Submersible explosion-proof pumps for slurry equipped with an agitator for transport of solid matters. Intended for explosion-proof applications in coal mines, oil/gas refineries and similar worksites under an "explosive atmosphere".
| Discharge bore mm | 100 |
| Phases | 3 |
| Motor output kW | 3,7 |
| Head max. m | 14,8 |
| Capacity max. l/min | 1470 |
| Max. solid handling ø mm | 21 |
| ATEX available | Yes |
| Discharge bore mm | 100 |
| Phases | 3 |
| Motor output kW | 5,5 |
| Head max. m | 16,5 |
| Capacity max. l/min | 2040 |
| Max. solid handling ø mm | 28 |
| ATEX available | Yes |
| Discharge bore mm | 100 |
| Phases | 3 |
| Motor output kW | 7,5 |
| Head max. m | 17,3 |
| Capacity max. l/min | 2220 |
| Max. solid handling ø mm | 33 |
| ATEX available | Yes |
| ø Discharge bore mm | 100 |
| Discharge Connection | Threaded flange |
| Impeller | Semi-open type impeller |
| Shaft Seal | Double mechanical seal |
| Bearings | Shielded ball bearings |
| Impeller | Chromium iron casting |
| Casing | Grey iron casting EN-GJL-200 |
| Suction Plate | Grey iron casting EN-GJL-200 |
| Shaft Seal | Silicon carbide in oil bath |
| Type of Fluid | Spring water, Rain water, Ground water, Sand carrying water |
| Temperature | 0-40°C |
| Type, Poles | Induction motor, 4 poles, IP68 |
| Insulation | Insulation class H |
| Phase / Voltage | 3-phase / 400V / 50Hz / d.o.l. |
| Motor Protector (built-in) | Circle thermal cut-out |
| Lubrication | Turbine oil (ISO VG32) |
| Explosion-proof code | IECEx: Ex d I Mb, EX I M2 Ex d I Mb |
| Explosion-proof code | IECEx: Ex d I Mb, EX I M2 Ex d I Mb |
| Casing | Grey iron casting EN-GJL-150 |
| Shaft | Stainless steel EN-X30Cr13 |
| Cable | NSSHÖU (screened) |
| Model | A | A1 | B | B1 | D | H | W1 |
|---|---|---|---|---|---|---|---|
| KRDX33.7 | 415 | 356 | 701 | 635 | 369 | 829 | 290 |
| KRDX45.5 | 446 | 387 | 745 | 644 | 416 | 838 | 300 |
| KRDX47.5 | 446 | 387 | 775 | 674 | 416 | 868 | 300 |
KRDX are submersible slurry pumps equipped with agitators recognized by both IECEx and ATEX. With the impeller, suction plate, and agitator made of high-chromium cast iron and the pump casing and motor frame made of ductile cast iron, KRDX-series pumps are excellent in terms of wear resistance, and thus suited for drainage of mud-water, sediment-containing water, and various kinds of liquid slurry. In addition, KRDX-series pumps can be built to specifications of rated voltages of 380 V to 1000 V.
