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12 300# 1/8 Viton 70 Durometer +/- 5 Ring Gasket

Selected Viton Ring GasketViton Ring Gasket
Viton Ring GasketViton Ring Gasket

Product Specification

Pipe Diameter
12
Flange Rating
300#
Full Face or Ring
Ring
Inside Diameter
12.7500
Outside Diameter
16.6250
Thickness
1/8
Sheet Material
Viton 70 Duro
Material
Viton
Country of Origin
Unrestricted Origin
Weight
0.726702

Dimensional Specifications

Per ASME B16.21-2016
  Pipe Diameter
1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6 8 10 12 14 16 18 20 24
Inside Diameter 0.84 1.06 1.31 1.66 2.38 2.38 2.88 3.50 4.00 4.50 5.56 6.63 8.63 10.75 12.75 14.00 16.00 18.00 20.00 24.00
Outside
Diameter
per Class
150# 1.88 2.25 2.62 3.00 3.38 4.12 4.88 5.38 6.38 6.88 7.75 8.75 11.00 13.38 16.13 17.75 20.25 21.62 23.88 28.25
300# 2.12 2.62 2.88 3.25 3.75 4.38 5.12 5.88 6.50 7.12 8.50 9.88 12.12 14.25 16.62 19.12 21.25 23.50 25.75 30.50
600# 2.12 2.62 2.88 3.25 3.75 4.38 5.12 5.88 6.38 7.62 9.50 10.50 12.62 15.75 18.00 19.38 22.25 24.12 26.88 31.12
Per ASME B16.47-2017
Series A Pipe Diameter
26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60
Inside Diameter 26.00 28.00 30.00 32.00 34.00 36.00 38.00 40.00 42.00 44.00 46.00 48.00 50.00 52.00 54.00 56.00 58.00 60.00
Outside
Diameter
per Class
150# 30.50 32.75 34.75 37.00 39.00 41.25 43.75 45.75 48.00 50.25 52.25 54.50 56.50 58.75 61.00 63.25 65.50 67.50
300# 32.88 35.38 37.50 39.62 41.62 44.00 41.50 43.88 45.88 48.00 50.12 52.12 54.25 56.25 58.75 60.75 62.75 64.75
600# 34.12 36.00 38.25 40.25 42.25 44.50 43.50 45.50 48.00 50.00 52.26 54.75 57.00 59.00 61.25 63.50 65.50 67.75
Per ASME B16.47-2017
Series B Pipe Diameter
26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60
Inside Diameter 26.00 28.00 30.00 32.00 34.00 36.00 38.00 40.00 42.00 44.00 46.00 48.00 50.00 52.00 54.00 56.00 58.00 60.00
Outside
Diameter
per Class
150# 28.56 30.56 32.56 34.69 36.81 38.88 41.12 43.12 45.12 47.12 49.44 51.44 53.44 55.44 57.62 59.62 62.19 64.19
300# 30.38 32.50 34.88 37.00 39.12 41.25 43.25 45.25 47.25 49.25 51.88 53.88 55.88 57.88 61.25 62.75 65.19 67.12
600# 30.12 32.25 34.62 36.75 39.25 41.25                        
  1. All dimensions are in inches.

Governing Standards

ASME B16.21 Covers types, sizes, materials, dimensions, tolerances, and markings for nonmetallic flat gaskets.
ASME B16.47 Covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60. Included are flanges with rating class designations 75, 150, 300, 400, 600, and 900 with requirements given in both SI (Metric) and U. S. Customary units, with diameter of bolts and flange bolt hole expressed in inch units.
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