The alternative to classic waste water pumps

In addition to the commonly used submersible pumps in the field of dirt water pumps, we alternatively offer self-priming centrifugal pumps with an open impeller.

The pumps must be primed for the first operation in the application, but is thereafter self-priming in case the pump needs to be stopped for a period of time and then re-started.

SW-Centrifugal Pumps

  • Pump housing and impeller made of gray cast iron
  • Wear plate made of steel AISI 316
  • Stainless steel drive shaft
  • Mechanical seal made of ceramic/graphite.
  • Manometric suction height: 8 metres
  • Protection class IP55
  • Max. media temperature: 80 °C

No connections included in the scope of delivery - but are available as option!


Why use a centrifugal pump instead of a submersible pump for waste water? 

As an example, if the fluid to be pumped is not located deep in a pit, then a surface type centrifugal pump can be used.  With a maximum suction of 8 meters, the open impeller pump can pull wastewater and other fluids with solids from pits, tanks, and other collection points.  When finished, the pump can easily be transported to another location, or put away for storage until the next use.

Drives

The open impeller pumps are available in 230 V and 400 V as standard.  Petrol or diesel engine drives are available upon request.

The electric drives are classified in accordance to protection class IP55 i.e. protected against dust and water projected by a nozzle from any direction.

** The pump is delivered standard without connections, however these are available separately.  Please speak with one of our sales representatives to find the right connections for your application.

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SW 200, 2850 min-1, 230 V Centrifugal Pump with open Impeller

SW 200, 2850 min-1, 230 V
Art. Nr. 1610230
flow rate max. litres 400 l/min flow rate max. m³ 24 m³/h max. pressure 1,6 bar Inlet/outlet 2" ft For dirty water containing solids with max. size 20 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 230 V, Nominal frequency 50 Hz Nominal power 1,5 kW, Rated current (AC) 7,8-4,5 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F With 2 m cable and plug Motor protection (thermal) yes Construction size 420 x 215 x 310 mm weight 28 kg Optional: Delivery will be without hose connections, but can be offered.

SW 200, 2850 min-1, 400 V Centrifugal Pump with open Impeller

SW 200, 2850 min-1, 400 V
Art. Nr. 1610200
flow rate max. litres 400 l/min flow rate max. m³ 24 m³/h max. pressure 1,6 bar Inlet/outlet 2" ft For dirty water containing solids with max. size 20 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 400 V, Nominal frequency 50 Hz Nominal power 1,5 kW, Rated current (AC) 7,8-4,5 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F Without cable and plug Construction size 420 x 215 x 310 mm weight 28 kg Optional: Delivery will be without hose connections, but can be offered

SW 300, 2850 min-1, 230 V Centrifugal Pump with open Impeller

SW 300, 2850 min-1, 230 V
Art. Nr. 1610330
flow rate max. litres 800 l/min flow rate max. m³ 48 m³/h max. pressure 1,6 bar Inlet/outlet 3" ft For dirty water containing solids with max. size 30 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 230 V, Nominal frequency 50 Hz Nominal power 2,2 kW, Rated current (AC) 12 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F With 2 m cable and plug Motor protection (thermal) yes With 2 m cable and plug Construction size 475 x 245 x 315 mm weight 34 kg Optional: Delivery will be without hose connections, but can be offered

SW 300, 2850 min-1, 400 V Centrifugal Pump with open Impeller

Art. Nr. 1610300
flow rate max. litres 800 l/min flow rate max. m³ 48 m³/h max. pressure 1,6 bar Inlet/outlet 3" ft For dirty water containing solids with max. size 30 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 400 V, Nominal frequency 50 Hz Nominal power 2,2 kW, Rated current (AC) 9,9 - 5,7 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F Without cable and plug Construction size 475 x 245 x 315 mm weight 34 kg Optional: Delivery will be without hose connections, but can be offered

SW 550, 2850 min-1, 400 V Centrifugal Pump with open Impeller

Art. Nr. 1610550
flow rate max. litres 1600 l/min flow rate max. m³ 96 m³/h max. pressure 1,7 bar Inlet/outlet 4" ft For dirty water containing solids with max. size 40 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 400 V, Nominal frequency 50 Hz Nominal power 4,0 kW, Rated current (AC) 13,0 - 7,5 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F Without cable and plug Construction size 580 x 370 x 385 mm weight 70 kg Optional: Delivery will be without hose connections, but can be offered

SW 750, 2850 min-1, 400 V Centrifugal Pump with open Impeller

SW 750, 2850 min-1, 400 V
Art. Nr. 1610750
flow rate max. litres 1800 l/min flow rate max. m³ 108 m³/h max. pressure 2,0 bar Inlet/outlet 4" ft For dirty water containing solids with max. size 40 mm Temperature max. 80 °C Material pump housing cast iron Open impeller cast iron Mechanical seal Ceramic/Graphite Electric motor Voltage (AC) 400 V, Nominal frequency 50 Hz Nominal power 5,5 kW, Rated current (AC) 11,0-6,5 A rotation max. 2850 min-1 Material motorshaft stainless steel Protection class IP55 , Insulation class F Without cable and plug Construction size 645 x 370 x 385 mm weight 89 kg Optional: Delivery will be without hose connections, but can be offered