| 
 The reinforced pump is a kind of tubing pump which add an outer tube. Features:  This pump has strong rigidity and the ability to resist damage, easy to transport and moving; Suitable for used in improved well.  MAIN SPECIFICATIONS AND PARAMETERS  
 Basic type  | 
 Pump dia.    | 
 Plunger length series   | 
 Extension nipple length(m)   | 
 Outer dia. Of coupling oil tubing(mm)   | 
 Plunger stroke range(mm)   | 
 Pump constant   | 
 Dia. Of connecting sucker rod(mm)   |  
| 
 Nominal dia. (mm)   | 
 Basic type   |  
| 
 25(20)-106   | 
 28   | 
 26.99   | 
 0.6  0.9  1.2  1.5   | 
 0.3  0.6  0.9   | 
 60.3,73.0   | 
 0.6-6   | 
 0.886   | 
 16/19   |  
| 
 25(20)-125   | 
 32   | 
 31.75   | 
 60.3,73.0   | 
 0.6-6   | 
 1.140   | 
 16/19   |  
| 
 25(20)-150   | 
 38   | 
 38.1   | 
 60.3,73.0   | 
 0.6-6   | 
 1.642   | 
 16/19   |  
| 
 25(20)-175   | 
 44   | 
 44.45   | 
 60.3,73.0   | 
 0.6-6   | 
 2.235   | 
 19   |  
| 
 25-225   | 
 57   | 
 57.15   | 
 73.0   | 
 0.6-6   | 
 3.649   | 
 22   |    |