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- Brake System[2]
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- Bolts[3]
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- Paper Product Making Machinery[3]
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- Other Pharmaceutical Machinery[2]
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- Wood Based Panels Machinery[1]
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- Flanges[10]
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- Valve Bodies[1]
- Valves[8]
- Serving Trays[1]
- Drill Bit[10]
- Trailer Parts[5]
- Contact Person : Ms. lin pei
- Company Name : Henan Broad Top Metalwork Co., Ltd.
- Tel : 86-0371-63658529-805
- Fax : 86-371-63653521
- Address : Henan,zheng zhou,NO.2 fengqing road,zhengzhou, china
- Country/Region : China
- Zip : 450000
High Quality ASTM SS 316L 12" Welding Neck Flange
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The details of 12" wn flange
Dimensions Weld Neck flanges and Stud bolts according to ASME B16.5| Pressure Class | 150 | 300 | 400 | 600 | 900 | 1500 | 2500 |
| Diameter - A | 365 | 375 | 375 | 400 | 420 | 451 | 441 |
| Diameter - D | 485 | 520 | 520 | 560 | 610 | 675 | 760 |
| Thickness - B | 30.231.8 | 49.350.9 | 57.263.4 | 66.773.1 | 79.485.8 | 123.9130.3 | 184.2190.6 |
| Diameter - G | 381 | 381 | 381 | 381 | 381 | 381 | 381 |
| Diameter - K | 431.8 | 450.8 | 450.8 | 489 | 533.4 | 571.5 | 619.1 |
| Height - H | 113114.6 | 129130.6 | 137143.4 | 156162.4 | 200206.4 | 283289.4 | 464470.4 |
| Bolt Holes | 12 | 16 | 16 | 20 | 20 | 16 | 12 |
| Diameter - L | 25.4 | 28.6 | 34.9 | 34.9 | 38.1 | 54 | 73 |
| Stud boltDia x Length | 7/8"120 | 1 1/8"170 | 1 1/4"205 | 1 1/4"220 | 1 3/8"255 | 2"375 | 2 3/4"540 |
DIMENSIONAL TOLERANCES WELDING NECK FLANGES ACC. TO ASME B16.5
Outside Diameter ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm | Inside Diameter ≤ 10 = ± 0.8 mm | 12 thru 18 = 1.6 mm | ≥ 20 = + 3.2 mm / - 1.6 mm |
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm | Diameter of Hub at Base ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm |
Diameter of Hub at Point of Welding ≤ 5 = + 2.4 mm / - 0.8 mm | ≥ 6 = + 4.0 mm / - 0.8 mm | Drilling Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max. |
Thickness ≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0 | Length thru Hub ≤ 10 = 1.6 mm | ≥ 12 = ± 3.2 mm |
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High Quality ASTM SS 316L 12" Welding Neck Flange
