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About
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PTFE SPIRAL WOUND GASKET
HENGSENG NO.: HLG300 SERIES |
01 02
03 04 |
The
gasket uses unsintered PTFE tapes as the filler material.
The PTFE filler provides superior chemical resistance
and sealabining with strongly corrosion resistant metals,
it can be applied for corrosive fluids, pure oxygen
gas and vacuum lines.
Feature
1. Sealability is superior to that of other SWG gasket.
Usage is possible even with vacuum lines.
2. Excellent corrosion resistance makes it suitable
for almost all types of fuild by selecting appropriate
hoop materials.
3. Not used for glass or rubber lined flange, glass
or porcelain flange. |
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| Service Range |
| fluid |
Maximum service temperature °C |
Maximum service pressure |
| Water type fluids |
300 |
Class 600 |
| Oil type fluids |
300 |
Class 600 |
| Gas type fluids |
300 |
Class 600 |
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GRAPHITE SPIRAL WOUND GASKET
HENGSHENG NO.: HLG400 SERIES |
The
gasket uses expanded graphite tape as the filler material
which provides superb sealability even under severe
conditions such us high temperature, high pressure,
cryogenic temperatures, heat cycles, temperature cycles
and so on.
Feature
1. Sealing, especially gas sealing, is superior to that
of asbestos gaskets.
2. Little deterioration of the filler material at high
temperatures, outstanding long-term sealability even
under high temperatures and high pressures.
3. Sealing remains outstanding even under servere conditions
such as pressure fluctuations and heat cycles.
4. Excellent sealability is maintained making it possible
to apply this for corrosive fluids by selecting the
appropriate materials.
5. Outstanding sealing even at cryogenic temperatures.
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| Service Range |
| fluid |
Maximum service temperature °C |
Maximum service pressure |
| Water type fluids |
450(650) |
Class 2500 |
| Oil type fluids |
450(800) |
Class 1500 |
| Gas type fluids |
450(800) |
Class 1500 |
| Cryogenic temperature fluid |
-240 |
20 Mpa |
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| Notes: The values in brackets()
are maximum service temperature under a non-oxidizing atmosphere.
When using with RF flanges in open air, the Max. service temperature
is 450°C. |
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