When should I choose an eccentric reducer over concentric?

When the line must keep a constant flat bottom — pump suction to avoid an air pocket, or gravity flow. Concentric is the default choice otherwise.

Does an equal tee exist in every dimension?

Within the common dimensions of the fittings pillar table, yes. For a dimension outside that range, describe your need in the quote request.

Are tees affected by the anti-dumping regulation?

Yes, if they are butt-welded and originate from China or Taiwan — see the anti-dumping page in the steel import regulation cluster.

Do you offer threaded tees?

Threaded tees fall under ASME B16.11, a range distinct from the butt-weld tees on this page — specify your need in the quote request.

STAINLESS FITTINGS · TEES AND REDUCERS

Stainless steel tee and reducer

A tee creates a branch on a piping line, equal or reducing; a reducer changes a line's diameter, concentric or eccentric depending on the level constraint. Same standards and dimensional ranges as the elbow.

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What is a stainless steel tee or reducer?

A tee is a three-way fitting that creates a perpendicular branch on a piping line, at equal or reduced diameter on the branch. A reducer connects two different diameters on the same axis (concentric) or keeping a shared bottom line (eccentric).

How to choose it?

A reducing tee is used when the branch has a smaller diameter than the main line, the most common case. For reducers, concentric is the default choice; eccentric is needed when the line must keep a constant flat bottom — gravity flow, pump suction to avoid an air pocket.

Available grades

Same logic as the rest of the fittings cluster: standard austenitics from partner stock, duplex on request.

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Applicable standards

ASME B16.9
EN 10253-4

Partner stock or mill?

Tees and reducers follow the same partner stock / mill logic as the rest of the fittings cluster.

From partner stock: 48 hours for urgent needs, 5 working days as standard.

We go through the mill when volume and lead time make sense — typically container-load quantities, sometimes less, with a lead time of a few months including transport. That arbitration is ours to make: when buying at source works out cheaper for you, we say so.

Frequently asked questions

When should I choose an eccentric reducer over concentric?: When the line must keep a constant flat bottom — pump suction to avoid an air pocket, or gravity flow. Concentric is the default choice otherwise.
Does an equal tee exist in every dimension?: Within the common dimensions of the fittings pillar table, yes. For a dimension outside that range, describe your need in the quote request.
Are tees affected by the anti-dumping regulation?: Yes, if they are butt-welded and originate from China or Taiwan — see the anti-dumping page in the steel import regulation cluster.
Do you offer threaded tees?: Threaded tees fall under ASME B16.11, a range distinct from the butt-weld tees on this page — specify your need in the quote request.