



Marine pumps
DSF Horizontal ONE-ROTOR screw pumps
Construction
This pump is of the horizontal one-rotor screw type.
These types of pumps, which are the combination of rotors and rubber stator, deliver the highest performance in the transfer of many types of liquids
Application
- Bilge & Sludge pump
- Other
Principal particulars
| MODEL | DSF-25 | DSF-30 | DSF-40 | DSF-60S | 
|---|---|---|---|---|
| Rotation | Clockwise when viewed from driver end | |||
| Suction bore[mm] | 50 | 50 | 65 | 100 | 
| Discharge bore[mm] | 50 | 50 | 65 | 100 | 
| Stuffing box seal | Gland packing | |||
| Weight[kg] | Refer to the outline drawing | |||
Performance selection charts

Outline Dimension
| MODEL | BORE | DIMENSIONS [mm] | MOTOR POWER [kw]  | PUMP WEIGHT [kg]  | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SUC. | DIS. | A | B | C | D | E | F | H | I | K | L | M | P | S | X | Z | |||
| DSF-25 | 50 | 50 | 470 | 110 | 225 | 335 | 145 | 85 | 705 | 70 | 670 | 810 | 460 | 895 | 19 | -13 | 500 | 0.4~0.75 | 165 | 
| DSF-30 | 50 | 50 | 538 | 110 | 190 | 390 | 145 | 85 | 725 | 70 | 670 | 810 | 460 | 895 | 19 | 55 | 500 | 0.75~1.5 | 175 | 
| DSF-40 | 65 | 65 | 501 | 125 | 243 | 339 | 170 | 100 | 752 | 70 | 720 | 860 | 460 | 960 | 19 | 9 | 500 | 0.75~2.2 | |
| DSF-60 | 100 | 100 | 831 | 165 | 250 | 457 | 190 | 150 | 897 | 100 | 1000 | 1300 | 560 | 1450 | 22 | 58 | 600 | 2.2~5.5 | |
Standard Sectional drawing

| PART No.  | NAME OF PART | MATERIAL | REQ.No. FOR 1 PUMP  | |
|---|---|---|---|---|
| NAME | KS | |||
| 101 | CASING | CAST IRON | GC200 | 1 | 
| 207 | END PIECE | CAST IRON | GC200 | 1 | 
| 401 | SHAFT | STAINLESS STEEL | STS304 | 1 | 
| 403 | COUPLING KEY | CARBON STEEL | SM45C | 1 | 
| 412A | BALL BEARING | BEARING STEEL | 1 | |
| 412B | BALL BEARING | BEARING STEEL | 1 | |
| 420 | BEARING BUSH | STAINLESS STEEL | STS304 | 1 | 
| 421 | STATOR | NBR+SS41 | 1 | |
| 422 | ROTOR | STAINLESS STEEL+HiCr | 1 | |
| 423 | CONNECTOR ROD | STAINLESS STEEL | STS304 | 1 | 
| 424 | O-RING | RUBBER | 1 | |
| 425 | O-RING | RUBBER | 2 | |
| 426 | PIN | STAINLESS STEEL | STS304 | 1 | 
| 427 | SHEATH | RUBBER | 1 | |
| 428 | CONNECTOR BUSH | STAINLESS STEEL | STS304 | 1 | 
| 501 | BEARING CASE | CAST IRON | GC200 | 1 | 
| 502 | BEARING COVER | CAST IRON | GC200 | 1 | 
| 507A | OIL SEAL | RUBBER | NBR | 1 | 
| 507B | OIL SEAL | RUBBER | NBR | 1 | 
| 601 | MECHANICAL SEAL COVER | STAINLESS STEEL | STS304 | 1 | 
| 602 | MECHANICAL SEAL | 1 set | ||
| 609 | FIXING SEAT | STAINLESS STEEL | STS304 | 1 | 
| 610 | O-RING | RUBBER | 2 | |
| 611 | SEAL CASE | CAST IRON | GC200 | 1 | 
| 701 | GRAND PACKING | SEMI METALLIC | 1 set | |
| 703 | GRAND | CAST IRON | GC200 | 1 | 
| 704 | GRAND CASE | CAST IRON | GC200 | 1 | 
| 705 | O-RING | RUBBER | 1 | |
| 903 | TIE BOLT | MILD STEEL | SS400 | 4 | 















