Gasket - Spiral Wound, for ANSI Class 300, B16.47, Series B (in)

Written by Matt Milbury on . Posted in Gasket Datasheets

Gasket - Spiral Wound (B16.20), for ANSI Class 300, 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 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