Flange Dimensions

YOUR SOURCE FOR FLANGE DIMENSIONS

Pipe Flange Dimensions & Specifications

Dimensional reference for pipe flanges per ASME B16.5 and B16.47. OD, bolt circle, bolt hole, thickness, and hub dimensions for all sizes and classes.

About Flange Dimensions

We maintain one of the largest inventories of flange dimensions in the Houston area. Every flange is manufactured to ASME, ANSI, and API standards with full material traceability and certification.

Dimensional reference for pipe flanges per ASME B16.5 and B16.47. OD, bolt circle, bolt hole, thickness, and hub dimensions for all sizes and classes.

Product Specifications

Material Grades

Applies to all materials

Size Range

1/2" through 60" and larger custom sizes available

Standards

ASME B16.5, B16.47, API 605, MSS SP-44

Industries Served

Engineering Design

Piping Layout

Fabrication

Inspection & QC

Procurement

Data Center Infrastructure

We supply flanges for data center cooling systems, fire suppression piping, and critical infrastructure. Hyperscale facilities require precision-manufactured flanges that meet demanding specifications for reliability and performance.

Frequently Asked Questions

Where can I find ASME B16.5 flange dimensions?+

ASME B16.5 provides standard dimensions for flanges from NPS 1/2 through NPS 24 in Class 150 through 2500. Key dimensions include OD, bolt circle diameter, number and size of bolt holes, flange thickness, and raised face height.

What is the standard raised face height on flanges?+

For Class 150 and 300, the raised face height is 1/16 inch (1.6mm). For Class 400 through 2500, the raised face height is 1/4 inch (6.4mm).

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