Spiral Wound ANSI Class 900 Gasket, B16.47 ,Series B (in)

Spiral Wound ANSI Class 900 Gasket, B16.47 ,Series B (in)

  • Dimensions to ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed
  • Inner rings are recommended for all graphite filled gaskets, required for all PTFE filled gaskets.
  • The gasket outside diameter tolerance for NPS 26" through NPS 60" is ±0.06".
  • The gasket inside diameter tolerance for NPS 26" through NPS 34" is ±0.03"; for NPS 36" through NPS 60" is ±0.05".
  • The centering ring outside diameter tolerance is ±0.03".

 

Pipe Size

(NPS)

Inner Ring

Inside Diameter A

Sealing Element

Inside Diameter B

Sealing Element

Outside Diameter C

Outer Ring

Outside Diameter D

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

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