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|SUNISO 3GS:||The Density Of 15℃g/cm3 ASTM D 1250 0.909||SUNISO 4GS:||The Density Of 15℃g/cm3 ASTM D 1250 0. 915|
|SUNISO 5GS:||The Density Of 15℃g/cm3 ASTM D 1250 0.921|
THE SUNISO Refrigerant OIL:
SUNISO GS Series refrigeration oil (3 GS, 4 GS, 5 GS) is the world famous products with a history of more than 75, has been all over the world air conditioners, refrigerators, freezers, cold storage, central air conditioning, automotive air-conditioning compressor manufacturer approval and approved.In China, more than 50% of the main air conditioners, refrigerators and automobile air conditioning compressor using the SUNISO GS series refrigeration oil.The sun SUNISO GS high quality refrigeration oil, is famous in the world, been recommended as the best choice of refrigeration compressor oil.Has won the world's major compressor manufacturers.
Frozen oil use:SUNISO GS OILS Series of frozen oil is on the air conditioner, refrigerators, freezers, freezer refrigeration system can give full play to the best performance.As the world's leading advanced refrigeration oil.The SUNISO GS series is best suited for as (R22, r114), natural refrigerant (R600A, R717, R290), and CFC refrigerant (R12) model;Of viscosity range: ISOVG12 - VG100;Can be used in reciprocating, rotating and vortex volume type and turbine and compressor.
◇ Chemical stability, not in the system with refrigerant or other chemical materials.
◇ Thermal stability to the operation of the compressor to keep more clean, reduce sediment formation.
◇ Low wax content, make compressor play extremely low temperature refrigeration efficiency, without produces an wax deposit, in order to avoid blocking the refrigeration system.
◇ High dielectric strength, to ensure good insulating properties.
For each moving parts in the refrigeration compressor lubrication oil, known as frozen oil, also known as lubricating oil.In accordance with the standards of oil chemical industry, at present, the production of frozen oil has 13, 18, 25, 30, and the enterprise standard size 40 five brands of frozen oil.Among them, the widespread adoption of refrigerating compressor lubricants have 13, 18 and 25.R12 compressor generally selected 18, generally choose 25 R22 compressor.
In the compressor, refrigeration oil main lubrication, sealing, cooling and energy regulation four functions.
(2) Sealed refrigeration oil sealing role in the compressor, between the piston and cylinder surface in the compressor, the rotating seal is reached between the bearing, in order to prevent the refrigerant leakage.
(3 )Cooling refrigeration oil in the compressor lubrication between moving parts, can take away the heat generated in the process of work, to keep all the moving parts at a low temperature, so as to improve the efficiency of the compressor and the use of reliability.
(4) Energy regulation for compressor with energy regulator, use frozen oil hydraulic as to adjust the power of mechanical energy.
To protect the ozone layer, was made in the international air conditioning refrigerant, appeared a variety of alternative refrigerants, its freezing oil also has changed accordingly.To air conditioning alternative refrigerants for everything/R407c, R410a, its replacement using PAG, POE, respectively.
The abbreviation of POE is Polyol Ester,Also known as polyester oil, it is a kind of synthetic polyol ester oil.The abbreviation of PAG is Polyalkylene Glycol, is a kind of synthesis of poly (ethyl) diol kind of lubricating oil.Among them, the POE oil not only can well used in HFC refrigerant system, can also be used for hydrocarbon refrigeration.PAG oils available HFC, hydrocarbons and ammonia as refrigerant in the refrigeration system lubricating oil.
Because of different occasions and refrigerants, refrigeration equipment choice of frozen oil is different also.The requirement of refrigeration oil has the following several aspects:
(2)choose corresponding different freezing oil.If the frozen oil viscosity is too large, can make the mechanical friction power, the friction heat and increase starting torque.On the other hand, if the viscosity is too small, will not needed for the formation of oil film between the moving parts, which can not meet the lubrication and cooling effect.
(3)precipitation of paraffin in the frozen oil, make the temperature of the lubricating oil becomes cloudy.Refrigeration equipment used, the cloud point of frozen oil should be lower than the refrigerant evaporation temperature, otherwise it will cause throttle valve block or affect the heat transfer performance.
(4)Other such as chemical stability and resistance to oxygen, water and mechanical impurities and insulation performance.
(5)Flash flash frozen oil refers to oil steam heated to it the lowest temperature occur when in contact with the flame lighter.Refrigeration equipment used in the refrigeration oil flash point must be higher than the exhaust temperature of 15 ~ 30 ℃ above, lest cause burning and coking of lubricating oil.
Oil temperature generally keep between 45 ~ 60 ℃, the highest should not be more than 70 ℃, and stable, if the oil temperature has been unstable and slowly rising, then have a fault.The oil temperature too low or too high will worsen lubricating oil, at the same time, also often heralds the arrival of the predicted failure.Key is refers to the oil pressure difference, frozen oil pressure due to various reasons cause oil pump oiling, is can't afford to build oil pressure difference.Oil pressure size according to the structure of the compressor.Vertical compressor of external gear oil pressure difference is 0.5 ~ 1.5 MPa, the new series compressor oil pressure difference is 0.5 ~ 1.5 MPa.New purchase of compressor in operation, debugging using oil pressure difference often on the high side, in order to increase the amount of lubricating oil, better finish the moving parts such as cylinder period, prolong the service life of the machine..
|Typical project||Test method for||SUNISO 3GS||SUNISO 4GS||SUNISO 5GS|
|The density of 15℃g/cm3||ASTM D 1250||0.909||0.915||0.921|
|chroma ASTMmm2/s||ASTM D 1500||L0.5||L1.0||L1.0|
|Kinematic viscosity 40℃mm2/s||ASTM D 445||29.5||54.9||94.6|
|Kinematic viscosity 100℃||ASTM D 445||4.31||5.97||7.78|
|ASTM D 92||178||188||208|
|ASTM D 97||-40||-35||-27.5|
|The total acid value mg KOH/g||ASTM D 974||0.01||0.01||0.01|
|ASTM D 611||75.4||79.8||80.4|
|ASTM D 4928||20||20||20|