1, pump body, impeller: the actual test, based on the careful selection and matching pump impeller, so that no plug is good, strong flow capacity high efficiency, power curve flat, no overload. Smooth impeller precise, small vibration, smooth operation. 2, motor: submersible motors specially designed, IPx8 protection, F class insulation allowed temperature rise under normal temperature conditions, the motor insulation life expectancy, while diving cooling effect, the actual temperature is low, the motor insulation and longer life. 3, the motor cooling: externally mounted pump: heating of the motor through the case of fever, medium long half submerged motor stator casing, reliable and safe operation of the pump can be submerged, the more favorable motor cooling. Built-in pump: pump uses strong cold sandwich structure, even if the motor idling, the motor temperature can also be controlled at 40 degrees Celsius, greatly improving the life of the machine is suitable for shallow water sites, the product under anhydrous conditions long-term air operation, can be used in unattended environments, reducing manpower costs. 4, the shaft seal: mechanical seal motor seal with two separate series, forming a reliable seal Erdao defense. The first medium in the pump, the sealing surface presses tightly with increasing pressure medium, effectively prevent water from entering the oil chamber, the second oil chamber to prevent oil from entering the motor, when the first failure (it works Road conditions more than the second), the second can still prevent water from entering the motor. Bellows-type mechanical seal chamber with an innovative structure that greatly improve seal reliability further, under normal use, trouble-free operation for more than 2000h 5, the oil chamber: oil chamber to prevent the media from entering the motor shaft together barriers to prevent the media from entering the motor, if the first mechanical seal leakage from the oil chamber buffer medium not directly into the motor, while the two independent mechanical seal friction surface lubrication cooling, mechanical seal reliable, except that it can still heating the bearing away some of the heat and the motor. 6, the bearing: a lower double-row angular contact bearing load capacity strength, and the upper groove of the bearing component and reliable motor pump shaft supported on the radial and axial forces and other forces generated during operation of the pump bearing a larger margin degrees, to ensure smooth operation and long machine life. 7, cables and cable glands for use in mines using MT818.5-1999 flame retardant cable, the cable core cross section according to the ambient temperature of 40 degrees Celsius and a long-term reliable operation of the motor full load power design, if the work in the non-motor full load power or 40 degrees Celsius below ambient operation, longer life. Between the cable gland seal pouches and motor pressed into the motor cavity to prevent the media from the interface between the cable and the motor cover. 8, the motor housing: chassis, the end caps, end caps and other components under the motor housing, each part is connected with the Department reliable static sealing, each hydrostatic test are rigorous checks to ensure that no leakage foolproof. 9, special handle: with a special handle for carrying, hurried in the cable as a handle when transporting use. ★ pump main parts: Parts pump impeller pump cover motor shaft mechanical seal friction material shell side of the pump motor side material QT600-3 seamless steel ring 45 or 2Cr13 graphite iron graphite / ceramic carbide / carbide ★ Line Cable Description: Light Blue (U), red (V), white (W) for the three-phase power line ground wire: Black ★:. BQS (W) Series - externally mounted externally mounted pump pump pump structure designed to , located in the lower part of the machine's outlet, the outlet water from the pump discharge directly through the pump-motor power 22KW generally less compact single-stage single-suction pump, its distinguishing feature is a simple structure, lightweight and practical, too sewage capacity, suitable for water containing medium, slime, gravel more use of premises. BQS (W) Series - Built-in Built-in pump pumps the overall structural design for the vertical, the next pump, using the built-in motor structures. There mezzanine motor housing, the normal drainage, water pumped from the mezzanine flowing, flowing from the top to achieve the motor cooling water; Even without water, there are water-cooled motor outside the mezzanine motor, ensure the motor does not overheat and burn. No special care and greatly reduce the labor costs, the company most single-stage, multi-stage pump with a built-in structure. BQS (W) Series - Semi built-in pump into account the advantages of semi-built-in pump and a built-in pump externally mounted pumps, relatively lightweight, but also to ensure that the motor after the motor without water cooling no problem. Mine pump sewage sediment: 2.2kw, 3kw, 4kw, 5.5kw, 7.5kw, 11kw, 15kw, 18.5kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 220kw / 250kw, 280kw, 315kw