Semisubmersible screw pump with flexible shaft 25m 91m 0.75kVt Hmax Qmax 30l / min LEO (772 602) is used to pump fluid from the vertical, directional, marginal wells with complicated characteristics, diameter of 50 mm, for potable water, auxiliary equipment, irrigation systems gardens and vegetable gardens, greenhouses and greenhouses. Due to its construction this pump is provided with a series of anti-frost function - when the pump is not running, in the absence of the check valve of the water pipe drains back into the well, thus avoiding the formation of ice plugs when water freezes. Possible to use this type of pump in the cold season, such as winter operation with a condition of absence of the check valve in the discharge line. The pump is located on the surface, so that during operation eliminates the possibility of water penetration into the motor windings. The main advantage of this class of pumps is Raspaud
