The pumps 400-BQO represent new development stage of volute pumps of reliable pumps SIGMA. These pumps are used to handle both clean and turbid water without big solids in severe conditions from wells, ponds, lakes, brooks and rivers. Maximum temperature of pumped liquid is up to 60 °C. These pumps are favoured in usage in agriculture and water management because of their high efficiency and top performance.They are mainly used for border irrigation, check-basin irrigation, water pumping off on water construction works, on water reservoirs, pumping off during floods, in various water pumping stations and works, etc. As these pumps are intended for relatively big capacities it is necessary not to exceed NPSH during their operation. An Exceeding of NPSH causes lower capacity of the pump or its break-down because of cavitation effect. We recommend to use vacuum pump driven with electric motor for flooding 400-BQO pump and suction line. The main advantages of the pumps 400-BQO:
- New design and high efficiency
- Easy service, assembly and disassembly
- High duty reliability
- Long life time
- Low weight
- Small installation dimensions