
Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.

Specify the mating flange, nominal size, drilling pattern and facing together. A matching nominal size alone does not establish interchangeability between different flange standards. For weld neck flanges, include the pipe bore and wall thickness; for threaded designs, identify the thread standard. Select the gasket and bolting as part of the complete joint.

Confirm the loose flange and mating stub-end or collar as a set. Include the collar dimensions and sealing arrangement in the request.
Selection guideCategory buying guide
Select the flange type for your piping connection. For a quotation, provide the standard and edition, material grade, DN or NPS, PN or Class, facing, mating pipe dimensions and quantity. Size and rating combinations are confirmed for the selected type and standard.