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20 300# 1/8 Teadit 24Sh Expanded Ptfe Full Face Gasket

Selected Teadit 24SH 100% Expanded PTFE Full Face GasketTeadit 24SH Full Face Gasket
Teadit 24SH 100% Expanded PTFE Full Face GasketTeadit 24SH Full Face Gasket

Product Specification

Pipe Diameter
20
Flange Rating
300#
Full Face or Ring
Full Face
Inside Diameter
20.0000
Outside Diameter
30.5000
Thickness
1/8
Sheet Material
Teadit 24SH
Bolt Hole Circle
27.000
# of Bolt Holes
24
Bolt Hole Diameter
1.375
Material
PTFE - Expanded
Country of Origin
Unrestricted Origin
Weight
1.692461

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 1.91 2.38 2.88 3.50 4.00 4.50 5.56 6.62 8.62 10.75 12.75 14.00 16.00 18.00 20.00 24.00
Outside
Diameter
per Class		 150# 3.50 3.88 4.25 4.63 5.00 6.00 7.00 7.50 8.50 9.00 10.00 11.00 13.50 16.00 19.00 21.00 23.50 25.00 27.50 32.00
300# 3.75 4.62 4.88 5.25 6.12 6.50 7.50 8.25 9.00 10.00 11.00 12.50 15.00 17.50 20.50 23.00 25.50 28.00 30.50 36.00
600# 3.75 4.62 4.88 5.25 6.12 6.50 7.50 8.25 9.00 10.75 13.00 14.00 16.50 20.00 22.00 23.75 27.00 29.25 32.00 37.00
Bolt Circle
Diameter
per Class		 150# 2.38 2.75 3.13 3.50 3.88 4.75 5.50 6.00 7.00 7.50 8.50 9.50 11.75 14.25 17.00 18.75 21.25 22.75 25.00 29.50
300# 2.62 3.25 3.50 3.88 4.50 5.00 5.88 6.62 7.25 7.88 9.25 10.62 13.00 15.25 17.75 20.25 22.50 24.75 27.00 32.00
600# 2.62 3.25 3.50 3.88 4.50 5.00 5.88 6.62 7.25 8.50 10.50 11.50 13.75 17.00 19.25 20.75 23.75 25.75 28.50 33.00
Number of
Bolt Holes
per Class		 150# 4 4 4 4 4 4 4 4 8 8 8 8 8 12 12 12 16 16 20 20
300# 4 4 4 4 4 8 8 8 8 8 8 12 12 16 16 20 20 24 24 24
600# 4 4 4 4 4 8 8 8 8 8 8 12 12 16 20 20 20 20 24 24
Bolt Hole
Diameter
per Class		 150# 0.63 0.63 0.63 0.63 0.63 0.75 0.75 0.75 0.75 0.75 0.88 0.88 0.88 1.00 1.00 1.13 1.13 1.25 1.25 1.38
300# 0.63 0.75 0.75 0.75 0.88 0.75 0.88 0.88 0.88 0.88 0.88 0.88 1.00 1.12 1.25 1.25 1.38 1.38 1.38 1.62
600# 0.63 0.75 0.75 0.75 0.88 0.75 0.88 0.88 1.00 1.00 1.12 1.12 1.25 1.38 1.38 1.50 1.62 1.75 1.75 2.00
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# 34.25 36.50 38.75 41.75 43.75 46.00 48.75 50.75 53.00 55.25 57.25 59.50 61.75 64.00 66.25 68.75 71.00 73.00
300# 38.25 40.75 43.00 45.25 47.50 50.00 46.00 48.75 50.75 53.25 55.75 57.75 60.25 62.25 65.25 67.25 69.25 71.25
600# 40.00 42.25 44.50 47.00 49.00 51.75 50.00 52.00 55.25 57.25 59.50 62.75 65.75 67.75 70.00 73.00 75.00 78.50
Bolt Circle
Diameter
per Class		 150# 31.75 34.00 36.00 38.50 40.50 42.75 45.25 47.25 49.50 51.75 53.75 56.00 58.25 60.50 62.75 65.00 67.25 69.25
300# 34.50 37.00 39.25 41.50 43.50 46.00 43.00 45.50 47.50 49.75 52.00 54.00 56.25 58.25 61.00 63.00 65.00 67.00
600# 36.00 38.00 40.25 42.50 44.50 47.00 45.75 47.75 50.50 52.50 54.75 57.50 60.00 62.00 64.25 66.75 68.75 71.75
Number of
Bolt Holes
per Class		 150# 24 28 28 28 32 32 32 36 36 40 40 44 44 44 44 48 48 52
300# 28 28 28 28 28 32 32 32 32 32 28 32 32 32 28 28 32 32
600# 28 28 28 28 28 28 28 32 28 32 32 32 28 32 32 32 32 28
Bolt Hole
Diameter
per Class		 150# 1.38 1.38 1.38 1.63 1.63 1.63 1.63 1.63 1.63 1.63 1.63 1.63 1.88 1.88 1.88 1.88 1.88 1.88
300# 1.75 1.75 1.88 2.00 2.00 2.12 1.62 1.75 1.75 1.88 2.00 2.00 2.12 2.12 2.38 2.38 2.38 2.38
600# 2.00 2.12 2.12 2.38 2.38 2.62 2.38 2.38 2.62 2.62 2.62 2.88 3.12 3.12 3.12 3.38 3.38 3.62
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# 30.94 32.94 34.94 37.06 39.56 41.62 44.25 46.25 48.25 50.25 52.81 54.81 56.81 58.81 61.00 63.00 65.94 67.94
300# 34.12 36.25 39.00 41.50 43.62 46.12 48.12 50.12 52.50 54.50 57.50 59.50 61.50 63.50 65.88 69.50 71.94 73.94
600# 35.00 37.50 40.25 42.75 45.75 47.75                        
Bolt Circle
Diameter
per Class		 150# 29.31 31.31 33.31 35.44 37.69 39.75 42.12 44.12 46.12 48.12 50.56 52.56 54.56 56.56 58.75 60.75 63.44 65.44
300# 31.62 33.75 36.25 38.50 40.62 42.88 44.88 46.88 49.00 51.00 53.75 55.75 57.75 59.75 62.12 65.00 67.44 69.44
600# 31.75 34.00 36.50 38.75 41.50 43.50                        
Number of
Bolt Holes
per Class		 150# 36 40 44 48 40 44 40 44 48 52 40 44 48 52 56 60 48 52
300# 32 36 36 32 36 32 36 40 36 40 36 40 44 48 48 36 40 40
600# 28 28 28 28 24 28                        
Bolt Hole
Diameter
per Class		 150# 0.88 0.88 0.88 0.88 1.00 1.00 1.12 1.12 1.12 1.12 1.25 1.25 1.25 1.25 1.25 1.25 1.38 1.38
300# 1.38 1.38 1.50 1.62 1.62 1.75 1.75 1.75 1.88 1.88 2.00 2.00 2.00 2.00 2.00 2.38 2.38 2.38
600# 1.75 1.88 2.00 2.12 2.38 2.38                        
  1. All dimensions are in inches.

Physical Properties

Typical Physical Properties:
Color White
Compressibility - ASTM F36M 45%
Recovery - ASTM F36M 14%
Tensile Strength Across Grain - ASTM F152 >20 MPa
Stress Retention - DIN 52913 15 MPa
Specific Leakage Rate L - VDI 2440 / TA LUFT 2.6E^(-7)

Service Limits

Temperature Minimum: -450F (-268C)
Maximum Service: 500F (260C)
Short Term Max: 600F (315C)
Pressure Vacuum up to: 2900 psi (200 bar)
pH 0-14*
Density 0.9 g/cm^3

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.