DIMENSIONS CHART FOR METALLIC TYPE RX RING GASKET


RX ring gasket dimensions chart per ASME B16.20. RX gaskets shall have a surface finish not rougher than 1.6 μm (63 μin) roughness.


Type RX Ring Type Metallic Gasket Dimensions

Type RX Ring Gasket Dimensions and Tolerances (mm)
R
No
OD A C D H R1 E
RX-20  76.20 8.74 4.62 3.18 19.05 1.5 -
RX-23 93.27 11.91 6.45 4.24 25.40 1.5 -
RX-24 105.97 11.91 6.45 4.24 25.40 1.5 -
RX-25 109.55 8.74 4.62 3.18 19.05 1.5 -
RX-26 111.91 11.91 6.45 4.24 25.40 1.5 -
RX-27 118.26 11.91 6.45 4.24 25.40 1.5 -
RX-31 134.54 11.91 6.45 4.24 25.40 1.5 -
RX-35 147.24 11.91 6.45 4.24 25.40 1.5 -
RX-37 159.94 11.91 6.45 4.24 25.40 1.5 -
RX-39 172.64 11.91 6.45 4.24 25.40 1.5 -
R
No
OD A C D H R1 E
RX-41 191.69 11.91 6.45 4.24 25.40 1.5 -
RX-44 204.39 11.91 6.45 4.24 25.40 1.5 -
RX-45 221.84 11.91 6.45 4.24 25.40 1.5 -
RX-46 222.25 13.49 6.68 4.78 28.58 1.5 -
RX-47 245.26 19.84 10.34 6.88 41.28 2.3 -
RX-49 280.59 11.91 6.45 4.24 25.40 1.5 -
RX-50 283.36 16.66 8.51 5.28 31.75 1.5 -
RX-53 334.57 11.91 6.45 4.24 25.40 1.5 -
RX-54 337.34 16.66 8.51 5.28 31.75 1.5 -
RX-57 391.72 11.91 6.45 4.24 25.40 1.5 -
R
No
OD A C D H R1 E
RX-63 441.73 27.00 14.78 8.46 50.80 2.3 -
RX-65 480.62 11.91 6.45 4.24 25.40 1.5 -
RX-66 457.99 16.66 8.51 5.28 31.75 1.5 -
RX-69 544.12 11.91 6.45 4.24 25.40 1.5 -
RX-70 550.06 19.84 10.34 6.88 41.28 2.3 -
RX-73 596.11 13.49 6.68 5.28 31.75 1.5 -
RX-74 600.86 19.84 10.34 6.88 41.28 2.3 -
RX-82 67.87 11.91 6.45 4.24 25.40 1.5 1.5
RX-84 74.22 11.91 6.45 4.24 25.40 1.5 1.5
RX-85 90.09 13.49 6.68 4.24 25.40 1.5 1.5
R
No
OD A C D H R1 E
RX-86 103.58 15.09 8.51 4.78 28.58 1.5 2.3
RX-87 113.11 15.09 8.51 4.78 28.58 1.5 2.3
RX-88 139.29 17.48 10.34 5.28 31.75 1.5 3.0
RX-89 129.77 18.26 10.34 5.28 31.75 1.5 3.0
RX-90 174.63 19.84 12.17 7.42 44.45 2.3 3.0
RX-91 286.94 30.18 19.81 7.54 45.24 2.3 3.0
RX-99 245.67 11.91 6.45 4.24 25.40 1.5 -
RX-201 51.46 5.74 3.20 1.45 11.30 0.5 -
RX-205 62.31 5.56 3.05 1.83 11.10 0.5 -
RX-210 97.64 9.53 5.41 3.18 19.05 0.8 -
RX-215 140.89 11.91 5.33 4.24 25.40 1.5 -
R
No
OD A C D H R1 E

Notes:

R No - Ring Number, OD - Outer Diameter of Ring, A - Width of Ring, C - Width of Flat, D - Height of Outside Bevel, H- Height of Ring,  R1 - Radius in Octagonal Ring, E - Holse Size



Tolerances:

OD - +0.51, -0.00
A - +0.20,  -0.00
C - +0.15,  -0.00
D - +0.0, -0.76
H - +0.20, -0.00
R1 - ±0.5,
23 deg angle -  ±0 deg 30 min
E - ±0.5

Reference:

  • ASME B16.20-2007, Metallic Gaskets for Pipe Flanges Ring-Joint, Spiral-Wound, and Jacketed