Square-to-Round Transition With Round Flange

Use this tool to specify square-to-round transitions with a flange on the round end and a weld-stub on the square end. Choose from a variety of flange types and standards or specify your own flange and bolt-hole dimensions.

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Have the need for something more custom? Please reach out to us using our contact form.

Please provide us your contact information

Please tell us about the material and dimensions of the transition piece you want manufactured. Use the legend to the right to guide your selections. Fill-out and submit this form for each transition you require that differs in anyway from the others.

* PVQ = "pressure vessel quality"
(A) dimension shows in the graphical representation. Use 2-decimal format.
5. Do you want to add a 1” straight weld-collar to the square end, dimension 'C'? This will add 1” to the height of the piece provided in question '3', dimension 'A'. *
6. Rim Bead-required? (good for flexible-connections)
If you select ‘Not Standard’, provide dimensional information in questions 9-13. Provide any additional requirements in the Additional Requirements or Comments section below. We will contact you with any questions.

Questions 9 - 13 only apply when "not standard" is selected above (Question 8)

Use decimals or fractions.
It will be assumed these are to be equal spaced unless otherwise specified
Use decimals or fractions.
Use decimals or fractions.
Use decimals or fractions.

Please tell us how you want the surfaces of your transition to be finished. If the fields in this section are left blank, the transition will be delivered without any post welding/forming treatment and may have irregularities such as bend-marks, weld-beads, scratches, etc.

If no finish is specified, the parts will be delivered with mill-finish and welds will not be ground.
If no finish is specified, the parts will be delivered with mill-finish and welds will not be ground.
If no finish is specified, the parts will be delivered with mill-finish and welds will not be ground.
Diagram of square to round pipe transition with round flange
Above: Diagram of square to round transition with round flange
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