The
materials used to manufacture Excel® Cartridges, Housings
and Accessories are carefully chosen for their resistance
to a wide range of chemical solutions. However,
due to the number and combinations of chemicals available,
knowledge about compatibility between the fluid to be
filtered and the filtration system employed is essential.
Chemical compatibility is affected by many variables
including time, temperature, pressure and concentration.
GENERAL
CHEMICAL RESISTANCE |
Material |
Resistance |
Maximum
Permissible
Temperature (Water) |
| Constant |
Short
Term |
| Polyvinyl
Chloride (PVC, UPVC) |
Resistance
to most solutions of acids, alkalis and salts and
organic compounds miscible with water. Not
resistant to aromatic and chlorinated hydrocarbons. |
60°C
140°F |
60°C
140°F |
| Chlorinated
Polyvinyl Chloride (CPVC) |
Can
be used similarly to PVC but at increased temperatures. |
90°C
195°F |
110°C
230°F |
| Polypropylene
(PP) |
Resistant
to water solutions of acids, alkalis and salts as
well as to a large number of organic solvents.
Unsuitable for concentrated oxidizing acids. |
60°C
140°F |
80°C
175°F |
| Polyvinylidene
(PVDF) |
Resistant
to acids, solutions of salts, aliphatic, aromatic
and chlorinated hydrocarbons, alcohols and halogens.
Conditionally suitable for ketones, esters, ethers
organic bases and alkaline solutions. |
90°C
195°F |
110°C
230°F |
| Polytetrafluroethylene
(PTFE) |
Resistant
to all chemicals list in chart*. |
140°C
285°F |
150°C
300°F |
| Nitrile
Rubber (Buna-N) |
Good
resistance to oil and gasoline. Unsuitable
for oxidizing agents. |
90°C
195°F |
120°C
250°F |
Butyl
Rubber,
Ethylene Propylend Rubber
(EPDM, EPR) |
Good
resistance to ozone and weather. Especially
suitable for aggressive chemicals. Unsuitable
for oils and fats. |
90°C
195°F |
120°C
250°F |
Chloroprene
Rubber
(Neoprene®) |
Chemical
resistance very similar to that of PVC and between
that of Nitrile and Butyl rubber. |
80°C
175°F |
110°C
230°F |
Fluorine
Rubber
(Viton®) |
The
best chemical resistance to solvents of all elastomers. |
150°C
300°F |
200°C
390°F |
*A comprehensive chemical chart is available
upon request from Eden Excel®. Please contact
us via Email,
fax or telephone to receive a copy of this chart.
NOTE:
This chart should be used only as a guide to aid in
selecting appropriate filter cartridges and filter vessels.
Eden Excel® makes no guarantee as to its correctness,
accuracy and completeness. Field results can,
and often do, differ from laboratory results due to
an unlimited number of variables. The best compatibility
information is obtained by subjecting test samples to
actual operating conditions. The choice of product
and/or products by utilizing this chart is the sole
responsibility of the user.
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