1 in (25 mm) Screwed Forged Flange, BS10 Table H | SFH25
Available
This AAP screwed forged flange is made from forged steel to BS10 Table H (manufacturer-stated). It is supplied in 6 sizes from 3/4 in (20 mm) to 3 in (80 mm).
A screwed flange is threaded to suit threaded pipe, so it can be fitted without welding. 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-pressure table for carbon steel flanges rates Table H at 3,500 kPa (35 bar) from -50 to 232 °C, stepping down as temperature rises above 232 °C, with a maximum hydrostatic test pressure of 5,250 kPa. That table is headed for plate flanges, so confirm the rating with AIMS if your duty is close to the limit.
Where this product is used
- Threaded pipework where welding is not practical
- Connecting threaded pipe to flanged valves, pumps and fittings
- Maintenance and repair work on threaded lines
- Oil, gas, petrochemical and mining pipework
Features
- 6 sizes from 3/4 in (20 mm) to 3 in (80 mm)
- Made to BS10 Table H (manufacturer-stated)
- Material: forged steel
- Table H rating 3,500 kPa (35 bar) from -50 to 232 °C, per the manufacturer
- Threaded bore, no welding needed
- Marked where possible with heat number, size, table, grade and dimensional standard
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Flange type | Screwed forged flange |
| Standard (manufacturer-stated) | BS10 Table H |
| Material | Forged steel |
| Connection | Screwed (threaded) |
| Sizes | 3/4 in (20 mm) to 3 in (80 mm) (6 sizes) |
| Rating (AAP carbon steel flange table) | 3,500 kPa (35 bar) from -50 to 232 °C |
| Maximum hydrostatic test pressure | 5,250 kPa (52.5 bar) |
| Marking | Where possible: heat number, size, table, grade and dimensional standard |
Options and part numbers
| Size | Part number | OD (mm) | PCD (mm) | Holes | Bolt size | Thickness (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 3/4 in (20 mm) | SFH20 | 114.3 | 82.6 | 4 x 18 mm | M16 | 12.7 | 1.1 |
| 1 in (25 mm) | SFH25 | 120.7 | 87.3 | 4 x 18 mm | M16 | 14.3 | 1.2 |
| 1-1/4 in (32 mm) | SFH32 | 133.4 | 98.4 | 4 x 18 mm | M16 | 17.5 | 1.8 |
| 1-1/2 in (40 mm) | SFH40 | 139.7 | 104.8 | 4 x 18 mm | M16 | 17.5 | 1.9 |
| 2 in (50 mm) | SFH50 | 165.1 | 127 | 4 x 18 mm | M16 | 19 | 3 |
| 3 in (80 mm) | SFH80 | 203.2 | 165.1 | 8 x 18 mm | M16 | 22.2 | 5.1 |
Selecting the right option
Check the thread form on your pipe or fitting before ordering. AAP's catalogue does not state the thread form for this range, so confirm it with AIMS. 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 Slip-On Forged Flange, BS10 Table H, AAP Screwed Forged Flange, BS10 Table D, Galvanised, AAP Screwed Forged Flange, BS10 Table E and AAP Slip-On Forged Flange 4 in (100 mm), BS10 Table D.
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1"
Model Number: SFH25
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1-1/4"
Model Number: SFH32
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1-1/2"
Model Number: SFH40
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2"
Model Number: SFH50
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3/4"
Model Number: SFH20
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3"
Model Number: SFH80
