sealing products
 

 

SPIRAL WOUND GASKETS – DIMENSIONS AND TOLERENCES

 

" Perfectseal" Styles WIR , WOR and WIOR Dimensions ;

1/4" to 24" Flanges

 

ASME B16.20 Gaskets for ASME B16.5 Flanges

         

 

 

Class 150


Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/4*

0.50

0.88

1.75

1/2

0.56

0.75

1.25

1.88

3/4

0.81

1.00

1.56

2.25

1

1.06

1.25

1.88

2.63

1-1/4

1.50

1.88

2.38

3.00

1-1/2

1.75

2.13

2.75

3.38

2

2.19

2.75

3.38

4.13

2-1/2

2.62

3.25

3.88

4.88

3

3.19

4.00

4.75

5.38

3-1/2*

4.50

5.25

6.38

4

4.19

5.00

5.88

6.88

4-1/2*

5.50

6.50

7.00

5

5.19

6.13

7.00

7.75

6

6.19

7.19

8.25

8.75

8

8.50

9.19

10.38

11.00

10

10.56

11.31

12.50

13.38

12

12.50

13.38

14.75

16.13

14

13.75

14.63

16.00

17.75

16

15.75

16.63

18.25

20.25

18

17.69

18.69

20.75

21.63

20

19.69

20.69

22.75

23.88

24

23.75

24.75

27.00

28.25

Class 300

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/4*

0.50

0.88

1.75

1/2

0.56

0.75

1.25

2.13

3/4

0.81

1.00

1.56

2.63

1

1.06

1.25

1.88

2.88

1-1/4

1.50

1.88

2.38

3.25

1-1/2

1.75

2.13

2.75

3.75

2

2.19

2.75

3.38

4.38

2-1/2

2.62

3.25

3.88

5.13

3

3.19

4.00

4.75

5.88

3-1/2*

4.50

5.25

6.50

4

4.19

5.00

5.88

7.13

4-1/2*

5.50

6.50

7.75

5

5.19

6.13

7.00

8.50

6

6.19

7.19

8.25

9.88

8

8.50

9.19

10.38

12.13

10

10.56

11.31

12.50

14.25

12

12.50

13.38

14.75

16.63

14

13.75

14.63

16.00

19.13

16

15.75

16.63

18.25

21.25

18

17.69

18.69

20.75

23.50

20

19.69

20.69

22.75

25.75

24

23.75

24.75

27.00

30.50

 

Class 400

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/4*

0.50

0.88

1.75

1/2*

0.75

1.25

2.13

3/4*

1.00

1.56

2.63

1*

1.25

1.88

2.88

1-1/4*

1.88

2.38

3.25

1-1/2*

2.13

2.75

3.75

2*

2.75

3.38

4.38

2-1/2*

3.25

3.88

5.13

3*

4.00

4.75

5.88

3-1/2*

4.13

5.25

6.38

4

4.19

4.75

5.88

7.00

4-1/2*

5.31

6.50

7.63

5

5.19

5.81

7.00

8.38

6

6.19

6.88

8.25

9.75

8

8.25

8.88

10.38

12.00

10

10.25

10.81

12.50

14.13

12

12.50

12.88

14.75

16.50

14

13.75

14.25

16.00

19.00

16

15.75

16.25

18.25

21.13

18

17.69

18.50

20.75

23.38

20

19.69

20.50

22.75

25.50

24

23.75

24.75

27.00

30.25

 

Class 600

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/4*

0.50

0.88

1.75

1/2

0.56

0.75

1.25

2.13

3/4

0.81

1.00

1.56

2.63

1

1.06

1.25

1.88

2.88

1-1/4

1.50

1.88

2.38

3.25

1-1/2

1.75

2.13

2.75

3.75

2

2.19

2.75

3.38

4.38

2-1/2

2.62

3.25

3.88

5.13

3

3.19

4.00

4.75

5.88

3-1/2*

4.13

5.25

6.38

4

4.19

4.75

5.88

7.63

4-1/2*

5.31

6.50

8.25

5

5.19

5.81

7.00

9.50

6

6.19

6.88

8.25

10.50

8

8.25

8.88

10.38

12.63

10

10.25

10.81

12.50

15.75

12

12.50

12.88

14.75

18.00

14

13.75

14.25

16.00

19.38

16

15.75

16.25

18.25

22.25

18

17.69

18.50

20.75

24.13

20

19.69

20.50

22.75

26.88

24

23.75

24.75

27.00

31.13

 

Class 900

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/2*

0.75

1.25

2.50

3/4*

1.00

1.56

2.75

1*

1.25

1.88

3.13

1-1/4*

1.56

2.38

3.50

1-1/2*

1.88

2.75

3.88

2*

2.31

3.38

5.63

2-1/2*

2.75

3.88

6.50

3

3.19

3.75

4.75

6.63

3-1/2*

4.13

5.25

7.50

4

4.19

4.75

5.88

8.13

4-1/2*

5.31

6.50

9.38

5

5.19

5.81

7.00

9.75

6

6.19

6.88

8.25

11.38

8

7.75

8.75

10.13

14.13

10

9.69

10.88

12.25

17.13

12

11.50

12.75

14.50

19.63

14

12.63

14.00

15.75

20.50

16

14.75

16.25

18.00

22.63

18

16.75

18.25

20.50

25.13

20

19.00

20.50

22.50

27.50

24

23.25

24.75

26.75

33.00

 

Class 1500

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/2

0.56

0.75

1.25

2.50

3/4

0.81

1.00

1.56

2.75

1

1.06

1.25

1.88

3.13

1-1/4

1.31

1.56

2.38

3.50

1-1/2

1.63

1.88

2.75

3.88

2

2.06

2.31

3.38

5.63

2-1/2

2.50

2.75

3.88

6.50

3

3.19

3.63

4.75

6.88

3-1/2*

4.13

5.25

7.38

4

4.19

4.63

5.88

8.25

4-1/2*

5.31

6.50

9.13

5

5.19

5.63

7.00

10.00

6

6.19

6.75

8.25

11.13

8

7.75

8.50

10.13

13.88

10

9.69

10.50

12.25

17.13

12

11.50

12.75

14.50

20.50

14

12.63

14.25

15.75

22.75

16

14.50

16.00

18.00

25.25

18

16.75

18.25

20.50

27.75

20

18.75

20.25

22.50

29.75

24

22.75

24.25

26.75

35.50

 

Class 2500

Size
NPS

Inner Ring

Sealing Element

Outer Ring

Inside (A)
Diameter

Inside (B)
Diameter

Outside (C)
Diameter

Outside (D)
Diameter

1/2

0.56

0.75

1.25

2.75

3/4

0.81

1.00

1.56

3.00

1

1.06

1.25

1.88

3.38

1-1/4

1.31

1.56

2.38

4.13

1-1/2

1.63

1.88

2.75

4.63

2

2.06

2.31

3.38

5.75

2-1/2

2.50

2.75

3.88

6.63

3

3.19

3.63

4.75

7.75

4

4.19

4.63

5.88

9.25

5

5.19

5.63

7.00

11.00

6

6.19

6.75

8.25

12.50

8

7.75

8.50

10.13

15.25

10

9.69

10.63

12.25

18.75

12

11.50

12.50

14.50

21.63

 

Notes :

    • ASME B16.20 does not include dimensions for NPS 1/4, 3-1/2, or 4-1/2, or Class 400 flanges up to NPS 3 and Class 900 flanges up to NPS 2-1/2. Dimensions in inches.
    • The inner ring thickness shall be 0.117-0.131 inches.
    • From sizes NPS 1-1/4 to NPS 3, the inside diameter tolerance is ±0.03 inches, for larger sizes, the inside diameter tolerance is ±0.06 inches.
    • There are no Class 400 flanges NPS 1/2 to NPS 3 ( instead use Class 600), Class 900 flanges NPS 1/2 to NPS 2-1/2 ( Instead use Class 1500), or Class 2500 flanges NPS 14 or larger.
    • The inner ring inside diameters shown for NPS 1-1/4 to 2-1/2 in Class 1500 and 2500 will produce inner ring widths of 0.12 inches, a practical minimum for production purposes.
    • Inner rings are required for Class 900, NPS 24 gaskets, Class 1500 NPS 12 to NPS 24 gaskets, and Class 2500 NPS 4 to NPS 12 gaskets.

    Styles WIR , WIOR Dimensions 22" to 60" Series A Flanges

    ASME B16.20 Gaskets for ASME B16.47 Series A Flanges (MSS SP-44)

     

    Class 150

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22*

    22.75

    24.00

    26.00

    26

    25.75

    26.50

    27.75

    30.50

    28

    27.75

    28.50

    29.75

    32.75

    30

    29.75

    30.50

    31.75

    34.75

    32

    31.75

    32.50

    33.88

    37.00

    34

    33.75

    34.50

    35.88

    39.00

    36

    35.75

    36.50

    38.13

    41.25

    38

    37.75

    38.50

    40.13

    43.75

    40

    39.75

    40.50

    42.13

    45.75

    42

    41.75

    42.50

    44.25

    48.00

    44

    43.75

    44.50

    46.38

    50.25

    46

    45.75

    46.50

    48.38

    52.25

    48

    47.75

    48.50

    50.38

    54.50

    50

    49.75

    50.50

    52.50

    56.50

    52

    51.75

    52.50

    54.50

    58.75

    54

    53.50

    54.50

    56.50

    61.00

    56

    55.50

    56.50

    58.50

    63.25

    58

    57.50

    58.50

    60.50

    65.50

    60

    59.50

    60.50

    62.50

    67.50

     

    Class 300

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22*

    22.75

    24.75

    27.75

    26

    25.75

    27.00

    29.00

    32.88

    28

    27.75

    29.00

    31.00

    35.38

    30

    29.75

    31.25

    33.25

    37.50

    32

    31.75

    33.50

    35.50

    39.63

    34

    33.75

    35.50

    37.50

    41.63

    36

    35.75

    37.63

    39.63

    44.00

    38

    37.50

    38.50

    40.00

    41.50

    40

    39.50

    40.25

    42.13

    43.88

    42

    41.50

    42.25

    44.13

    45.88

    44

    43.50

    44.50

    46.50

    48.00

    46

    45.38

    46.38

    48.38

    50.13

    48

    47.63

    48.63

    50.63

    52.13

    50

    49.00

    51.00

    53.00

    54.25

    52

    52.00

    53.00

    55.00

    56.25

    54

    53.25

    55.25

    57.25

    58.75

    56

    55.25

    57.25

    59.25

    60.75

    58

    57.00

    59.50

    61.50

    62.75

    60

    60.00

    61.50

    63.50

    64.75

     

    Class 400

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22*

    22.75

    24.75

    27.63

    26

    26.00

    27.00

    29.00

    32.75

    28

    28.00

    29.00

    31.00

    35.13

    30

    29.75

    31.25

    33.25

    37.25

    32

    32.00

    33.50

    35.50

    39.50

    34

    34.00

    35.50

    37.50

    41.50

    36

    36.13

    37.63

    39.63

    44.00

    38

    37.50

    38.25

    40.25

    42.25

    40

    39.38

    40.38

    42.38

    44.38

    42

    41.38

    42.38

    44.38

    46.38

    44

    43.50

    44.50

    46.50

    48.50

    46

    46.00

    47.00

    49.00

    50.75

    48

    47.50

    49.00

    51.00

    53.00

    50

    49.50

    51.00

    53.00

    55.25

    52

    51.50

    53.00

    55.00

    57.25

    54

    53.25

    55.25

    57.25

    59.75

    56

    55.25

    57.25

    59.25

    61.75

    58

    57.25

    59.25

    61.25

    63.75

    60

    59.75

    61.75

    63.75

    66.25

     

    Class 600

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22*

    22.75

    24.75

    28.88

    26

    25.50

    27.00

    29.00

    34.13

    28

    27.50

    29.00

    31.00

    36.00

    30

    29.75

    31.25

    33.25

    38.25

    32

    32.00

    33.50

    35.50

    40.25

    34

    34.00

    35.50

    37.50

    42.25

    36

    36.13

    37.63

    39.63

    44.50

    38

    37.50

    39.00

    41.00

    43.50

    40

    39.75

    41.25

    43.25

    45.50

    42

    42.00

    43.50

    45.50

    48.00

    44

    43.75

    45.75

    47.75

    50.00

    46

    45.75

    47.75

    49.75

    52.25

    48

    48.00

    50.00

    52.00

    54.75

    50

    50.00

    52.00

    54.00

    57.00

    52

    52.00

    54.00

    56.00

    59.00

    54

    54.25

    56.25

    58.25

    61.25

    56

    56.25

    58.25

    60.25

    63.50

    58

    58.00

    60.50

    62.50

    65.50

    60

    60.25

    62.75

    64.75

    68.25

     

    Class 900

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22*

    24.25

    27.00

    33.00

    26

    26.00

    27.00

    29.00

    34.75

    28

    28.00

    29.00

    31.00

    37.25

    30

    30.25

    31.25

    33.25

    39.75

    32

    32.00

    33.50

    35.50

    42.25

    34

    34.00

    35.50

    37.50

    44.75

    36

    36.25

    37.75

    39.75

    47.25

    38

    39.75

    40.75

    42.75

    47.25

    40

    41.75

    43.25

    45.25

    49.25

    42

    43.75

    45.25

    47.25

    51.25

    44

    45.50

    47.50

    49.50

    53.88

    46

    48.00

    50.00

    52.00

    56.50

    48

    50.00

    52.00

    54.00

    58.50

     

    Notes:

    1. Inner rings are required for Class 900 gaskets, NPS 26 To NPS 48, and PFTE.
    2. There are no Class 900 flanges in NPS 50 or larger.
    3. The gasket inside-outside tolerance for NPS 26 to NPS 34 is ±0.03" and the tolerance for NPS 36 to NPS 60 is ±0.06".
    4. The gasket outside diameter tolerance for NPS 26 to NPS 60 is ±0.06".
    5. The outer ring outside diameter tolerance is ±0.03".
    6. The gasket thickness tolerance is ±0.005".

    * Non-ASME sizes

     

     

    Styles WIR , WIOR Dimensions 26" to 60" Series B Flanges

    ASME B16.20 Gaskets for ASME B16.47 Series B Flanges (API-605)

    Class 75 - Large Diameter Weld Neck Flanges

     

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.25

    27.00

    27.88

    28

    28.25

    29.13

    29.88

    30

    30.25

    31.13

    31.88

    32

    32.25

    33.13

    33.88

    34

    34.25

    35.13

    35.88

    36

    36.25

    37.25

    38.31

    38

    38.25

    39.31

    40.31

    40

    40.25

    41.31

    42.31

    42

    42.25

    43.25

    44.31

    44

    44.25

    45.50

    46.50

    46

    46.25

    47.50

    48.50

    48

    48.38

    49.50

    50.50

    50

    50.25

    51.50

    52.50

    52

    52.38

    53.63

    54.63

    54

    54.38

    55.63

    56.63

    56

    56.50

    57.88

    58.88

    58

    58.50

    59.88

    60.88

    60

    60.50

    61.75

    62.88

     

    Class 150

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    25.75

    26.50

    27.75

    28.56

    28

    27.75

    28.50

    29.50

    30.56

    30

    29.75

    30.50

    31.50

    32.56

    32

    31.75

    32.50

    33.50

    34.69

    34

    33.75

    34.50

    35.75

    36.81

    36

    35.75

    36.50

    37.75

    38.88

    38

    37.75

    38.37

    39.75

    41.13

    40

    39.75

    40.25

    41.88

    43.13

    42

    41.75

    42.50

    43.88

    45.13

    44

    43.75

    44.25

    45.88

    47.13

    46

    45.75

    46.50

    48.19

    49.44

    48

    47.75

    48.50

    50.00

    51.44

    50

    49.75

    50.50

    52.19

    53.44

    52

    51.75

    52.50

    54.19

    55.44

    54

    53.75

    54.50

    56.00

    57.63

    56

    56.00

    56.88

    58.18

    59.63

    58

    58.19

    59.07

    60.19

    62.19

    60

    60.44

    61.31

    62.44

    64.19

     

    Class 300

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    25.75

    26.50

    28.00

    30.38

    28

    27.75

    28.50

    30.00

    32.50

    30

    29.75

    30.50

    32.00

    34.88

    32

    31.75

    32.50

    34.00

    37.00

    34

    33.75

    34.50

    36.00

    39.13

    36

    35.75

    36.50

    38.00

    41.25

    38

    38.25

    39.75

    41.25

    43.25

    40

    40.25

    41.75

    43.25

    45.25

    42

    42.75

    43.75

    45.25

    47.25

    44

    44.25

    45.75

    47.25

    49.25

    46

    46.38

    47.88

    49.38

    51.88

    48

    48.50

    49.75

    51.63

    53.88

    50

    49.88

    51.88

    53.38

    55.88

    52

    51.88

    53.88

    55.38

    57.88

    54

    53.75

    55.25

    57.25

    60.25

    56

    56.25

    58.25

    60.00

    62.75

    58

    58.44

    60.44

    61.94

    65.19

    60

    61.31

    62.56

    64.19

    67.19

     

    Class 400

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    25.75

    26.25

    27.50

    29.38

    28

    27.63

    28.13

    29.50

    31.50

    30

    29.63

    30.13

    31.75

    33.75

    32

    31.50

    32.00

    33.88

    35.88

    34

    33.50

    34.13

    35.88

    37.88

    36

    35.38

    36.13

    38.00

    40.25

    38

    37.50

    38.25

    40.25

    42.25

    40

    39.38

    40.38

    42.38

    44.38

    42

    41.38

    42.38

    44.38

    46.38

    44

    43.50

    44.50

    46.50

    48.50

    46

    46.00

    47.00

    49.00

    50.75

    48

    47.50

    49.00

    51.00

    53.00

    50

    49.50

    51.00

    53.00

    55.25

    52

    51.50

    53.00

    55.00

    57.25

    54

    53.25

    55.25

    57.25

    59.75

    56

    55.25

    57.25

    59.25

    61.75

    58

    57.25

    59.25

    61.25

    63.75

    60

    59.75

    61.75

    63.75

    66.25

     

    Class 600

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    25.38

    26.13

    28.13

    30.13

    28

    27.25

    27.75

    29.75

    32.25

    30

    29.63

    30.63

    32.63

    34.63

    32

    31.25

    32.75

    34.75

    36.75

    34

    33.50

    35.00

    37.00

    39.25

    36

    35.50

    37.00

    39.00

    41.25

    38

    37.50

    39.00

    41.00

    43.50

    40

    39.75

    41.25

    43.25

    45.50

    42

    42.00

    43.50

    45.50

    48.00

    44

    43.75

    45.75

    47.75

    50.00

    46

    45.75

    47.75

    49.75

    52.25

    48

    48.00

    50.00

    52.00

    54.75

    50

    50.00

    52.00

    54.00

    57.00

    52

    52.00

    54.00

    56.00

    59.00

    54

    54.25

    56.25

    58.25

    61.25

    56

    56.25

    58.25

    60.25

    63.50

    58

    58.00

    60.50

    62.50

    65.50

    60

    60.25

    62.75

    64.75

    68.25

    Class 900

    Size
    NPS

    Inner Ring

    Sealing Element

    Outer Ring

    Inside (A)
    Diameter

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.25*

    27.25

    29.50

    33.00

    28

    28.25*

    29.25

    31.50

    35.50

    30

    30.75*

    31.75

    33.75

    37.75

    32

    33.00*

    34.00

    36.00

    40.00

    34

    35.25*

    36.25

    38.25

    42.25

    36

    36.25*

    37.25

    39.25

    44.25

    38

    39.75*

    40.75

    42.75

    47.25

    40

    41.75*

    43.25

    45.25

    49.25

    42

    43.75*

    45.25

    47.25

    51.25

    44

    45.50*

    47.50

    49.50

    53.88

    46

    48.00*

    50.00

    52.00

    56.50

    48

    50.00*

    52.00

    54.00

    58.50

    Notes:

    1. * Inner rings are required for Class 900 gaskets, NPS 26 thru NPS 48, and PTFE.
    2. There are no Class 900 flanges in NPS 50 and larger.
    3. The gasket inside-outside tolerance for NPS 26 thru NPS 34 is ±0.03" and the tolerance for NPS 36 thru NPS 60 is ±0.06".
    4. The gasket outside diameter tolerance for NPS 26 thru NPS 60 is ±0.06".
    5. The outer ring outside diameter tolerance is ±0.03".
    6. The gasket thickness tolerance is ±0.005".

    Style WIR Dimensions Other Large Diameter Flanges, 26" to 96"

     

    Class 75 - Slip-On and Blind

     

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    27.00

    28.25

    30.13

    28

    29.00

    30.25

    32.13

    30

    31.00

    32.25

    34.13

    32

    33.13

    34.38

    36.38

    34

    35.13

    36.50

    38.38

    36

    37.13

    38.50

    40.38

    42

    43.25

    44.75

    46.63

    48

    49.25

    50.88

    52.63

    54

    55.38

    57.75

    59.13

    60

    61.38

    63.38

    65.13

    66

    67.50

    69.50

    71.75

    72

    73.50

    75.50

    77.75

     

    Class 75 - Weld Neck and Blind

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.50

    27.75

    28.75

    28

    28.50

    29.75

    30.75

    30

    30.50

    31.75

    32.75

    32

    32.50

    33.75

    35.13

    34

    34.50

    35.88

    37.13

    36

    36.50

    37.88

    39.13

    42

    42.50

    44.00

    45.63

    48

    48.50

    50.13

    51.63

    54

    54.50

    56.38

    57.88

    60

    60.50

    62.50

    63.88

    66

    66.50

    68.50

    70.25

    72

    72.50

    74.50

    76.25

     

    Class 125

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    22

    22.75

    24.00

    26.00

    26

    26.50

    27.75

    30.50

    28

    28.50

    29.75

    32.75

    30

    30.50

    31.75

    34.75

    32

    32.50

    33.88

    37.00

    34

    34.50

    35.88

    39.00

    36

    36.50

    38.13

    41.25

    38

    38.50

    40.13

    43.75

    40

    40.50

    42.13

    45.75

    42

    42.50

    44.25

    48.00

    44

    44.50

    46.38

    50.25

    46

    46.50

    48.38

    52.25

    48

    48.50

    50.38

    54.50

    50

    50.50

    52.50

    56.50

    52

    52.50

    54.50

    58.75

    54

    54.50

    56.50

    61.00

    60

    60.50

    62.50

    67.50

    66

    71.00

    72.75

    74.25

    72

    77.50

    79.25

    80.75

    84

    90.25

    92.00

    93.50

    96

    103.00

    104.75

    106.25

     

    Class 175

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.50

    27.75

    29.13

    28

    28.50

    29.75

    31.13

    30

    30.50

    31.75

    33.38

    32

    32.50

    33.75

    35.38

    34

    34.50

    35.88

    37.50

    36

    36.50

    37.88

    39.50

    38

    38.50

    39.88

    41.50

    40

    40.50

    42.00

    43.50

    42

    42.50

    44.00

    45.88

    44

    44.50

    46.00

    47.88

    46

    46.50

    48.00

    49.88

    48

    48.50

    50.13

    51.88

    50

    50.50

    52.25

    53.88

    52

    52.50

    54.38

    56.13

    54

    54.50

    56.75

    58.13

    60

    60.50

    62.50

    64.13

    66

    67.88

    68.88

    70.13

    72

    73.38

    75.13

    76.63

    84

    87.00

    88.75

    90.25

    96

    99.00

    100.75

    102.25

     

    Class 250

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.50

    27.75

    32.75

    28

    28.50

    29.75

    35.25

    30

    30.50

    31.75

    37.50

    32

    32.50

    33.88

    39.75

    34

    34.50

    35.88

    41.75

    36

    36.50

    38.13

    44.00

    38

    38.50

    40.13

    46.00

    40

    40.50

    42.13

    48.25

    42

    42.50

    44.25

    50.75

    44

    44.50

    46.38

    53.00

    46

    46.50

    48.38

    55.25

    48

    48.50

    50.38

    58.75

     

    Class 350

    Size
    NPS

    Sealing Element

    Outer Ring

    Inside (B)
    Diameter

    Outside (C)
    Diameter

    Outside (D)
    Diameter

    26

    26.50

    27.75

    29.63

    28

    28.50

    29.75

    31.63

    30

    30.50

    31.75

    33.88

    32

    32.50

    33.88

    35.88

    34

    34.50

    35.88

    37.88

    36

    36.50

    38.13

    40.38

    38

    38.50

    40.13

    42.38

    40

    40.50

    42.13

    44.38

    42

    42.50

    44.25

    46.63

    44

    44.50

    46.38

    49.00

    46

    46.50

    48.38

    51.00

    48

    48.50

    50.38

    53.00

    52

    52.50

    54.50

    57.38

    54

    54.50

    56.50

    59.38

    60

    60.50

    62.50

    65.38

    66

    66.50

    68.50

    72.50

    72

    72.25

    77.00

    78.50

    84

    88.38

    90.13

    91.63

    96

    100.75

    102.50

    104.00

     

     

    Important Note to Users :

    • Properties/application shown here are general . Your specific application could be different and should be taken in to consideration only with an evaluation for its suitability. For your typical requirements , consult our technical team , as failure to select the proper sealing products could result in property damage and/or serious personal injury.
    • Performance data published here has been developed from field testing, customer field reports and/or in-house testing.
    • While the utmost care has been used in compiling this information, we assume no responsibility for errors.

     

     

     

     

 

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