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PROCESS GAS AND MATERIAL
COMPATIBILITY GUIDE FOR COMPRESSORS
The information presented
below is meant to serve only as a guide. It is intended to provide the
user with a general idea for the types of materials which have typically
been compatible with the AMSOIL compressor oils, and also those materials
which should have minimum contact with these products. Changes in methods
of manufacture, application, degree of exposure and severity of environment
can sometimes cause unpredictable effects in a material's compatibility.
PC Series
The AMSOIL PC Series Oils
are compatible with seals, paints, plastics and virtually all materials
that would be used in compressor applications. They are satisfactory
for use with all materials that are compatible with petroleum oils.
DC Series
The AMSOIL DC Series Oils
are diester-based products. This product is the focus of the material
compatibility chart. It has some compatibility issues that should be
addressed when recommending this product for an application.
Other Compressor Oils
AMSOIL PC Series and DC
Series Compressor Fluids are compatible with petroleum, diester-based
and synthetic hydrocarbon (PAO) based compressor fluids. Glycol and
silicone compressor fluids are incompatible with petroleum and other
synthetic oils, therefore also incompatible with AMSOIL Compressor Oils.
Because of the DC Series' good polarity, AMSOIL recommends using the
DC Series as a flushing agent and as the replacement compressor oil
when changing out glycol or silicone based compressor oil. To change
from these types of fluid to AMSOIL, please refer to the Procedure for
Flushing Compressors. It is recommended that a sample be taken after
the system is in operation with the new fluid to ensure a complete change
out.
Seals, Paints, Plastics and Polycarbonate
Bowls
AMSOIL DC Series Compressor Oils tend to
make polycarbonate bowls brittle and subject to fracture and rupture.
When using the DC Series in conjunction with polycarbonate bowls,
cover the bowls with metal bowl guards or replace them with metal bowls.
DEFINITIONS
Compatible: hose
materials which are generally unaffected by diester-based lubricants.
Marginal: Those
materials for which the effect on them is dependent on their use, and
composition, which can vary. Evaluation of the specific material under
simulated and/or actual operating conditions is suggested prior to use.
Not Recommended:
Materials which have been found to
be adversely affected under most circumstances and should not be considered
for use where excessive contact with the DC Series is involved.
The compatibility reference
guide is directed toward the use of the DC Series Oils.
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AMSOIL
DC SERIES COMPATIBILITY CHART |
Compatible
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Marginal
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Not Recommended
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Paints
Epoxy, baked phenolic, oil-resistant
alkyd, two-component urethane, moisture-cured urethane
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Paints
Phenolic, single-component urethane, industrial
latex
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Paints
Acrylic, latex (household), vinyl (PVC), varnish,
lacquer, polyurethane
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Plastics
Nylon, fluorocarbon (Teflon®), polyacetal (Delrin®,
Celcon®), polybutylene terephithalate (PBT), polypropylene (high
density)
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Plastics
Polyurethane, polyethylene, phenylene oxide (Noryl),
polycarbonate (Lexan), polysulfone
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Plastics
Polystyrene, polyvinyl chloride, ABS (acrylonitrile/butadiene/styrene),
polycarbonate (bowls)
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Rubbers/Seals
Fluorocarbon (Viton®), nitrile rubber (Buna-N,
NBR)*, fluorosilicone rubber, polysulfide (Thiokol), polyester
(Hytrel)
*High nitrile (>36% acrylonitrile)
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Rubbers/Seals
Nitrile (Buna-N, NBR)*, polyurethane, ethylene-propylene
teropolymer (EPDM), epichlorohydrin, polyacrylate rubber, silicone
rubber
*Medium nitrile (30-36% acrylonitrile)
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Rubbers/Seals
Polychloroprene (Neoprene), natural rubber, styrene-butadiene
rubber (SBR, Buna-S), butyl rubber, chlorosulfonated polyethylene,
nitrile rubber (Buna-N, NBR)*
*Low nitrile (<30% acrylonitrile)
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Metals
Steel and alloys, aluminum and alloys, tin, nickel,
inconel, monel
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Metals
Cadmium, zinc, lead
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Metals
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Process Gases Suitable for Use
with DC Series and PC Series Oils
Inert or Reducing Gases
Nitrogen, hydrogen, helium,
carbon monoxide, carbon dioxide (dry), ammonia*.
*DO NOT USE THE DC SERIES WHEN
COMPRESSING AMMONIA.
Hydrocarbon Gases
Ethylene, ethane, methane,
propane, butane, propylene, butylene, natural gas, benzene, butadiene.
Other Gases
Furnace (crack gas), hydrogen
sulfide (dry), sulfur hexafluoride, synthetic gas, sulfur dioxide.
Process Gases Not Recommended
Oxygen, halogen gases,
hydrogen chloride.
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