Gasket - Spiral Wound, for ANSI Class 400, B16.47, Series B (in)

Written by Matt Milbury on . Posted in Gasket Datasheets

Gasket - Spiral Wound (B16.20), for ANSI Class 400, 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 26.25 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