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Lap Joint flange
Lap Joint flanges according ASME B16.5 are often used in installations, piping systems or in equipment construction to weld on a pipe. Nijhuis & Wigger can supply suitable Lap Joint flanges for every quality, pipe size and pressure class.
- Available pressure classes: 150 lbs - 2500 lbs
- Dimensions up to 24”
- Different sealing surfaces available like FF or according specification
- Stock item (see stock programme in downloads)
We deliver Lap Joint flanges in the following material grades:
| ASME standard |
| Carbon steel |
| A/SA105N / C21, P265GH |
| A/SA350 LF2 / P355QH1 |
| A/SA182 Gr. F1,F5,F9,F11,F12,F22,F91. |
| A694 Gr. F52,F60,F65,F70 |
| Stainless steel |
| A/SA182Gr. 304/304L |
| A/SA182Gr. 316/316L |
| A/SA182 F321(H) |
| F51(Duplex) / F53(Superduplex) |
| Special Alloys |
| Hastelloy C276/C22 |
According to the ASME standard Lap Joint flanges are separated in:
| ASME standard | Pressure class |
| B16.5 - B16.47 A/B | 150 lbs |
| B16.5 - B16.47 A/B | 300 lbs |
| B16.5 - B16.47 A/B | 400 lbs |
| B16.5 - B16.47 A/B | 600 lbs |
| B16.5 - B16.47 A/B | 900 lbs |
| B16.5 - B16.47 A/B | 1500 lbs |
| B16.5 - B16.47 A/B | 2500 lbs |
Click on one of the PDF logos to start the download.
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Stock programme |
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Delivery programme |
Machining Lap Joint flanges
according standard or specificationLap Joint flanges can be machined in several ways. For example machining out of Slip On flanges or galvanizing.
View options
Custom made flanges
It is also possible to manufacture special flanges according to your wishes and drawings. Our sales team is happy to
assist you.
