British Standard BS 10 : 1962 - Specification for Flanges and Bolting for Pipes, Valves, and Fittings. This covers plain, boss, integrally cast or forged, and welding neck type flanges, in ten tables. Although BS 10 is obsolescent, it remains in use for the dimensions of light duty, economy stainless steel flanges in applications where corrosion resistance and/or hygiene, rather than high pressures and temperatures, are the primary considerations. The following tables detail the applicable standard dimensions from Tables D, E, F and H of BS 10. |
Flange Dimensions & Approximate Masses |
BRITISH BS 10 TABLE E FLANGE SPECIFICATION | N.B. SIZE | D | K | L | A | C | N1 | N2 | B | H1 | H2 | R1 | R2 | HOLES | IN | mm | | | | | | | | | | | | | | ½" | 15 | 95.3 | 66.8 | 14.5 | 21.3 | 6.4 | 27.0 | 33.3 | 22.4 | 9.5 | 22.2 | 6.4 | 1.6 | 4 | ¾" | 20 | 101.6 | 73.2 | 14.5 | 26.7 | 6.4 | 33.3 | 38.1 | 27.7 | 11.1 | 22.2 | 6.4 | 1.6 | 4 | 1" | 25 | 114.3 | 82.6 | 14.5 | 33.5 | 7.2 | 42.9 | 47.6 | 34.6 | 11.1 | 22.2 | 6.4 | 1.6 | 4 | 1 ¼" | 32 | 120.7 | 87.4 | 14.5 | 42.2 | 7.9 | 49.2 | 55.6 | 43.2 | 11.1 | 25.4 | 6.4 | 1.6 | 4 | 1 ½" | 40 | 133.4 | 98.6 | 14.5 | 48.3 | 8.7 | 58.7 | 61.9 | 49.5 | 12.7 | 28.6 | 6.4 | 1.6 | 4 | 2" | 50 | 152.4 | 114.3 | 17.5 | 60.5 | 9.5 | 69.9 | 74.6 | 62.0 | 12.7 | 28.6 | 6.4 | 1.6 | 4 | 2 ½" | 65 | 165.1 | 127.0 | 17.5 | 73.2 | 10.3 | 82.6 | 90.5 | 74.7 | 15.9 | 31.8 | 6.4 | 1.6 | 4 | 3" | 80 | 184.2 | 146.1 | 17.5 | 88.9 | 11.1 | 101.6 | 106.4 | 90.7 | 15.9 | 34.9 | 6.4 | 1.6 | 4 | 3 ½" | 88 | 203.2 | 165.1 | 17.5 | 101.6 | 11.9 | 114.3 | 119.1 | 103.4 | 17.5 | 34.9 | 6.4 | 1.6 | 4 | 4" | 100 | 215.9 | 177.8 | 17.5 | 114.3 | 12.7 | 130.2 | 133.4 | 116.1 | 19.1 | 41.3 | 9.5 | 3.2 | 4 | 5" | 125 | 254.0 | 209.6 | 17.5 | 141.2 | 14.3 | 152.4 | 160.3 | 143.8 | 19.1 | 44.5 | 9.5 | 3.2 | 8 | 6" | 150 | 279.4 | 235.0 | 17.5 | 168.4 | 17.5 | 184.2 | 185.7 | 171.7 | 19.1 | 47.6 | 9.5 | 3.2 | 8 | 8" | 200 | 336.6 | 292.1 | 17.5 | 219.2 | 19.1 | 241.3 | 241.3 | 221.5 | 22.2 | 50.8 | 9.5 | 3.2 | 8 | 10" | 250 | 406.4 | 355.6 | 22.2 | 273.1 | 22.2 | 292.1 | 298.5 | 276.4 | 27.0 | 63.5 | 9.5 | 3.2 | 8 | 12" | 300 | 457.2 | 406.4 | 22.2 | 323.9 | 25.4 | 342.9 | 349.3 | 325.9 | 28.6 | 69.9 | 9.5 | 4.8 | 12 | 14" | 350 | 527.1 | 469.9 | 25.4 | 355.6 | 28.6 | 406.4 | - | 359.2 | - | 73.0 | 9.5 | 4.8 | 12 | 16" | 400 | 577.9 | 520.7 | 25.4 | 406.4 | 31.8 | 431.8 | - | 410.5 | - | - | - | - | 12 | 18" | 450 | 641.4 | 584.2 | 25.4 | 457.2 | 34.9 | - | - | 461.8 | - | - | - | - | 12 | 20" | 500 | 704.9 | 641.4 | 25.4 | 508.0 | 38.1 | - | - | 513.1 | - | - | - | - | 16 | 24" | 600 | 825.5 | 755.7 | 28.7 | 609.6 | 47.6 | - | - | 616.0 | - | - | - | - | 16 |
| Production Capacity & Purchase Details. | | | 1. | Supply Flange Dimension DN15 - DN2000 (1/2" - 80"), Forged Flange. | 2. | Material Carbon Steel: ASTM A105, S235JR, C22.8, RST37.2, ST37, P245GH, P250GH, ASTM A181, Q235 | 3. | Material Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 etc. | 4. | Flanges Anti Rust: Anti Rust Oil, Black Paint, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized etc. | 5. | Monthly Output: 3000 tons per Month. | 6. | Delivery Terms: CIF, CFR, FOB, EXW. | 7. | Payment Terms: Wire Transfer (T/T), Irrevocable L/C at Sight etc. | 8. | Minimum Order Quantity: 1Ton or 100Pcs. | 9. | Quality Guarantee: EN10204 3.1 Certificate, Mill Certificate, Third Party Inspection, Free Replacement Service. | 10. | Find More Requirements In Flanges Market. |
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