Pumps

Electric pumps for water, oil and industrial media — at Stojan you will find reconditioned and tested as well as new pumps, ready for operation. We ship from our warehouse in Poland; delivery to EU countries is by DPD courier, usually 3–5 business days after dispatch.

Types of electric pumps

Centrifugal pumps

The most popular type — the impeller imparts velocity to the liquid, which is converted into pressure. They perform well at high flow rates and with clean or slightly contaminated media: water, condensate, coolants. Easy to operate and reliable.

Pumps for viscous liquids and oils

Gear and screw pumps deliver high-viscosity media — oils, greases, emulsions. They provide a constant, uniform flow rate independent of pressure, which is why they are used in lubrication systems and hydraulics.

Industrial pumps

For process systems, machine cooling, and water installations in plants and agriculture. Versions in various materials (cast iron, stainless steel) are selected according to how aggressive the medium is.

How to choose a pump

Selection depends on four parameters:

1. Flow rate (m³/h or l/min) — how much liquid the pump has to deliver per unit of time.
2. Head (m H₂O) — the difference in levels plus the resistance of the system.
3. Type of medium — clean water, dirty water, oil, chemicals; this determines the pump material and type.
4. Power supply — 230 V single-phase (smaller domestic pumps) or 400 V three-phase (industry, higher flow rates).

Many pumps are driven by B5 flange-mounted motors — if you need to replace the drive, see our three-phase motors. To control the flow rate, a frequency inverter from our accessories category will come in handy. Have a question about a specific pump? Call +48 500 385 112.