2 in (50 mm) Weld Neck Flange XS, ANSI B16.5 Class 150 | PFW50X
Available
This AAP XS weld neck flange is made from carbon steel to ANSI B16.5 Class 150 (manufacturer-stated). It is supplied in 6 sizes from 2 in (50 mm) to 8 in (200 mm).
A weld neck flange has a long tapered hub that is butt welded to the pipe, which passes load smoothly into the pipe wall. It is the usual choice where pressure, temperature or cyclic loading is higher. The XS version is bored for extra strong (heavy wall) pipe. AAP describes forged steel flanges as commonly specified in the oil, gas, petrochemical and mining sectors, where pressure, temperature and safety considerations are higher. They are hot forged and then machined.
AAP's temperature and pressure table for ASTM A105 flanges lists a maximum working pressure of 1,960 kPa (19.6 bar) for Class 150 from -29 to 38 °C, falling to 560 kPa (5.6 bar) at 425 °C. AAP notes that A105 forgings are not recommended for prolonged use above 427 °C.
Where this product is used
- Pipework with higher pressure, temperature or cyclic loading
- Joints to flanged valves, pumps and vessels where a butt weld is specified
- Connections to pressure vessel and equipment nozzles
- Oil, gas, petrochemical and mining pipework
Features
- 6 sizes from 2 in (50 mm) to 8 in (200 mm)
- Made to ANSI B16.5 Class 150 (manufacturer-stated)
- Material: carbon steel (AAP quotes ratings for ASTM A105 forgings)
- Raised face, 1.6 mm raised face height
- Maximum working pressure 1,960 kPa (19.6 bar) up to 38 °C, per the manufacturer
- Tapered hub for extra strong pipe, butt welded to the pipe
- Marked where possible with heat number, size, table, grade and dimensional standard
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Flange type | XS weld neck flange |
| Standard (manufacturer-stated) | ANSI B16.5 Class 150 |
| Material | Carbon steel (AAP quotes ratings for ASTM A105 forgings) |
| Face | Raised face, 1.6 mm raised face height |
| Connection | Weld neck for extra strong pipe, butt welded |
| Sizes | 2 in (50 mm) to 8 in (200 mm) (6 sizes) |
| Maximum working pressure | 1,960 kPa (19.6 bar) at -29 to 38 °C |
| Marking | Where possible: heat number, size, table, grade and dimensional standard |
Options and part numbers
| Size | Part number | OD (mm) | PCD (mm) | Bore (mm) | Holes | Bolt size | Thickness (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 2 in (50 mm) | PFW50X | 152.5 | 120.6 | 49.3 | 4 x 20 mm | 5/8 in | 19.1 | 2.7 |
| 2-1/2 in (65 mm) | PFW65X | 177.9 | 139.7 | 59 | 4 x 20 mm | 5/8 in | 22.3 | 4.6 |
| 3 in (80 mm) | PFW80X | 190.6 | 152.4 | 73.7 | 4 x 20 mm | 5/8 in | 23.8 | 5.2 |
| 4 in (100 mm) | PFW94X | 228.7 | 190.5 | 97.2 | 8 x 20 mm | 5/8 in | 23.8 | 7.8 |
| 6 in (150 mm) | PFW96X | 279.5 | 241.3 | 146.3 | 8 x 22 mm | 3/4 in | 25.5 | 12.5 |
| 8 in (200 mm) | PFW98X | 343 | 298.4 | 193.7 | 8 x 22 mm | 3/4 in | 28.6 | 19.9 |
Selecting the right option
Confirm the pipe wall thickness before ordering, because the weld neck bore is matched to the pipe schedule (this XS version is for extra strong pipe). Match the standard and table or class to the mating flange and compare the drilling dimensions listed on this page, because flanges made to different standards are not interchangeable. Gaskets and bolting are not part of this listing. If you are not sure what suits, contact AIMS with the standard and size of the mating flange.
Related products
See also AAP Blind Flange, ANSI B16.5 Class 150, AAP Slip-On Weld Flange, ANSI B16.5 Class 150, AAP Weld Neck Flange, ANSI B16.5 Class 150, AAP Blind Flange, ANSI B16.5 Class 300, AAP Insertion Gasket - Compressed Fiber Ring and AAP Insertion Gasket - Spiral Wound.
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2"
Model Number: PFW50X
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2-1/2"
Model Number: PFW65X
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3"
Model Number: PFW80X
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4"
Model Number: PFW94X
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6"
Model Number: PFW96X
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8"
Model Number: PFW98X
