EO Flanges can provide ASME B16.47 Class 300 Series A Welding Neck Flanges, which Outside Diameter from 38.25 to 71.25 in, Minimum Thickness from 3.12 to 6.44 in, Raised Face Diameter from 29.5 to 64 in. etc. We are a leading manufacturer in flanges and pipe fittings in China and our products have been exported to customers all over the world, such as Korea, Russia, countries and regions in Middle East, Southeast Asia, South America and WEST Europe. The flanges and the pipe fittings collection in the most standard and material.
We think the quality is the soul of an enterprise, so we put the quality as the first consideration.
So if you are interested in our products, please don’t hesitate to contact us and it will very appreciate to get news from you soon.
ASME B16.47 Class 300 Series A Welding Neck Flanges
Nominal Pipe SizeOutside Diameter (O)Minimum Thickness (T)Raised Face Diameter (R)Length Thru Hub (Y)Hub Diameter (X)Minimum Fillet Radius (r)Top of Hub (A)Bore (B)Approximate Weight (lbs)Bolt Circle (C)Number of HolesDiameter of Holes
2638.253.1229.57.2528.380.3826Specified by purchaser60534.5281.75
2840.753.3831.57.7530.50.4428Specified by purchaser74537281.75
30433.6233.758.2532.560.4430Specified by purchaser87039.25281.88
3245.253.88368.7534.690.4432Specified by purchaser100541.5282
3447.54389.1236.880.534Specified by purchaser114543.5282
36504.1240.259.5390.536Specified by purchaser127546322.12
38464.2540.57.1239.120.538Specified by purchaser69543321.62
4048.754.542.757.6241.250.540Specified by purchaser84045.5321.75
4250.754.6944.757.8843.250.542Specified by purchaser95047.5321.75
4453.254.88478.1245.250.544Specified by purchaser105549.75321.88
4655.755.06498.547.380.546Specified by purchaser123552282
4857.755.2551.258.8149.380.548Specified by purchaser138054322
5060.255.553.59.1251.380.550Specified by purchaser153056.25322.12
5262.255.6955.59.3853.380.552Specified by purchaser166058.25322.12
5465.25657.759.9455.50.554Specified by purchaser205061282.38
5667.256.0659.7510.2557.620.556Specified by purchaser215563282.38
5869.256.256210.559.620.558Specified by purchaser227065322.38
6071.256.446410.7561.620.560Specified by purchaser247067322.38
Customized ASME B16.47 Flanges Series A