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  • ANSI B16.47 Series B Class 300 Flanges

ANSI B16.47 Series B Class 300 Flanges

Series B 300 Weld Neck Flange

Series B 300 Blind Flange

ThicknessDrillingWeight
Nom SizeODWeld NeckBlindOD of RFDia at BaseBoreLTHDia BevelBolt CircleBolt LengthHoleDia# of HolesWeld NeckBlind
OCCRXBYA(1)(2)
2634.123.443.442927.625.6326.1931.6210.51.3832400907
2836.253.443.443129.755.8128.1933.7510.51.38364501023
30393.633.6333.25326.1630.2536.2511.251.5365501249
3241.54435.5346.5632.2538.5121.62326851556
3443.624437.536.126.7534.2540.62121.62367501719
3646.124439.75387.0636.2542.8812.51.75328401921
3848.124.314.3141.75407.538.2544.88131.75369152257
4050.124.54.543.88427.7540.2546.8813.51.75409902549
4252.54.634.634644842.3149141.883611352876
4454.54.944.944846.198.3844.315114.51.884012353304
4657.555.065048.388.6946.3153.751523614703766
4859.555.2552.2550.318.7548.3155.7515.2524015754183
5061.55.385.4454.2552.389.1950.3157.7515.7524417104629
5263.55.565.6156.2554.449.552.3159.751624818405096
5465.885.325.8158.2556.59.3854.3162.121624819805678
5669.566.1260.558.8110.556.316517.752.383625956642
5871.9466.3162.7560.9410.7558.3167.44182.384027707347
6073.945.886.56562.9410.6360.3169.44182.384028707980

Dimensions are in inches. Weights are in pounds.

(1)- Bolt lenghts are calculated based on bolting one WN to one Blind.
(2)- Bolt diameter should be 1/8″ less than the bolt hole diameter
Note:

Larger sizes as well as intermediate sizes can be furnished.
ANSI B16.47 Series B Class 300 Flange PDF (for printing).