Basic Type
Basic construction type, inner and outer diameters are reinforced
with several piles of metal without filler to give greater
stability and better compression characteristics. - Suitable for
tongue and groove, male and female or grooved to flat face flange
assemblies.
Inner Ring Type
Solid inner metal ring acts as a compression stopper. To prevent
accumulation of solids, reduce turbulent flow of process fluids and
minimize erosion, damages of gasket between flange bore and the
inside diameter, the annular space is filled up by solid inner
metal ring. - Suitable for male and female pipe flanges.
Outer Ring Type
Solid outer ring accurately locates the gasket on the flange face
to give the additional radial strength to prevent the gasket
blowout and acts as a compression limiter. In case of installing
the outer ring, it is very easy to install the gasket to flange
face because the end of outer ring will touch at bolts - Suitable
for use with flat face and raised face flanges. For class 900 and
above an internal ring is recommended.
Inner & Outer Rings Type
A inner ring and outer ring type gasket will give an additional
compression limiting stopper for gasket inner and outer side. It
will prevent the corrosions on flange face at annular space. -
Suitable for use with flat face and raised face flanges and
specified for high pressure / temperature service - Class 900 and
above or where corrosive or toxic media are present.
Product Description
1.Name:20in 150# SUS304 Metal Graphite Spiral Wound Gasket ASME
B16.20
2. Type| Type | Thickness(mm) |
| Basic form | 3.2 | 4.5 |
| With inner ring | | 4.5 |
| With outer ring | | 4.5 |
| With inner and outer ring | | 4.5 |
| Filler | Hoop | Inner ring | Outer ring |
| Asbestos | SUS 304 | Carbon steel | Carbon steel |
| Graphite | SUS 316 | SUS 304 | SUS 304 |
| PTFE | SUS 316L | SUS 316 | SUS 316 |
| | SUS 316L | SUS 316L |
| Flange type | Spiral Wound Gasket form |
| Flat face flange(F.F) | Gasket with an outer ring |
| Gasket with an inner and outer ring |
| Raised face flange(R.F) | Gasket with an outer ring |
| Gasket with an inner and outer ring |
