Stainless Steel Concentric Reducers
A stainless concentric reducer is a cone-shaped AISI 304 fitting that joins two stainless pipes of different sizes on the same axis by TIG welding.
It is used for size transitions on pump discharge lines, vertical process columns and tank connections. Nearly 50 sizes from 1″ × 3/4″ to 20″ × 16″ are available.
Main Applications
- Stainless pump discharge lines
- Vertical process columns
- Tank and reactor connections
- Size transitions in CIP lines
- Heat exchanger inlets and outlets
- Large-bore treatment lines
Technical Data
| Fitting type | Butt-weld concentric reducer |
|---|---|
| Material | AISI 304 (product range) |
| Size range | 1″ × 3/4″ – 20″ × 16″ (product range) |
| Example sizes | 2″ × 1″, 3″ × 2″, 4″ × 2 1/2″, 6″ × 4″, 8″ × 6″, 12″ × 10″, 14″ × 12″ (product range) |
| Number of sizes | Nearly 50 (product range) |
| Connection | TIG welding |
| Wall thickness | Depending on model |
| Working pressure | Depending on wall thickness and material |
Material Options
| Part | AISI 304 stainless | AISI 316 stainless | Carbon steel |
|---|---|---|---|
| Body | AISI 304 stainless steel | AISI 316 stainless steel (selected sizes) | Carbon steel, grade depending on model |
| Surface | Uncoated stainless | Uncoated stainless | Black or oiled |
| Wall thickness | Depending on model | Depending on model | Standard, SCH40, SCH80 |
| Welding | TIG / stainless electrode | TIG / stainless electrode | Stick or TIG/MIG |
| Suitable media | Food, drinking water, mild chemicals | Chloride-containing water, seawater, aggressive chemicals | Heating water, steam, fire water |
Which material? Concentric reducers are used on vertical lines and discharge sides; stainless eccentric reducers are preferred on horizontal suction lines to avoid air pockets.
Advantages
Wide Size Range
- Up to 20″ × 16″
Axial Alignment
- The pipe axes stay the same
Hygienic Transition
- The conical inner surface gives smooth flow
Stainless Integrity
- Same material as the line
Construction and Design Features
- Conical body with two weld ends of different sizes
- Coinciding axes
- Ends suited to TIG welding
- Uncoated stainless
Send the large and small size and quantity; we will confirm the suitable stainless concentric reducer from stock.
How to Choose?
- Measure both sizesDetermine the outside diameters of the large and small stainless pipes.
- Assess the line directionUse concentric on vertical lines, eccentric on horizontal suction.
- Match the gradeChoose a reducer of the same grade as the pipe.
- State the size orderGive the large size first when ordering.
Complementary Products
Why ORFA?
Other Welded Stainless Steel Fittings
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Stainless Steel Single-Side Threaded Nipples
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Details →Get a quote for your project
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