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                Products
                55kWFlame-proof Sewage & Desilting Submersible Electric Pump for Mine

                Product introduction

                BQS flame-proof sewage & desilting submersible electric pump for mine is jointly developed by our company and Jiangsu University. There are complete product specifications with power ranging from 2.2kW to 315kW, flow ranging from 10m³/h to 2500m³/h and head varying from 7m to 700m, and all products are non-overload. Our company insists on continuous technological innovation to solve kinds of key technical problems of sewage & desilting submersible electric pump such as product structure, parameter optimization, manufacturing process, operating efficiency, sealing, material application, etc.. Our company has over twenty patented techniques, applies several latest research achievements, and forms the mature motor and electric pump manufacturing process. Compared with domestic similar products, this pump has the benefit of safety, reliability, lightweight, utility, good sewage & desilting capacity, long service life, reasonable spectrum, convenient model selection, etc.

                Significant features
                 Model selection: performance optimization, double flow passage impeller, stable operation, no plugging, good transport capacity, and non-overload characteristic, i.e. the input power is less than the matched motor power at any operating point.
                 Mechanical seal improvement: independent tandem mechanical seal and double-end face mechanical seal.
                 Structure optimization: the structural design is in favor of the tightness of mechanical seal, stable operation, and higher reliability; with optimization design, the pump becomes more lightweight and practical
                 IP×8 motor protection grade, good cooling effect of submersible motor, lower temperature rise than ordinary motor, further increased durability, longer service life of motor brought by Class F insulation.

                Main application:
                 The product is appropriate in coal mines for workplace containing methane(commonly known as mashgas) and coal dust with the risk of explosion, and is used to deliver mixed sewage containing sediment, coal gangue, coal cinder, fibers, etc.. Wastewater, rainwater and sewage containing solid particles and continuous fibers from various occasions such as petrochemical industry, buildings, hospitals, residence communities, municipal engineering, road transportation as well as their construction, factory sewerage, small-scale effluent treatment project, etc. are also suitable to be discharged by this product.

                Work condition:
                 1. Voltage; 380V, 660V or 1140V, 3-phase, 50HZ
                 2. Media temperature below 40℃, PH 5-9, media absolute density ≤11kN/m³
                 3. Diameter of the solids in the media up to the provision of MT/T671-2005, special requirements stated with order please

                Components of model and corresponding meaning:

                 Parameters:

                Model
                Flow
                (m3/h)
                Lift
                (m)
                Matching power
                (kW)
                Current
                (V)
                Efficiency
                (A)
                Synchronous Speed
                (r/min)
                Electric pump efficiency
                (%)
                Through the particle diameter
                (mm)
                BQS(BQW)50-170/3-55/N
                50
                170
                55
                380 or 660 or 1140
                107.3 or 61.95 or 35.77
                3000
                40.5
                10
                BQS(BQW)70-130/2-55/N
                70
                130
                42.6
                BQS(BQW)85-100-55/N
                85
                100
                43.8
                BQS(BQW)120-80-55/N
                120
                80
                46.7
                BQS(BQW)150-70-55/N
                150
                70
                50.4
                BQS(BQW)200-60-55/N
                200
                60
                53.8
                BQS(BQW)240-30-55/N
                240
                30
                53.6
                BQS(BQW)400-20-55/N
                400
                25
                57.5

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