Previous Name: Shell Clavus Oil S 68
Shell Refrigeration Oil S2 FR-A 68
Refrigerator Compressor Lubricant
•RELIABLE PERFORMANCE
•COMPATIBLE WITH NH3 (AMONIAC)
Shell Refrigeration Oil S2 FR-A is a low
miscibility compressor lubricant intended for use in refrigeration
compressors using Ammonia refrigerant. It is formulated from specially
refined paraffinic base oils in combination with additives selected to
minimise system deposits and provide long service life.
Performance benefits
•System efficiency
Shell Refrigeration Oil S2 FR-A has been
specially optimised for use in systems where oil separation is
required. It has been designed to reduce “light end” oil carryover; this
minimises oil thickening in the compressor and reduces oil coating of
internal evaporator surfaces thus maintaining overall system efficiency.
•Extended maintenance intervals
Shell Refrigeration Oil S2 FR-A has
excellent high temperature and oxidation stability providing long
service life even where high compressor discharge temperatures are
found.
In addition it is formulated to provide excellent
control of deposit and sludge formation resulting in extended oil drain
intervals in comparison with conventional mineral oil based refrigerator oils.
It can also be used in systems using hydrocarbons such as propane (R290)
Shell Refrigeration Oil S2 FR-A is not recommended for use with CFC, HCFC or HFC refrigerants such as R12, R22 or R134a.
•Seal compatibility
Shell Refrigeration Oil S2 FR-A is compatible with all commonly used sealing materials designed for use with mineral oils.
•Lubricant compatibility
Shell Refrigeration Oil S2 FR-A is completely miscible with mineral oil, alkylated benzene and PAO based lubricants.
Specifications and Approvals
Shell Refrigeration Oil S2 FR-A meets the requirements of DIN 51503 KAA and KE.
Applications
•Refrigerator compressors
Shell Refrigeration Oil S2 FR-A is recommended for use in open-, semi-open
and hermetic compressors in domestic, commercial and industrial
refrigeration systems. It can be used in both rotary and reciprocating
compressor types
•Refrigerant compatibility
Shell Refrigeration Oil S2 FR-A is
recommended for use with ammonia (R717) based refrigeration systems
where it offers excellent performance, even under high compressor
discharge temperatures, or down to evaporation temperatures of -30°C.
Health and Safety
Guidance on Health and Safety is available on the
appropriate Material Safety Data Sheet, which can be obtained from your
Shell representative.
Protect the environment
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.
Advice
Advice on applications not covered in this leaflet may be obtained from your Shell representative.
Typical Physical Characteristics
ISO Viscosity Grade
|
ISO 3448
|
68
|
||
Refrigerator oil
|
D IN 51503
|
KAA, KE
|
||
Kinem atic Viscosity
|
ISO 3104
|
|||
at 40°C
|
m m 2/s
|
68
|
||
at 100°C
|
m m 2/s
|
9
|
||
Flash Point CO C
|
°C
|
ISO 2592
|
23 2
|
|
Pour Point
|
°C
|
ISO 3016
|
||
D ensity at 15°C
|
kg/m 3
|
ISO 12185
|
86 2
|
|
Neutralisation number
|
mgKOH/g
|
A STM D 664 (TA N )
|
||
completely miscible with
|
||||
Miscibility with R290
|
hydrocarbon based
|
|||
refrigerants
|
||||
These characteristics are typical of current
production. Whilst future production will conform to Shell's
specification, variations in these characteristics may occur.
Shell Lubricants
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Page 2 of 2
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04/06/2010
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