TF Brochure.Gary - Flipbook - Page 27
Chemical Compatibility Guide
Please find shown in the tables on the following
In order to give guidance, the compatability of
pages a guide to the resistance ratings of the most
some products has been predicted from its
popular materials used in the manufacture of our
resistance to other chemicals which have a similar
products. These are shown for chemicals commonly
composition. Such predictions are shown using an
used in dosing applications. The symbols used to
asterisk (*) with the symbols listed above.
denote anticipated performance are:-
G
Good Resistance
F
Fair Resistance
L
Limited Resistance
P
Poor Resistance
In addition to the potential chemical compatibility
of a carrier or outer containment there are several
other factors that should be considered when
evaluating the suitability and longevity of a product
for example:-
• Pressures and temperatures - what are the test and maximum/minimum temperatures and
working pressures that can be expected taking into account the desired safety factors.
• Solutions and concentrations - what is the actual concentration at the point of transport being
considered and for example are the chemicals newly formulated, pre mixed or further diluted and
what is the likely time in contact with the media?
• Gases or volatile solutions - gases or gases in solutions can present a number of risks, even where
the carrier may be unaffected, there may be issues with levels of permeability & potential risks of fire,
explosion or to Health & Safety.
• Abrasive media - lime and other salts may often have levels of particulates carried in solution by
another fluid, these can cause wear and/or blockages with bends or Tee points in a line most vulnerable.
• Glue and jointing - limitations with solvent or connection/termination methods may limit
operating pressures and life expectancy or indeed rule out what would otherwise be an acceptable
option from a chemical point of view.
• Other - factors such as the potential UV exposure, frost and risk of damage from an aggressive external
environment are just some of the other elements that can have a significant impact on performance.
Please contact our technical sales team for a copy of our dual containment project enquiry sheet.
This will enable us to review your requirements against product data sheets and obtain any clarification
or confirmation from the manufacturer on the suitability of a product for your application.
Process Engineering Supplies
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