ERVING SEAL ENTERPRISES CO., LTD
        .jpg)
| Model | d | A | C | D1 | D2 | D3 | Remark | 
| 7CCS-0 | 12 | 7.1 | 5.5 | 26 | 30 | 35 | wave spring | 
| 7CJW-0 | 15.918 | 10.1 | 7 | 31.5 | 34.2 | 39.5 | wave spring | 
| 7CJW-1 | 15.918 | 10.1 | 7 | 31.5 | 36.5 | 41 | wave spring | 
| 7CS-0 | 15.918 | 12.2 | 7 | 31.5 | 34.2 | 39.5 | |
| 7CS-1 | 15.918 | 10.8 | 8 | 31.5 | 36.5 | 41 | |
| 7CS-0 | 17 | 13.5 | 8 | 33.5 | 35 | 41 | |
| 7CS-0 | 19 | 14 | 9 | 36.5 | 38 | 46 | |
| 7CS-0 | 20 | 12.5 | 10 | 36.5 | 40 | 46 | 
Operation Conditions:
              Temperature:-35℃~ 135℃
              Pressure : ≤0.3MPa
              Speed : φ12≤7200r/min; φ16≤6500r/min; φ17≤5800r/min;
              φ19≤5500r/min;φ20≤5000r/min
              Medium:clean water, gas engine antifreeze
            
Standard Materials:
              Parts & Spring :Stainless Steel
              Rubber parts :HNBR 
              Stationary Ring :Sillicon Carbide 
              Rotary Ring :Sillicon Carbide
              Metal parts:SUS 304 / SUS316
            
Applications:
              ◆ Auto cooling pump
              ◆ Household pump
              ◆ General pump
              ◆ Small-typed centrifugal pump
            
Specification:
              Temperature: - 35℃ ~ 135℃ 
              Pressure : ≤0.3MPa 
              Speed : φ12≤7200r/min; φ16≤6500r/min; 
              φ17≤5800r/min;φ19≤5500r/min; 
              φ20≤5000r/min