One of the widely used seals, the spiral wound gasket depends on the mechanical characteristics of a formed metal strip which works as a spring, offering a better resilience under fluctuated pressure & temperature.
R Type Spiral Wound Gasket :
SWG with only filler and winding, suitable for high pressure and temperature applications for TG/male/ female flange .
For example: SS304/FG.
CGI Type Spiral Wound Gasket:
SWG with inner and outer ring, for raised & flat face flange.
For example: SS304/SS304+FG/CS
CG Type Spiral Wound Gasket:
SWG with only outer ring, for raised / flat face flange.
For example: SS304/FG CS
RIR Type Spiral Wound Gasket:
SWG with only inner ring, for male / female flange.
For example: SS304/SS304/FG
H Type Spiral Wound Gasket:
SWG for heat exchanger.
For example: SS304/FG with 1 bar of DJ
S Type Spiral Wound Gasket:
Special shape for special flange/ for example: track, oval, diamond, square
Material for rings:
Low Carbon Steel, Stainless Steel 304, Stainless Steel 304L, Stainless Steel 316, Stainless Steel 316L, Stainless Steel 321, Stainless Steel 347, Stainless Steel 410, Aluminium, Copper, Brass, Nickel 200, Monel 400, Inconel 600, Hastelloy B2, Titanium (see more information in our products catalogue
How to choose Filler
The main sealing part is filler which is made up of SS strip and non- metallic filling tape, the material can be changed according to different chemical compatibility requirements,
Graphite filling strip is supposed to used in high temperature environment,
PTFE filling strip is for acids and other corrosive mediums
Non – asbestos its use increased when the health problems with asbestos became known. Only recommend for low temperature less severe applications due to the rubber content .
Ceramic is in extremely high temperature applications.The filler is not so common as it cannot achieve the same leak tightness as graphite
Marking on outer ring:
– Nominal Size – Pressure Range
– Winding material + Filler Material
– Manufactured to (standard)
We deliver according to the following standards: ASME B16.20, ASME B16.47 Series A, ANSI B16.5, BS1560, BS EN1092, DIN, JIS , etc.
How to order
1 — Nominal pipe size or specific gasket dimensions
2 — Pressure rating
3 — winding and filler materials
4 — centering / outer ring or inner ring material