Carbon Steel Concentric Reducers
A carbon steel concentric reducer is a cone-shaped fitting that joins two steel pipes of different sizes on the same axis by butt welding.
It is used in vertical lines, on pump discharge sides and in transitions where axis offset is not wanted. More than 40 sizes from 1″ × 3/4″ to 12″ × 8″ are available in SCH40.
Main Applications
- Size increase on pump discharge lines
- Size transitions in vertical risers
- Reducers at manifold ends
- Steam and condensate lines
- Size changes in fire lines
- Equipment connections on process lines
Technical Data
| Fitting type | Butt-weld concentric reducer |
|---|---|
| Material | Carbon steel, grade depending on model |
| Wall thickness | SCH40; SCH80 in a selected size (product range) |
| Size range | 1″ × 3/4″ – 12″ × 8″ (product range) |
| Example sizes | 2″ × 1″, 3″ × 2″, 4″ × 2 1/2″, 6″ × 4″, 8″ × 5″, 10″ × 8″ (product range) |
| Number of sizes | More than 40 (product range) |
| Connection | Butt weld |
| Working pressure | Depending on wall thickness and material grade |
Material Options
| Part | Carbon steel (standard wall) | Carbon steel (SCH40) | Stainless (AISI 304) |
|---|---|---|---|
| Body | Carbon steel, grade depending on model | Carbon steel, grade depending on model | AISI 304 stainless steel |
| Wall thickness | Pipe series standard wall (depending on model) | SCH40 | Depending on model |
| Surface | Black or oiled (depending on model) | Black or oiled (depending on model) | Uncoated stainless |
| Welding | Stick or TIG/MIG | Stick or TIG/MIG | Stainless electrode / TIG |
| Suitable media | Heating water, fire water, air | Steam, high-pressure lines | Food, chemicals, seawater |
Which material? A concentric reducer keeps the axes aligned; an eccentric reducer is preferred on horizontal pump suction lines to avoid air pockets.
Advantages
Axial Alignment
- Large and small pipes on the same axis
Smooth Flow
- The cone reduces turbulence
More Than 40 Sizes
- From 1″ to 12″
SCH40 Strength
- Suited to pressurised lines
Construction and Design Features
- Conical body with two weld ends of different sizes
- Coinciding axes
- Ends ready for butt welding
- SCH40 wall thickness
Send the large and small size and quantity; we will confirm the suitable concentric reducer from stock.
How to Choose?
- Measure both sizesDetermine the outside diameters of the large and small pipes.
- Choose the typeUse concentric on vertical lines and discharge sides, eccentric on horizontal suction.
- Match the wall thicknessChoose a reducer matching the pipe SCH value.
- Write the sizeUse the order large × small.
Complementary Products
Why ORFA?
Other Welded Carbon Steel Fittings
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Butt Weld Crosses
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Single-Side Threaded Nipples
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Details →Get a quote for your project
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