Nom pipe
Size
ODNOMINAL BORE
Sch10Sch20Sch30STD WallSch40Sch60EXT HvySch80Sch100Sch120Sch140Sch160XX Hvy
1/20.8400.6740.6220.6220.5460.5460.4640.252
3/41.0500.8840.8240.8240.7420.7420.6120.434
11.3151.0971.0491.0490.9570.9570.8150.599
1 1/41.6601.4421.3801.3801.2781.2781.1600.896
1 1/21.9001.6821.6101.6101.5001.5001.3381.100
22.3752.1572.0672.0671.9391.9391.6871.503
2 1/22.8752.6352.4692.4692.3232.3232.1251.771
33.5003.2603.0683.0682.9002.9002.6242.300
3 1/24.0003.7603.5483.5483.3643.3642.728
44.5004.2604.0264.0263.8263.8263.6243.4383.152
55.5635.2955.0475.0474.8134.8134.5634.3134.063
66.6256.3576.0656.0655.7615.7615.5015.1874.897
88.6258.3298.1258.0717.9817.9817.8137.6257.6257.4377.1877.0016.8136.875
1010.75010.42010.25010.13610.02010.0209.7509.7509.5629.3129.0628.7508.5008.750
1212.75012.39012.25012.09012.00011.93811.62611.75011.37411.06210.75010.50010.12610.750
1414.00013.50013.37613.25013.25013.12412.81213.00012.50012.12411.81211.50011.188
1616.00015.50015.37615.25015.25015.00014.68815.00014.31213.93813.56213.12412.812
1818.00017.50017.37617.12417.25016.87616.50017.00016.12415.68815.25014.87614.438
2020.00019.50019.25019.00019.25018.81218.37619.00017.93817.43817.00016.50016.062
2222.00021.50021.25021.000
2424.00023.50023.25022.87623.25022.62422.06223.00021.56220.93820.37619.87619.312
2626.00025.25025.000
3030.00029.37629.00028.75029.25029.000
3636.00035.37635.00034.75035.25034.50035.000
4040.00039.25039.000
4242.00041.25041.000
4848.00047.25047.000

dimensions are in inches
(1) Source: ANSI B36.10
(2) These dimensions are the same for the inside pipe diameter. ALWAYS specify bore when ordering
(3) Other types, sizes, and thicknesses of flanges can be provided to meet application
(4) Stocked and manufactured in carbon steel, stainless steel, and a variety of other metals and alloys
(5) Flange Wall Thickness


Lewis Liu

Hello, I am Lewis Liu, a professional sales engineer with over ten years of experience in the flange fittings industry. I am highly knowledgeable in flange selection, installation, and maintenance. I am passionate about providing customers with the best solutions to ensure their pipeline systems run smoothly, safely, and reliably.

If you have any questions or concerns regarding flange fittings for your pipelines, whether it’s about selection, material choice, specification requirements, or any other aspect, please feel free to contact me at any time. I am committed to offering professional advice and assistance to help you make informed decisions and meet your needs.

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