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The following is a chart of
common media with recommended "O"-Ring compounds that can be used
with the Polyimide and Elastomer diaphragms used in CCS pressure switches.
Where noted ‘All stainless steel’ a heliarc welded all stainless steel
pressure capsule is the only recommended type port. Reference
Parker Seal "O"-Ring Handbook.
Also see a new
Teflon®
Encapsulated O-ring media compatibility list
|
|
Media
|
O-Ring
Compound
|
ALL
SST
|
|
BUNA
N
|
EPR
|
Viton®
|
|
Acetic Acid
|
|
·
|
|
|
|
Acetone
|
|
·
|
|
|
|
Acetylene
|
|
·
|
|
|
|
Air
|
·
|
|
|
|
|
Ammonia, Anhydrous
|
|
|
|
·
|
|
Asphalt
|
|
|
·
|
|
|
Beer
|
·
|
|
|
|
|
Benzene
|
|
|
·
|
|
|
Black Liquor
|
|
|
·
|
|
|
Boric Acid
|
·
|
|
|
|
|
Brake Fluid
|
|
·
|
|
|
|
Brayco 719-R
|
|
·
|
|
|
|
Brayco 885
|
|
|
·
|
|
|
Bunker Oil
|
·
|
|
|
|
|
Butane
|
·
|
|
|
|
|
Carbon Dioxide
|
·
|
|
|
|
|
Carbon Monoxide
|
·
|
|
|
|
|
Callulube A60, 90, 100, 150, 200, 300 &
500
|
|
·
|
|
|
|
Chlorine
|
Chemical
Seal Required
|
|
Chlorobenzene
|
|
|
|
·
|
|
Citric Acid
|
·
|
|
|
|
|
Coke Oven Gas
|
|
|
|
·
|
|
Coolanol
|
·
|
|
|
|
|
Diesel
|
·
|
|
|
|
|
DI-ester-Lubricant, MIL-L-7808
|
|
|
|
·
|
|
Dowtherm A and E
|
|
|
|
·
|
|
Ethanol
|
·
|
|
|
|
|
Ethylene
|
·
|
|
|
|
|
Ethylene Glycol
|
·
|
|
|
|
|
Freon 11,12,113 and 114
|
·
|
|
|
|
|
Freon 21
|
|
|
|
·
|
|
Freon 22
|
|
·
|
|
|
|
Fyrquel
|
|
·
|
|
|
|
Fuel Oil
|
·
|
|
|
|
|
Gasoline
|
·
|
|
|
|
|
Helium
|
·
|
|
|
|
|
Houghto - Safe 271, 620, 1919, 1055 &1120
|
|
·
|
|
|
|
Houghto - Safe 5040
|
·
|
|
|
|
|
Hydraulic Oil (Petroleum Base)
|
·
|
|
|
|
|
Hydrocarbons
|
·
|
|
|
|
|
Hydrochloric Acid
|
Chemical
Seal Required
|
|
Hydrochloric Acid
|
|
|
·
|
|
|
Hydrogen
|
·
|
|
|
|
|
Hydrogen Sulphide
|
|
·
|
|
|
|
Isopropanol
|
|
·
|
|
|
|
JP-3,4,5 and 6
|
·
|
|
|
|
|
Kerosene
|
·
|
|
|
|
|
Linseed Oils
|
·
|
|
|
|
|
Liquid Petroleum Gas
|
·
|
|
|
|
|
Lubricating Oils (Petroleum Base)
|
·
|
|
|
|
|
Mercury
|
|
|
|
·
|
|
Methanol
|
·
|
|
|
|
|
Methyl Ethyl Ketone (MEK)
|
|
·
|
|
|
|
Mineral Oils
|
·
|
|
|
|
|
Naptha
|
|
|
·
|
|
|
Natural Gas
|
·
|
|
|
|
|
Nitric Acid
|
|
|
|
·
|
|
Nitrogen
|
·
|
|
|
|
|
Oleum Spirits
|
|
|
|
·
|
|
Oxygen
|
|
·
|
|
|
|
Ozone
|
|
·
|
|
|
|
Petroleum Oil, Crude
|
·
|
|
|
|
|
Phosphoric Acid
|
|
|
|
·
|
|
Propane
|
·
|
|
|
|
|
Propanol
|
·
|
|
|
|
|
Propylene
|
|
|
|
·
|
|
Pydraul 135,150,A200,312,AC,F-9 & 625
|
|
|
|
·
|
|
Shell Iris 902
|
·
|
|
|
|
|
Silicone Greases
|
·
|
|
|
|
|
Silicone Oils
|
·
|
|
|
|
|
Skydrol 500 and 7000
|
|
·
|
|
|
|
Soap Solutions
|
·
|
|
|
|
|
Sodium Hydroxide
|
|
|
|
·
|
|
Steam, Below 350°F
|
|
·
|
|
|
|
Steam, Above 350°F
|
|
|
|
·
|
|
Stoddard Solvent
|
·
|
|
|
|
|
Sulphuric Acid
|
|
|
·
|
|
|
Toluene
|
|
|
·
|
|
|
Transformer Oil
|
·
|
|
|
|
|
Transmission Fluid Type A
|
·
|
|
|
|
|
Trisodium Phosphate
|
·
|
|
|
|
|
Turbine Oil
|
·
|
|
|
|
|
Turpentine
|
·
|
|
|
|
|
Water
|
|
·
|
|
|
Viton® is a trademark of DuPont Dow Elastomers
|
