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Concentric Reducer
Seamless Concentric Reducers according ASME B16.9 are often used in installations, piping systems or equipment construction. Nijhuis & Wigger can supply suitable Concentric Reducers for every quality, pipe size and wall thickness.
- Dimensions up to 12”
- Different wall thicknesses available according ASME B 36.10 / 36.19 or specification
- Multiple material grades in stock
- Stock item (see stock programme in downloads)
We deliver Concentric Reducers in the following material grades:
| ASME standard |
| Carbon steel |
| A234 WPB |
| A420 WPL6 |
| A234 WP5/WP11/WP22 |
| Stainless steel |
| A403 WP316L |
| A403 WP304L |
| A403 F321H |
| F51(Duplex) / F53(Superduplex) |
| Special Alloys |
| Hastelloy C276/C22 |
According to the ASME standard Concentric Reducers are separated in:
| ASME standard |
| B16.9 |
| B16.9 |
Click on one of the PDF logos to start the download.
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Schedule sizes |
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Stock programme |
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Delivery programme |
More fittings according ASME B16.9
Require matching flanges?
We have an extensive stock of flanges for various applications and suitable for Concentric Reducers.
Go to flanges