ASME B16.47 Series A · ASTM A105 · stock and made to order
54″ Class 150 Blind Flange — ASME B16.47 Series A
54″ Class 150 blind flange to ASME B16.47 Series A, machined from ASTM A105. Outside diameter 1683 mm, thickness 119.1 mm, 44 bolt holes on a 1593.8 mm circle, approximate weight 2103 kg. Available with raised face, flat face or the facing specified on your drawing.
Size
54″ / DN1350
Standard
ASME B16.47 Series A (ASME B16.47-2025, Series A)
Pressure rating
Class 150
Outside diameter
1683 mm (66.26″)
Thickness
119.1 mm (4.69″)
Bolt circle
1593.8 mm (62.75″)
Approx. weight
2103 kg
Full dimensions — 54″ Class 150
| Size | DN | OD | Thickness | RF Ø | Bolt circle | Bolts | Weight | |
|---|---|---|---|---|---|---|---|---|
| 26″ | 650 | 870 mm (34.25″) | 66.8 mm (2.63″) | 749 mm (29.49″) | 806.4 mm (31.75″) | 24 × Ø34.9 mm (1.37″) | 318 kg | Details → |
| 28″ | 700 | 927 mm (36.5″) | 69.8 mm (2.75″) | 800 mm (31.5″) | 863.6 mm (34″) | 28 × Ø34.9 mm (1.37″) | 378 kg | Details → |
| 30″ | 750 | 984 mm (38.74″) | 73.2 mm (2.88″) | 857 mm (33.74″) | 914.4 mm (36″) | 28 × Ø34.9 mm (1.37″) | 445 kg | Details → |
| 32″ | 800 | 1060 mm (41.73″) | 79.5 mm (3.13″) | 914 mm (35.98″) | 977.9 mm (38.5″) | 28 × Ø41.3 mm (1.63″) | 562 kg | Details → |
| 34″ | 850 | 1111 mm (43.74″) | 81 mm (3.19″) | 965 mm (37.99″) | 1028.7 mm (40.5″) | 32 × Ø41.3 mm (1.63″) | 628 kg | Details → |
| 36″ | 900 | 1168 mm (45.98″) | 88.9 mm (3.5″) | 1022 mm (40.24″) | 1085.8 mm (42.75″) | 32 × Ø41.3 mm (1.63″) | 760 kg | Details → |
| 38″ | 950 | 1238 mm (48.74″) | 85.9 mm (3.38″) | 1073 mm (42.24″) | 1149.4 mm (45.25″) | 32 × Ø41.3 mm (1.63″) | 825 kg | Details → |
| 40″ | 1000 | 1289 mm (50.75″) | 88.9 mm (3.5″) | 1124 mm (44.25″) | 1200.2 mm (47.25″) | 36 × Ø41.3 mm (1.63″) | 925 kg | Details → |
| 42″ | 1050 | 1346 mm (52.99″) | 95.2 mm (3.75″) | 1194 mm (47.01″) | 1257.3 mm (49.5″) | 36 × Ø41.3 mm (1.63″) | 1080 kg | Details → |
| 44″ | 1100 | 1403 mm (55.24″) | 100.1 mm (3.94″) | 1245 mm (49.02″) | 1314.4 mm (51.75″) | 40 × Ø41.3 mm (1.63″) | 1232 kg | Details → |
| 46″ | 1150 | 1454 mm (57.24″) | 101.6 mm (4″) | 1295 mm (50.98″) | 1365.2 mm (53.75″) | 40 × Ø41.3 mm (1.63″) | 1343 kg | Details → |
| 48″ | 1200 | 1511 mm (59.49″) | 106.4 mm (4.19″) | 1359 mm (53.5″) | 1422.4 mm (56″) | 44 × Ø41.3 mm (1.63″) | 1520 kg | Details → |
| 50″ | 1250 | 1568 mm (61.73″) | 109.7 mm (4.32″) | 1410 mm (55.51″) | 1479.6 mm (58.25″) | 44 × Ø47.6 mm (1.87″) | 1686 kg | Details → |
| 52″ | 1300 | 1626 mm (64.02″) | 114.3 mm (4.5″) | 1461 mm (57.52″) | 1536.7 mm (60.5″) | 44 × Ø47.6 mm (1.87″) | 1885 kg | Details → |
| 54″ (this size) | 1350 | 1683 mm (66.26″) | 119.1 mm (4.69″) | 1511 mm (59.49″) | 1593.8 mm (62.75″) | 44 × Ø47.6 mm (1.87″) | 2103 kg | Details → |
| 56″ | 1400 | 1746 mm (68.74″) | 122.4 mm (4.82″) | 1575 mm (62.01″) | 1651 mm (65″) | 48 × Ø47.6 mm (1.87″) | 2327 kg | Details → |
| 58″ | 1450 | 1803 mm (70.98″) | 127 mm (5″) | 1626 mm (64.02″) | 1708.2 mm (67.25″) | 48 × Ø47.6 mm (1.87″) | 2574 kg | Details → |
| 60″ | 1500 | 1854 mm (72.99″) | 130.3 mm (5.13″) | 1676 mm (65.98″) | 1759 mm (69.25″) | 52 × Ø47.6 mm (1.87″) | 2792 kg | Details → |
Published ASME B16.47 Series A dimensions for every Class 150 size in this product family.
Dimensions in millimetres; the inch equivalent is shown in brackets. Bolt hole diameter applies to through-holes. For stud length, gasket and bolting selection, match the gasket and bolts to B16.47 A.
What Class 150 means in service
Series A follows the former MSS SP-44 dimensions. Ratings are ASME classes 150, 300, 400, 600 and 900, with allowable pressures read from the B16.47 pressure–temperature tables for the material group and design temperature.
Series A follows the former MSS SP-44 dimensions. Ratings are ASME classes 150, 300, 400, 600 and 900, with allowable pressures read from the B16.47 pressure–temperature tables for the material group and design temperature.
Facing and materials
Raised face (RF) is standard: 1.5 mm high for Classes 75, 150 and 300; 6.4 mm for Classes 400, 600 and 900. Flat face (FF) and ring-type joint (RTJ) faces are available against the drawing.
- ASTM A105 / A105N
- ASTM A350 LF2
- ASTM A182 F304/F316L
- ASTM A694 F52/F60/F65
- ASTM A182 F51/F53
Other grades, impact-tested heats and NACE MR0175 requirements are quoted on request. Material certificates to EN 10204 3.1 are issued against the same heat number as the dimensional report.
Inspection and delivery
- Dimensional inspection against the B16.47 A table for 54″ Class 150
- Heat number stamped on the rim; EN 10204 3.1 certificate issued
- PMI on stainless and alloy heats; UT/RT on request
- Anti-rust oil, plywood case or pallet, with packing list and MTC
- Typical lead time 7–15 days for carbon steel stock sizes, 20–30 days for alloys
Other sizes in Class 150
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54″ Class 150 Blind Flange
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