Sourced and supplied across Saudi Arabia
Flanges are ordered against four things at once: size, pressure class, facing and material — and the bolt circle must match the mating flange exactly, which is why the standard the other side was built to has to be stated. ASME B16.5 covers up to 24 inch and B16.47 takes over above that, with two incompatible series, so a large-bore order that does not name the series has a real chance of arriving unusable.
The more of this you send, the closer the first quotation lands.
| Nominal size | NPS or DN |
|---|---|
| Pressure class | ASME 150, 300, 600, 900, 1500, 2500 or PN rating |
| Standard | ASME B16.5, B16.47 Series A or B, or EN 1092-1 |
| Flange type | Weld neck, slip on, blind, socket weld, threaded, lap joint |
| Facing | Raised face, flat face, or ring type joint |
| Facing finish | Stock or serrated, e.g. 125-250 AARH |
| Material | A105, LF2 for low temperature, F316, F51 duplex |
| Bore and schedule | Required for weld neck flanges, matched to the pipe |
| Sour service | State if NACE MR0175 applies |
| Certification | EN 10204 3.1 or 3.2 material certificate if required |
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We source to specification. Send your requirement and we will come back with options, lead time and pricing.