A pump with a flexible shaft (semi-submersible pump) it is used for pumping liquid from vertical, obliquely directed, marginal wells with complicated characteristics, with a diameter of 50 mm, for domestic water supply, auxiliary equipment, irrigation systems of gardens and vegetable gardens, greenhouses and greenhouses. Due to its design, the pump of this series is equipped with an anti-freeze function - when the pump is not working, in the absence of a check valve, water from the pipeline flows back into the well, therefore, the formation of ice plugs when water freezes is excluded. It is allowed to use this type of pump during cold seasons, for example, during winter operation with the condition that there is no check valve in the discharge pipeline. The pump motor is located on the surface, so that during operation, the possibility of water penetration into the stator of the electric motor is excluded.
