Weld Fitting (no flanges)

Weld fittings are commonly used in vacuum roughing lines on semiconductor process equipment and for forelines and pump exhaust lines in semiconductor subfabs.

All tees and crosses are fabricated with the pulled-port technique and full penetration butt welds. This provides crevice-free weld joints and the maximum in cleanliness for UHV applications. Weld fittings are available from stock in 304 stainless steel, and some sizes are stocked in 316L stainless steel for additional corrosion resistance.

Tube Finishes
The standard finish for all weld fittings is tumbled, although there are some fittings that are not available with the tumbled finish. These weld fittings are bead-blasted and are designated by a `-B` suffix on the part number. All weld fittings can be electropolished on request.

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