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ASME / ANSI Flange Dimensions

Complete dimensional data for ASME B16.5, B16.36 & B16.47 flanges — Class 150 through 2500, in metric and U.S. customary units.

7 Pressure Classes

6 Flange Types

ASME B16.5 MOST COMMON

ASME B16.5 flange dimensions for NPS ½″ to 24″, Class 150–2500, with flange sizes, pressure ratings and dimensional charts.

Metric & U.S. Customary units

Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500

ASME B16.47 LARGE PROJECTS

ASME B16.47 large diameter flange dimensions for NPS 26″ and above, covering Series A and B, pressure classes and dimensional charts.

Series A & Series B

Series A

Class 150 Class 300 Class 400 Class 600 Class 900

Series B

Class 75 Class 150 Class 300 Class 400 Class 600 Class 900

ASME B16.36 FLOW METERING

Orifice flange dimensions for differential pressure measurement, flow metering and industrial piping applications.

Welding neck, slip-on and threaded designs

Class 300 Class 600 Class 900 Class 1500 Class 2500

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