Gasket - Spiral Wound, for ANSI Class 150, B16.47, Series B (in)

Written by Matt Milbury on . Posted in Gasket Datasheets

Gasket - Spiral Wound (B16.20), for ANSI Class 150, 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".

data gasket spiral wound 1Spiral Wound Gasket Drawing

Pipe

Size

(NPS)

Inner

Ring

Inside

Diameter

A

Sealing

Element

Inside

Diameter

B

Sealing

Element

Outside

Diameter

C

Outer

Ring

Outside

Diameter

D

26 25.75 26.50 27.50 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