Single- or multistage centrifugal pumps BSX, BRY, BRZS, BRE, BSF

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Shanghai
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1 pc
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Product Description:

 

Design
Single- or multistage centrifugal pumps in ring-section design, single                                                       entry; for vertical and, depending on the number of stages, angled and                                                          horizontal installation; mixed flow hydraulic systems available with                                                            reduced impeller diameters; driven by submersible motors. Suction casing                                                        fitted between pump and motor, equipped with strainer to protect the                                                            pump from coarse particles in the fluid. Permissible sand content in the                                                        fluid: 50 g/m³. Pumps with non-return valve or connection branch on option.                                                    
Applications
pumping clean or slightly contaminated water in general water supply,                                                        irrigation and spray irrigation systems, lowering and maintaining ground                                                        water levels, pressure boosting, emergency water supply, as well as mines and fountains etc.


 

Overview of technical data

Discharge casing material (EN standard)                                                                         CC480K; JL 1030                    
Stage casing material (EN standard)                                                                         CC480K; JL1030                    
Maximum drive rating                                                                         1. 000                         kW                    
Diffuser material (EN standard)                                                                         JL 1030; CC480K                    
Impeller material (EN standard)                                                                         CC480K; 1.4408;1.4593                    
Type of bearing                                                                         Plain bearings                    
Drive frequency                                                                         50 Hz / 60 Hz                    
Maximum speed of rotation                                                                         1. 750                         1/min                    
Maximum flow rate                                                                         2. 600                         m³/h                    
Maximum discharge-side pressure                                                                         35                         bar                    
Suitable for drinking water                                                                         Yes                    
Casing material (EN standard)                                                                         CC480K; 1.4408;JL1030;1.4593                    
Suction casing material (EN standard)                                                                         JL1030; CC480K                    
No. of impeller entries                                                                         Single entry                    
Casing material                                                                         Cast iron; Bronze;Stainless steel                    
Minimum flow rate                                                                         200                         m³/h                    
Suction characteristics                                                                         Non- priming                    
Drive voltage                                                                         Low voltage, high voltage                    
eClass assignment                                                                         36410000; 36410106;36410100                    
Other impeller types                                                                         Mixed flow                    
Pump set location                                                                         Wet well                    
Type of suction casing                                                                         Annular casing                    
Max. permissible fluid temperature                                                                         50                         °C                    
Type of first impeller                                                                         Mixed flow                    
Type of installation                                                                         Stationary                    
Type of connection                                                                         Flange                    
Type of lubrication                                                                         Oil / Product lubrication                    
Type of drive                                                                         Electric motor                    
Installation position                                                                         Horizontal or vertical                    
Borehole diameter (inch)                                                                         16; 24;18;26;20                    
Shaft material (EN standard)                                                                         1. 4021;1.4462                    
Type of coupling                                                                         Direct                    
Shaft seal type                                                                         Mechanical seal; Shaft seal ring                    
Drive                                                                         Electric motor                    
Maximum head                                                                         230, 00                         m                    
Maximum rated pressure (discharge)                                                                         PN 40                    
Minimum head                                                                         8, 00                         m                    
Type of stage casing                                                                         Stage casing with diffuser                    
Casing partition                                                                         Radially split                    
Connection to power supply                                                                         < 6,6 kV, 3~

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Q:How many square cables does the submersible pump for 7.5KW need?
I=P/ (1.732Ucos phi) =7.5/ (1.732X0.38X0.85) =13A (calculated according to three-phase city power, power factor 0.85).
Q:What is the "variable" of a variable pump?
Variable pump variable refers to the flow can be changed to distinguish from the constant flow of quantitative pumps.
Q:What's the meaning of the pump head in the water pump, please advise, thank you
In general, the pump removes the motor, and all the fittings are part of the pump head.A pump is a machine that transports liquids or pumps liquids.
Q:Why does the centrifugal pump start with a closed valve and the axial pump starts with an opening valve?
The power of axial flow pump decreases with the increase of flow rate, and it is a steep curve, so the centrifugal pump starts with an open valve.
Q:What are the general water pump failure, how to repair?
Two, pump speed is low(1) human factors. Some users because of original motor damage, may be accompanied by another motor, resulting in a flow of small, low head or even the consequences of Sheung shui.(2) the mechanical failure of the pump itself. Impeller and pump shaft fastening nut loose or deformation of the pump shaft bending, resulting in multi impeller, directly with the pump body friction, or bearing damage, are likely to reduce the pump speed.(3) the maintenance of the power machine is not working. The motor is lost because of winding burn, the change of winding number, wire diameter, wiring method, or failure in maintenance can not change the pump speed.
Q:Is the vacuum pump air compressor?
No, both work in the opposite way. Air compressor, referred to as an air compressor, is a machine that produces compressed air (positive pressure). The vacuum pump is just the opposite.
Q:Advantages and disadvantages of centrifugal pumps?
The centrifugal pump has no valve, so it is suitable for conveying suspended liquid, and the special design can also transport large solid suspensionThe pump can be made of chemical resistant material, which is suitable for conveying corrosive solution.The utility model has the advantages of simple structure, few parts, little failures, durability, low maintenance cost, convenient management and reliable work.The output can be adjusted even by the discharge valve fully closed, there is no danger of infinite rising pressure head.The liquid is transferred to a large quantity. And the pressure head does not require large, most suitable for centrifugal pump.
Q:What is the Rhodes pump?
Best answerRoots vacuum pump (referred to as: Roots pump) refers to the pump is equipped with two opposite direction of synchronous rotation of the leaf rotor, rotor, rotor and pump housing between the walls of a small gap and no contact with a variable capacity vacuum pump.Roots vacuum pumps have been tested for long time in the fields of petroleum, chemical, plastic, pesticide, steam turbine rotor dynamic balance and aerospace simulation, so it should be popularized and applied in china. It is also widely used in petroleum, chemical, metallurgical, textile and other industries. Vacuum pump fittings are used for noise control of vacuum pumps, vacuum pump silencers.
Q:What does the impeller on the centrifugal pump mean by the first cutting?
There are 2 situations, first, for example, a XXXX-160 type pump head 32, flow 100, motor 15kW, according to the model we need to cut a become head 28, flow rate of 88, this time, in addition to cutting the impeller, the pump or the original pump motor, became 11kW this is, re designed a new model, namely XXXX-160A, but most structural components did not change. In the same way, we want to design a XXXX-160B that makes the head 24 and the flow rate 80, then we just need to cut the impeller again and match the smaller (7.5kW) motor (the motor bracket needs to be redesigned). In general, multiple cutting impellers are designed to expand and enrich the model. Second, the actual use, if you think the flow head is too large, but also can be cut to make it smaller to adapt to practical applications. But the 2 and 3 cuts you ask are the first.
Q:What is the difference between the ground pump and the pump in the commercial concrete?
Day pump: the pump and pipe will be placed in a position on the site, the pipe in the air like the crane arm

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