SINOPEC 4521 Synthetic Refrigeration Compressor Oil is refrigeration system used lubricant blended with synthetic base oil and high performance multi-functional additives such as extreme pressure, anti-oxidizer, anti-corrosion agent and so on.
Advantages
* Outstanding thermal oxidation stability, preventing oil from damage in high temperature condition
* Good material adaptability, preventing oil from leaking out of system in application
* Excellent low temperature performance, extremely low pour point, low flocculation point of Freon, no wax formed and perfect fluidity under low temperature, ensuring application of system under various low temperature conditions
* Outstanding high/low temperature performance, ensuring normal operation of system in wide temperature range
* Good lubricity, protecting refrigeration compressor from wear
* Outstanding over-all performance, ensuring long term normal operation of refrigeration system
Performance
The product meets the following specifications:
* Q/SH303 175-2007
Applications
* Widely used to lubrication of rotary screw, reciprocating and rotary vane compressors in ammonia refrigeration system in food and chemical engineering industries, and also to lubrication of compressor using refrigerant R21 in cases of refrigerator, freezer, air conditioner, central air conditioner, refrigeration van, water chiller and refrigeratory
* Applied temperature range: -60° C~150° C, possibly reaching 170° C in short time
SINOPEC Transformer Oil is blended with highly refined mineral base oil and well-chosen anti-oxidizer. Without Polychlorinated Biphenyl (PCB), it is suitable for insulation and cooling for transformer, oil immersed switch and other insulation device of electrical appliances.The product comprises several grades such as 10, 25, 40, 45 according to its low temperature performance.
Advantages
1.Outstanding electrical insulation performance, effectively preventing occurrence of discharge in electric field
2.Good oxidation stability, effectively preventing formation of acidic material and sludge
3.Good thermal conductivity, ensuring effective cooling of transformer core and coiling
Performance
The product meets the following specifications:
1. GB 2536-90
2.Q/SH303 535-2009
3. IEC 60296-2003
Applications
As insulating and cooling medium for transformer of 330kV or below as well as electrical appliance with similar requirements
Typical properties
| Items |
Transformer oil |
| |
10 |
25 |
40 |
45 |
| Kinematic viscosity (40ºC), mm2/s |
8.931 |
9.395 |
9.912 |
9.252 |
| Flash point (Closed), ºC |
162 |
153 |
158 |
154 |
| Pour point, ºC |
-12 |
-27 |
-45 |
-51 |
| Freezing point, ºC |
- |
- |
- |
-55 |
| Breakdown voltage, Kv |
50 |
47 |
50 |
53 |
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