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ASME B16.20 Style BX Gasket

1. Drawing of Style BX Gasket

Drawing of Style BX Gasket

Drawing of Style BX Gasket

2. Dimensions of Style BX Gasket

Ring NumberNominal SizeOutside Diameter of Ring, ODHeight of Ring, HWidth of Ring, AOutside Diameter of Flat, ODTWidth of Flat, CHole Size, D [Note(1)]
BX-1504372.199.309.3070.877.981.5
BX-1514676.409.639.6375.038.261.5
BX-1525284.6810.2410.2483.248.791.5
BX-15365100.9411.3811.3899.319.781.5
BX-15478116.8412.4012.40115.0910.641.5
BX-155103147.9614.2214.22145.9512.221.5
BX-156179237.9218.6218.62235.2815.983.0
BX-157229294.4620.9820.98291.4918.013.0
BX-158279352.0423.1423.14348.7719.863.0
BX-159346426.7225.7025.70423.0922.073.0
BX-160346402.5923.8313.74399.2110.363.0
BX-161422491.4128.0716.21487.4512.243.0
BX-162422475.4914.2214.22473.4812.221.5
BX-163476556.1630.1017.37551.8913.113.0
BX-164476570.5630.1024.59566.2920.323.0
BX-165540624.7132.0318.49620.1913.973.0
BX-166540640.0332.0326.14635.5121.623.0
BX-167680759.3635.8613.11754.288.031.5
BX-168680765.2565.8616.05760.1710.971.5
BX-169130173.5115.8512.93171.2710.691.5
BX-170168218.0314.2214.22216.0312.221.5
BX-171218267.4414.2214.22265.4312.221.5
BX-172283333.0714.2214.22331.0612.221.5
BX-303762852.7537.9516.97847.3711.611.5

GENERAL NOTES:
(a) All dimensions are in millimeters.
(b) Radius, R, shall be 8% to 12% of the gasket height, H.
(c) Tolerances:
A = width of ring, +0.20, −0.00
Variation in width throughout the entire circumference of any ring shall not exceed 0.10 within these tolerances.
C = width of flat, +0.15, −0.00
D = hole size, ±0.5
H = height of ring, +0.20, −0.00
Variation in height throughout the entire circumference of any ring shall not exceed 0.10 within these tolerances.
OD = outside diameter of ring, +0.00, −0.15
ODT = outside diameter of flat, ±0.05
R = radius of ring [see General Note (b)]
23 deg p angle, ±0 deg 15 min.
NOTE:
(1) One pressure passage hole is required per gasket as illustrated. The centerline of the hole shall be located at the midpoint of
dimension C.

CATEGORY AND TAGS:

Technical

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