Vertical, single-stage submersible motor pump Amarex N

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Design
Vertical, single-stage submersible motor pump, for wet installation,                                                         stationary and transportable design. Amarex N pumps are floodable,                                                             single-stage, single-entry close-coupled pump sets which are not self-priming. Explosion-proof design available (ATEX, FM, CSA).


Applications
Handling of all types of waste water, especially untreated sewage                                                            containing long fibres and solid substances, fluids containing gas/air,                                                         as well as raw, activated and digested sludge; Removing waste water from flooded rooms or surfaces.                           
Overview of technical data

Type of installation                                                                         Close- coupled                    
Maximum drive rating                                                                         4, 20                         kW                    
Type of bearing                                                                         Rolling element bearings                    
Drive frequency                                                                         50 Hz / 60 Hz                    
Maximum flow rate                                                                         190                         m³/h                    
Casing material (EN standard)                                                                         JL 1040                    
Casing material                                                                         Cast iron                    
Drive voltage                                                                         High voltage                    
Pump set location                                                                         Wet well                    
Explosion protection                                                                         EX- SCHUTZ EEX D IIB;ATEX 100A                    
Free passage                                                                         100                         mm                    
Main applications                                                                         Waste water / sewage;Industry and process engineering;Building services                    
Type of installation                                                                         Stationary; Transportable                    
Type of lubrication                                                                         Grease lubrication                    
Type of drive                                                                         Electric motor                    
Installation position                                                                         Vertical                    
Shaft material (EN standard)                                                                         1. 4021                    
Type of coupling                                                                         None                    
Shaft seal type                                                                         Mechanical seal                    
Drive                                                                         Electric motor                    
Maximum head                                                                         49, 00                         m                    
Connection to power supply                                                                         400 V, 3~

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Q:What should I pay attention to when buying a pump?
Two, the first choice of large and medium-sized professional manufacturers, and through the quality identification of relevant departments, the market credibility of the better models, but also to the professional quality inspection institutions consultation.Three, check the motor grounding device for electric pump, water pump and motor axis, the motor should be in a proper position is provided with a grounding screw, and the grounding screw are arranged near the ground; grounding device of small submersible pump should be reliable and grounding wire, grounding wire cables should have the obvious grounding mark the flag should be in use; the motor is not easy to be worn during the period. This is one of the important safety indexes of electric pumps.
Q:Which nuclear submarines use the shaftless pump technology?
At present, the submarine has been used in the pump jet technology, the most representative is the United States Virginia class submarine and the Russian North Sea God class submarines.. And shaftless pump is a derivative application of superconducting technology, which is more advanced than pump jet technology..If you want to learn more about shaftless pump technology, you can find relevant papers online.
Q:How many pumps does the 80cm tank use?
Filter pump to select the water per hour can be filtered more than 3 times, I personally feel that this is almost enough. Of course, the more times the better, but also consider that if the pump is too large, the water inside the tank will be too large.128X3=384LThat is, the flow must be more than 384L/H of the water pump.You can buy a bigger pump, because the pump for a long time there will be some attenuation and domestic things in general to sign data, so it should be based on your actual situation to buy. Taobao on this category is about 20~40 yuan.
Q:What is the pump lift voltage? And how to suppress the pumping voltage rise?
The reverse voltage and torque electric torque instead, and the motor has strong braking torque, forcing the rotor quickly stopped, but usually AC-DC-AC converter is the main power AC/DC rectifier circuit is irreversible, and therefore can not return to the power grid, resulting in the main circuit of the capacitor voltage increases two that is called the pump voltage.
Q:How to distinguish the flow and displacement in the hydraulic pump? What's the difference between the two?
The unit of displacement is the milliliter. How many milliliters does the pump rotate per circle? The displacement is the pump, the individual,The unit of flow is generally a liter, a figure added to the displacement of the pump over a period of time,
Q:Water pump outlet valve sequence
Design specifications detailed manual instructions, divided into two cases:1, pump water first check valve, suitable for small caliber pipeline, gate valve to protect the non-return valve, not damage function;2, pump water out of the first gate valve, check valve for large diameter pipe, at this point valve easy to open and close;The setting of the check valve is mainly to avoid the high reverse speed of the pump and the condition of the submerged pump house. Set in the suction port of the pump, then stop the pump water flow will still affect the pump. In addition, the pump suction should try to avoid installing too many pipe fittings, so that the pump can maintain sufficient cavitation margin.
Q:What is the "variable" of a variable pump?
These two don't mean the same thing? That is, the pump outlet can be changed
Q:What are the main performance parameters of hydraulic pumps?
Displacement and flowDisplacement refers to the pump (or motor) every turn a week, by the size of the sealing chamber geometry variable discharge (or enter) the volume of liquid, commonly used unit is ml/r (ml / rev). Displacement can be changed as a variable pump (or variable motor), and the displacement can not be changed into a quantitative pump (or a quantitative motor).Actual flow is the amount of flow at the outlet (or inlet) when the pump (or motor) is operating. As the pump itself leaks, the actual flow is less than the theoretical flow. As the motor itself has an internal leakage, to achieve the specified speed, in order to compensate the leakage, the actual flow of input must be greater than the theoretical flow.
Q:What is the nominal pressure of the hydraulic pump and hydraulic motor?
Related concepts of hydraulic motorsFlow theoretical volume refers to the volume of oil inhaled in unit time without leakage.
Q:The main factors affecting the performance of centrifugal pumps
The low specific speed pump, on the other hand, is suitable for smaller flow and higher lift. When the pump outlet pipe diameter at the same time, if the two pumps flow similar, smaller than the speed of small head, shaft power consumption is also large. Generally speaking, the centrifugal pump with smaller revolutions than the impeller has a narrow outlet width and a large outer diameter, and the channel formed by the blade is narrow and long. If the ratio of revolutions is large, the impeller outlet is wide and the outer diameter is small, then the flow passage is short and wide.I hope my answer will be helpful to you. I hope to adopt it!

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