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Precautions for Design
Warning
1) Consult SMC if no leakage is allowed due to the environment, or if the operating fluid is not air.
2) Polycarbonate resin is used for the external parts including the bowl. Organic solvents including
thinner, acetone, alcohol and ethylene chloride; chemicals including sulphuric acid, nitric acid and
hydrochloric acid; cutting oil, synthetic oils, ester
-based compressor oil, alkali, kerosene, gasoline,
lock material of screw are harmful. Do not use the product where these are present.
Type
Chemical name
Application examples
Material
Polycarbonate
Nylon
Acid
Hydrochloric acid
Sulphuric acid,
Phosphoric acid
Acetic acid
Chromic acid
Acid washing liquid for
metals
△
×
Alkaline
Sodium hydroxide
(Caustic soda)
Potash
Calcium hydroxide
(Slacked lime)
Ammonia water
Carbotane of soda
Degreasing of metals
Industrial salts
Water-soluble cutting oil
×
〇
Inorganic salts
Sodium sulphide
Sulphate of potash
Sulphate of soda
-
×
△
Chlorine
solvents
Carbon tetrachloride
Chloroform
Ethylene chloride
Methylene chloride
Cleaning liquid for metals
Printing ink
Dilution
×
△
Aromatic series
Benzene
Toluene
Paint thinner
Coatings
Dry cleaning
×
△
Ketone
Acetone
Methyl ethyl ketone
Cyclohexane
Photographic film,
Dry cleaning,
Textile industries
×
×
Alcohol
Ethyl alcohol
IPA
Methyl alcohol
Antifreeze
Adhesives
△
×
Oil
Gasoline
Kerosene
-
×
〇
Ester
Phthalic acid dim ethyl
Phthalic acid diethyl
Synthetic oil
Anti-rust additives
×
〇
Ether
Methyl ether
Ethyl ether
Brake oil additives
×
〇
Amino
Methyl amine
Cutting oil
Brake oil additives
Rubber accelerator
×
×
Others
Thread-lock fluid
Sea water
Leak tester
-
×
△
〇
: Essentially safe.
△
: Some effects may occur.
×
: Effects will occur.
When the above factors are present, or there is some doubt, use a metal bowl for safety.
3) Avoid the application where charge and discharge of pressure to/from a standard bowl is switched
frequently. This may damage the bowl. A metal bowl is recommended in these cases.
4) Protect from ultra violet ray and radiation heat by shield.