Deep Well Submersible Pump Stages (Without Motor)
A deep well pump end is the pump section sold without a motor, consisting of impellers, diffusers and jacket, connected to an existing submersible motor.
It is used for renewal and spares in wells where the motor is sound but the pump section is worn. The product range includes stainless and bronze-head models for 4″ wells matching 1–5 HP motors.
Main Applications
- Replacing worn pump sections
- Well pump spare part
- Renewal keeping the motor
- Changing flow or head
- Service and maintenance stocks
Technical Data
| Product type | Deep well pump end without motor |
|---|---|
| Well diameter | 4″ |
| Motor match | 1 – 5 HP (product names) |
| Head | Stainless or bronze (product range) |
| Jacket and shaft | Stainless steel AISI 304 (parent group sheet) |
| Impeller | Technopolymer, floating (parent group sheet) |
| Motor connection | 4″ standard connection (depending on model) |
| Max. sand content | 150 … 200 g/m³ (parent group sheet) |
Material Options
| Part | Stainless head | Bronze head |
|---|---|---|
| Head | Stainless steel | Bronze |
| Jacket | Stainless AISI 304 | Stainless AISI 304 |
| Impeller | Technopolymer | Technopolymer |
| Typical use | General wells | Aggressive water (depending on model) |
Which material? When choosing a pump end, the existing motor power and connection standard must match; a more powerful pump end overloads the motor. Body and sand limit data come from the submersible pump sheet.
Advantages
Economical Renewal
- Motor kept
Fast Service
- Quick installation
Two Head Options
- Stainless and bronze
Wide Power Range
- 1 – 5 HP
Construction and Design Features
- Stainless jacket
- Impeller and diffuser stages
- Discharge head
- Motor coupling
Send the existing motor power, connection, well depth and flow need; we will confirm a suitable pump end.
How to Choose?
- Motor and connectionDetermine existing motor power and connection standard.
- HeadCalculate the head needed.
- Flow and waterState flow and water quality (sand, aggressiveness).
- Head materialChoose a stainless or bronze head.
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Why ORFA?
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Details →Our Deep Well Submersible Pump Stages (Without Motor)
ORFA supplies deep well submersible pump stages (without motor) in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.
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