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Certain
chemical reactions require high temperatures. These reactions,
as well as many others operating at lower temperatures, would
benefit from faster heating and cooling rates for enhanced
productivity, and/or a high margin of thermal safety to minimize
the danger of process upsets or operator error.
To meet these needs, GMM Pfaudler has achieved another
Pfaudler first, Ultra-Glas 6500 ®,
a glass specially developed rated to 343 degrees C (650 degrees
F). This represents a large (200 degree F) improvement over
Pfaudler's internationally respected standard glass. Furthermore,
this expanded heat tolerance is accomplished in Ultra-Glas
6500 ®
without sacrificing abrasion, impact, or corrosion resistance,
nor is there any increase in product adherence.
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Key
Features |
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Pfaudler
Ultra-Glas 6500
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1 . Extends the range of Glasteel® applications.
2. Allows safe and easy handling of high temperature
processes
never before approved for Glasteel equipment.
3. Provides potential for reduced cycle time compared
to conventional
vessel glass.
4. Provides extended thermal shock protection for faster
heating
and cooling.
5. Provides increased operating safety margin through
its enhanced
thermal protection.
6. Is ideal for the higher temperatures required by today's
chemical
process applications.
The features of GMM Pfaudler Ultra-Glas 6500 ®
are the result of changes in glass composition
and material preparation, altered applications and firing procedures,
as well as changes in equipment design and materials of construction.
These changes permit trouble-free application of the required
high-stress coating and provide the highly corrosive-resistant
glass-lined surface for which Pfaudler has been respected for
years. Technical details of corrosion rates in common chemicals
and thermal operation limits are available on request.
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Temperature
Limits
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Although Ultra-Glas 6500 ®
has
a high degree of helpful compressive stress in the glass layer
there are definite limits to the level of thermal stress which
the glass can withstand without incurring damage:
Only two thermal conditions must be considered when determining
the temperature limits:
A. Introduction of media into a vessel.
B. Introduction of media into a jacket.
CAUTION: "Safe" operating temperatures vary with conditions.
Because so many variables are involved, temperature ranges are
given only as a guide. Where in practical, operation below the
maximum and above the minimum is recommended. Contact Pfaudler
for details.
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