for ratings from ANSI 150 through to ANSI 1500.