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

Written by Matt Milbury. Posted in Gasket Datasheets

Gasket - Spiral Wound (B16.20), for ANSI Class 300, B16.47 (in) Datasheet

  • 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 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