|   GB-3137-4 Alkylbenzene refrigeration lubricant 
 PRODUCT DESCRIPTIONGB-3137-4 is a high quality synthetic alkylbenzene  (AB) refrigeration lubricant and is intended for particularly arduous conditions.  The lubricant is designed to be used with halogenated refrigerants in both  refrigeration and air-conditioning applications. GB-3137-4 is an excellent lubricant for systems using R-600a£¬R-22, R-123 and R-502. This oil may also  be used where high refrigerant lubricant solubility is required. GB-3137-4 may be recommended for use  in piston  compressor refrigeration systems.
 Some advantages of using the GB-3137-4 over the traditional mineral  oils are:
 ¡¤Better Oil Return£¬Superior Chemical and Thermal Stability
 ¡¤Better System Efficiency£¬Lower Foaming Tendency
 ¡¤Lower Floc Point£¬Excellent  Miscibility£¬Superior Cleanliness
 Typical Physical Properties*
 
        
          | Appearance
 | Colorless    transparent liquid  |  
          | Density@20¡æ£¬g/cm3 | 0.856 |  
          | Viscosity@40¡æ£¬mm2/s | 4.41 |  
          | Viscosity@100¡æ£¬mm2/s | 1.44 |  
          | Flash    Point(open cup)£¬¡æ  | 144 |  
          | Fire Point£¬¡æ  | 156 |  
          | Pour Point£¬¡æ  | -72 |  
          | Copper Strip Test£¬100¡æ£¬3hr  | 1 |  
          | Foaming£¬24¡æ  | 0/0 |  * The above data is typical data, not as product specifications.    |