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Technical Info - Non-Metallic Gaskets

Temperature Ranges for Non-Metallic Gaskets
Dimensions for Ring Type Gaskets
Dimensions for Full Face Gaskets


Temperature Ranges for Non-Metallic Gaskets

Temperature Ranges for LAMONS Non-Metallic Gaskets
Material Temperature Range
L441 Compressed Non-Asbestos -40° F to 400° F
GHR Flexible Graphite -400° F to 975° F
Rubber -70° F to 200° F
Neoprene -60° F to 250° F
PTFE Cryogenic to 450° F

Dimensions for Non-Metallic Gaskets (including L441, Garlock, Flexible Graphite, Rubber, and Neoprene)

Ring Type

Ring Type Non-Metallic Gasket Schematic
Nominal
Pipe Size
(NPS)
Inside
Diameter (in)
Outside
Diameter (in)
 
Class 150 1/2 0.84 1.88
3/4 1.06 2.25
1 1.31 2.62
1-1/4 1.66 3.00
1-1/2 1.91 3.38
2 2.38 4.12
2-1/2 2.88 4.88
3 3.50 5.38
3-1/2 4.00 6.38
4 4.50 6.88
5 5.56 7.75
6 6.62 8.75
8 8.62 11.00
10 10.75 13.38
12 12.75 16.13
14 14.00 17.75
16 16.00 20.25
18 18.00 21.62
20 20.00 23.88
24 24.00 28.25
Class 300 1/2 0.84 2.12
3/4 1.06 2.62
1 1.31 2.88
1-1/4 1.66 3.25
1-1/2 1.91 3.75
2 2.38 4.38
2-1/2 2.88 5.12
3 3.50 5.88
3-1/2 4.00 6.50
4 4.50 7.12
5 5.56 8.50
6 6.62 9.88
8 8.62 12.12
10 10.75 14.25
12 12.75 16.62
14 14.00 19.12
16 16.00 21.25
18 18.00 23.50
20 20.00 25.75
24 24.00 30.50
Class 400 1/2 0.84 2.12
3/4 1.06 2.62
1 1.31 2.88
1-1/4 1.66 3.25
1-1/2 1.91 3.75
2 2.38 4.38
2-1/2 2.88 5.12
3 3.50 5.88
3-1/2 4.00 6.38
4 4.50 7.00
5 5.56 8.38
6 6.62 9.75
8 8.62 12.00
10 10.75 14.12
12 12.75 16.50
14 14.00 19.00
16 16.00 21.12
18 18.00 23.38
20 20.00 25.50
24 24.00 30.25
Class 600 1/2 0.84 2.12
3/4 1.06 2.62
1 1.31 2.88
1-1/4 1.66 3.25
1-1/2 1.91 3.75
2 2.38 4.38
2-1/2 2.88 5.12
3 3.50 5.88
3-1/2 4.00 6.38
4 4.50 7.62
5 5.56 9.50
6 6.62 10.50
8 8.62 12.62
10 10.75 15.75
12 12.75 18.00
14 14.00 19.38
16 16.00 22.25
18 18.00 24.12
20 20.00 26.88
24 24.00 31.12
Class 900 1/2 0.84 2.50
3/4 1.06 2.75
1 1.31 3.12
1-1/4 1.66 3.50
1-1/2 1.91 3.88
2 2.38 5.62
2-1/2 2.88 6.50
3 3.50 6.62
3-1/2 - -
4 4.50 8.12
5 5.56 9.75
6 6.62 11.38
8 8.62 14.12
10 10.75 17.12
12 12.75 19.62
14 14.00 20.50
16 16.00 22.62
18 18.00 25.12
20 20.00 27.50
24 24.00 33.00

Full Face

Full Face Non-Metallic Gasket Schematic
Nominal
Pipe Size
(NPS)
Inside
Diameter (in)
Outside
Diameter (in)
No. of Bolt Holes Bolt Hole
Diameter (in)
Bolt Circle
Diameter (in)
 
Nom.
Pipe
Size
Inside
Diam.
(in)
Out-
side
Diam.
(in)
# of
Bolt
Hol-
es
Bolt
Hole
Diam.
(in)
Bolt
Circle
Diam.
(in)
 
Class 150 1/2 0.84 3.50 4 0.62 2.38
3/4 1.06 3.88 4 0.62 2.75
1 1.31 4.25 4 0.62 3.12
1-1/4 1.66 4.63 4 0.62 3.50
1-1/2 1.91 5.00 4 0.62 3.88
2 2.38 6.00 4 0.75 4.75
2-1/2 2.88 7.00 4 0.75 5.50
3 3.50 7.50 4 0.75 6.00
3-1/2 4.00 8.50 8 0.75 7.00
4 4.50 9.00 8 0.75 7.50
5 5.56 10.00 8 0.88 8.50
6 6.62 11.00 8 0.88 9.50
8 8.62 13.50 8 0.88 11.75
10 10.75 16.00 12 1.00 14.25
12 12.75 19.00 12 1.00 17.00
14 14.00 21.00 12 1.12 18.75
16 16.00 23.50 16 1.12 21.25
18 18.00 25.00 16 1.25 22.75
20 20.00 27.50 20 1.25 25.00
24 24.00 32.00 20 1.38 29.50
Class 300 1/2 0.84 3.75 4 0.63 2.63
3/4 1.06 4.62 4 0.75 3.25
1 1.31 4.88 4 0.75 3.50
1-1/4 1.66 5.25 4 0.75 3.88
1-1/2 1.91 6.12 4 0.88 4.50
2 2.38 6.50 8 0.75 5.00
2-1/2 2.88 7.50 8 0.88 5.88
3 3.50 8.25 8 0.88 6.63
3-1/2 4.00 9.00 8 0.88 7.25
4 4.50 10.00 8 0.88 7.88
5 5.56 11.00 8 0.88 9.25
6 6.62 12.50 12 0.88 10.63
8 8.62 15.00 12 1.00 13.00
10 10.75 17.50 16 1.13 15.25
12 12.75 20.50 16 1.25 17.75
14 14.00 23.00 20 1.25 20.25
16 16.00 25.50 20 1.38 22.50
18 18.00 28.00 24 1.38 24.75
20 20.00 30.50 24 1.38 27.00
24 24.00 36.00 24 1.63 32.00
Class 400 1/2 0.84 3.75 4 0.63 2.62
3/4 1.06 4.63 4 0.75 3.25
1 1.31 4.88 4 0.75 3.50
1-1/4 1.66 5.25 4 0.75 3.88
1-1/2 1.91 6.13 4 0.88 4.50
2 2.38 6.50 8 0.75 5.00
2-1/2 2.88 7.50 8 0.88 5.88
3 3.50 8.25 8 0.88 6.63
3-1/2 4.00 9.00 8 1.00 7.25
4 4.50 10.00 8 1.00 7.88
5 5.56 11.00 8 1.00 9.25
6 6.62 12.50 12 1.00 10.63
8 8.62 15.00 12 1.13 13.00
10 10.75 17.50 16 1.25 15.25
12 12.75 20.50 16 1.38 17.75
14 14.00 23.00 20 1.38 20.25
16 16.00 25.50 20 1.50 22.50
18 18.00 28.00 24 1.50 24.75
20 20.00 30.50 24 1.63 27.00
24 24.00 36.00 24 1.88 32.00
Class 600 1/2 0.84 3.75 4 0.63 2.63
3/4 1.06 4.63 4 0.75 3.25
1 1.31 4.88 4 0.75 3.50
1-1/4 1.66 5.25 4 0.75 3.88
1-1/2 1.91 6.13 4 0.88 4.50
2 2.38 6.50 8 0.75 5.00
2-1/2 2.88 7.50 8 0.88 5.88
3 3.50 8.25 8 0.88 6.63
3-1/2 4.00 9.00 8 1.00 7.25
4 4.50 10.75 8 1.00 8.50
5 5.56 13.00 8 1.13 10.50
6 6.62 14.00 12 1.13 11.50
8 8.62 16.50 12 1.25 13.75
10 10.75 20.00 16 1.38 17.00
12 12.75 22.00 20 1.38 19.25
14 14.00 23.75 20 1.50 20.75
16 16.00 27.00 20 1.63 23.75
18 18.00 29.25 20 1.75 25.75
20 20.00 32.00 24 1.75 28.50
24 24.00 37.00 24 2.00 33.00
Class 900 1/2 0.84 4.75 4 0.88 3.25
3/4 1.06 5.13 4 0.88 3.50
1 1.31 5.88 4 1.00 4.00
1-1/4 1.66 6.25 4 1.00 4.38
1-1/2 1.91 7.00 4 1.13 4.88
2 2.38 8.50 8 1.00 6.50
2-1/2 2.88 9.63 8 1.13 7.50
3 3.50 9.50 8 1.00 7.50
3-1/2 4.00 11.50 - - -
4 4.50 11.50 8 1.25 9.25
5 5.56 13.75 8 1.38 11.00
6 6.62 15.00 12 1.25 12.50
8 8.62 18.50 12 1.50 15.50
10 10.75 21.50 16 1.50 18.50
12 12.75 24.00 20 1.50 21.00
14 14.00 25.25 20 1.63 22.00
16 16.00 27.75 20 1.75 24.25
18 18.00 31.00 20 2.00 27.00
20 20.00 33.75 20 2.13 29.50
24 24.00 41.00 20 2.63 35.50
1022 Magnolia Ave
Port Neches, TX 77651
ph 409.727.7384
fx 409.727.7284
921 W Pasadena Fwy
Pasadena, TX 77506
ph 713.475.6100
fx 713.475.6193
2234 Industrial Drive
Ste B
Sulphur, LA 70665
ph 337.882.6887