Structural featrures:  With fluid dynamic groove. Multi_spring, balanced and stationary. With thread pumping mechanism. With stationary diversion sleeve. With floating diversion sleeve(DSDHFB). 
   Application scope:  Pressure: ¡Ü5.0MPa Shaft diameter: §æ50~§æ250mm Temperature: Pump chamber: ¡Ü+200¡æ Seal chamber:0~+70¡æ  Linear speed: DSDHF:¡Ü50m/s DSDHFB: ¡Ü70m/s Application: clear water, oil and other slightly corrosive liquids.  
  
| Model | 
 D1  | 
 D2  | 
 D3  | 
 D4  | 
 L1  | 
 L2  | 
 L3  |  
| DSDHF-54 | 
 54  | 
 47  | 
 115  | 
 165  | 
 40.5  | 
 40.5  | 
 105  |  
| DSDHF-64 | 
 64  | 
 57  | 
 125  | 
 175  | 
 40.5  | 
 40.5  | 
 105  |  
| DSDHF-74 | 
 74  | 
 67  | 
 135  | 
 185  | 
 40.5  | 
 40.5  | 
 105  |  
| DSDHF-84 | 
 84  | 
 77  | 
 145  | 
 195  | 
 42.5  | 
 42.5  | 
 115  |  
| DSDHF-94 | 
 94  | 
 87  | 
 155  | 
 205  | 
 42.5  | 
 42.5  | 
 115  |  
| DSDHF-04 | 
 104  | 
 97  | 
 165  | 
 215  | 
 42.5  | 
 42.5  | 
 115  |  
| DSDHF-117 | 
 117  | 
 111  | 
 187  | 
 250  | 
 44  | 
 40  | 
 124  |  
| DSDHF-130 | 
 130  | 
 124  | 
 200  | 
 270  | 
 43  | 
 39  | 
 121  |  
| DSDHF-147 | 
 147  | 
 144  | 
 215  | 
 285  | 
 47  | 
 45  | 
 125  |  
| DSDHF-180 | 
 180  | 
 142  | 
 220  | 
 290  | 
 50  | 
 50  | 
 130  |  
| DSDHF-191 | 
 191  | 
 157  | 
 245  | 
 315  | 
 50  | 
 50  | 
 130  |  
| DSDHF-204 | 
 204  | 
 177  | 
 265  | 
 330  | 
 50  | 
 50  | 
 130  |    
| Model | 
 D1  | 
 D2  | 
 D3  | 
 D4  | 
 L1  | 
 L2  | 
 L3  |  
| DSDHFB-84 | 
 84  | 
 77  | 
 145  | 
 195  | 
 42.5  | 
 42.5  | 
 115  |  
| DSDHFB-94 | 
 94  | 
 87  | 
 155  | 
 205  | 
 42.5  | 
 42.5  | 
 115  |  
| DSDHFB-104 | 
 104  | 
 97  | 
 165  | 
 215  | 
 42.5  | 
 42.5  | 
 124  |  
| DSDHFB-117 | 
 117  | 
 111  | 
 187  | 
 250  | 
 44  | 
 40  | 
 125  |  
| DSDHFB-130 | 
 130  | 
 124  | 
 200  | 
 270  | 
 43  | 
 39  | 
 121  |  
| DSDHFB-147 | 
 147  | 
 144  | 
 215  | 
 285  | 
 47  | 
 45  | 
 130  |  
| DSDHFB-180 | 
 180  | 
 175  | 
 265  | 
 350  | 
 46.5  | 
 45  | 
 125.5  |  
| DSDHFB-191 | 
 191  | 
 186  | 
 295  | 
 410  | 
 76  | 
 65  | 
 190  |  
| DSDHFB-204 | 
 204  | 
 200  | 
 325  | 
 440  | 
 76  | 
 65  | 
 190  |  
| DSDHFB-217 | 
 217  | 
 215  | 
 355  | 
 470  | 
 76  | 
 85  | 
 200  |  
| DSDHFB-247 | 
 247  | 
 242  | 
 385  | 
 500  | 
 85  | 
 85  | 
 220  |  
| DSDHFB-265 | 
 265  | 
 260  | 
 415  | 
 530  | 
 85  | 
 85  | 
 220  |   
  |