Reference image. Final construction follows the confirmed model and quotation.
High-Lift Sewage Pumps
DFSH422 High-Head Submersible Drainage Pump - 100 mm Outlet
Model: DFSH422
DFSH422 high-head submersible drainage pump with 22 kW motor and 100 mm discharge. Catalog duty: 66 m³/h at 60 m; catalog maximum reference values reach 130 m³/h and 68 m.
TECHNICAL DATA
Specifications, performance and construction
Confirm the final operating point, materials, motor and connection standard before ordering.
DFSH422 product overview
High-head submersible drainage pump for deep-well pre-dewatering, mine drainage and long-distance construction-water transfer, with dry-type two-pole motor and dual mechanical seals.
This page is matched to the official DFIN DFBZ / DFBD series catalog. The listed duty values identify the exact 100 mm configuration; final selection must be checked against the required system curve, liquid and installation method.
Model-specific technical parameters
| Model | DFSH422 |
|---|---|
| Series | DFSH High-Head Submersible Drainage Pump |
| Discharge outlet | 100 mm |
| Motor power | 22 kW |
| Rated current at 400 V | 41.5 A |
| Rated capacity | 66 m³/h |
| Rated head | 60 m |
| Catalog maximum capacity | 130 m³/h |
| Catalog maximum head | 68 m |
| Impeller passage | 6 mm |
| Standard supply | Three-phase 400 V ±10%, 50 Hz; 380 V ±10%, 60 Hz |
| Insulation | Class F |
| Protection | IP68 |
| Cable | 20 m |
| Temperature | Up to 40°C |
| Depth | Up to 30 m |
Construction and engineering advantages
- Rated heads up to 80 m and catalog maximum head up to 90 m
- Dry-type two-pole submersible induction motor
- Dual mechanical seals for increased submersion depth
- Hermetically sealed motor and top-discharge hydraulic layout
| Motor / pump body | Rigid cast iron |
|---|---|
| Rotor shaft | AISI 420 stainless steel |
| Mechanical seal | SiC-SiC / carbon-SiC configuration according to motor size |
| Bearings | Ball bearings |
| Hydraulic wear components | High-chromium alloy and/or ductile iron according to series |
DFSH construction, dimensions and model table
Open the high-resolution official catalog sheet to check cross-section, materials, installation dimensions, net weight, gross weight and packing size for the complete series.
DFSH performance curves
The catalog includes the applicable 50 Hz and 60 Hz curves. Maximum values are reference limits, not automatically the recommended continuous-duty point.
Download complete DFBZ / DFBD series catalog (PDF) ↓
Typical applications
- Deep-well pre-dewatering
- High-head construction drainage
- Mine, quarry and coal-ore drainage
- Long-distance water transfer
Selection and ordering guide
- Provide the required flow and total dynamic head, including pipe and fitting losses.
- Describe the liquid, solids size, solids concentration, abrasiveness and temperature.
- Confirm sump depth, installation method, discharge connection and required cable length.
- Confirm voltage, frequency, control cabinet, level-control and intelligent-protection requirements.
- For slurry service, provide particle distribution and settling tendency so the agitator and wear materials can be verified.
Installation and service notes
Keep the pump within the minimum operating-water level shown in the catalog, verify rotation before continuous operation, and never lift the pump by its cable. Inspect the strainer, impeller, inlet plate or agitator, mechanical seals and cable entry at planned service intervals. Isolate power and pressure before maintenance.
SELECTION SUPPORT
Application-based pump selection
Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.
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