Specification :

Spiral wound gasket

Material: Metal tape + Expanded Graphite / PTFE

Process: Metallic stripe and soft non-metallic filler, spiral wound and connected its end and beginning by dot welded.

Features: Used for higher temperatures and pressures.

Application: These gaskets are widely used in refineries, chemical processing plants, power generation, and a variety of valve and specialty applications.

These gaskets are generally used for higher temperatures and pressures. A variety of metals are available for the winding strip as well as for the support rings for different temperature application as under:

Material
Minimum
Maximum
Abbreviation





Stainless Steel 304
-195
-320
760
1400
304

Stainless Steel 316L
-100
-150
760
1400
316L

Stainless Steel 317L

317L

Stainless Steel 321
-195
-320
760
1400
321

Stainless Steel 347
-195
-320
925
1700
347

Carbon Steel
-40
-40
540
1000
CRS

20Cb-3( Alloy 20)
-185
-300
760
1400
A-20

HASTELLOY® B2
-185
-300
1090
2000
HAST B

HASTELLOY® C276
-185
-300
1090
2000
HAST C

INCOLOY® 800
-100
-150
870
1600
IN800

INCONEL® 600
-100
-150
1090
2000
INC 600

INCONEL® X750
-100
-150
1090
2000
INX

MONEL® 400
-130
-200
820
1500
MON

Nickel200
-195
-320
760
1400
NI

Titanium
-195
- 320
1090
2000
TI

Material used for filler strips are as under.

Material
Minimum
Maximum
Abbreviation





Ceramic
-212
-350
1090
2000
CER

Flexible Graphite
-212
-350
950
950
F.G.

PTFE

-400
500
500
PTFE

Spiral Wound Gasket Dimensions based on the under:

ASME B16.20 for ASME B16.5 Flanges.

ASME B16.20 for ASME B16.47 Series A.

ASME B16.20 for ASME B16.47 Series B.

Style 911 for Male and FemaleASME B16.5 Flanges.

Gasket Dimensions for Styles 913 and 913M per DIN 2699.