ZX Self-priming Pump, Self-priming Sewage Pumps

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Shanghai
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TT OR LC
Min Order Qty:
1 unit
Supply Capability:
400 unit/month

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Product Description:

development of pump energy saving products.Self-priming centrifugal pump, the pump and other pump does not have the self-priming capacity, etc.Such as corrosion resistant mechanical seals and stainless steel material can call some of the chemical, pharmaceutical acid and alkali medium. 
Second, the product features
 
1, the pump with self-priming function, do not need to install the bottom valve in pipeline, only to ensure storage in pump body before work are quantitative liquid can have "a drainage, life-long self-priming" function.So both simplifies the pipeline system, and improved the working conditions.
2, has a compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life. 
Three, use the product
 
1) suitable for urban environmental protection, construction, fire control, chemical, pharmaceutical, dyes, and dyeing, brewing, electric power, electroplating, papermaking, oil, mining, equipment cooling, tanker unloading, etc. 
(2) apply Yu Qingshui, sea water, chemical liquid medium with acid, alkalinity and with general mushy slurry (medium viscosity 100 mile, or less under the solid content of 30%). 
(3) mount a rocker arm sprayer, the water can go into the air, a small drips to spray, is a good tool for farm, nursery, garden, tea garden. 
And (4) can be matched with pressure filter of any model and specifications, sending size belt filter to filter the most ideal auxiliary pump.  
Fourth, working conditions
 
Traffic: 3 ~ 500 m3 / h
Head: 10 ~ 80 m
Ambient temperature 50 ℃ or less
Medium temperature is 100 ℃ or less
Medium density of 1.24 or less by 103 kg/m3

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Q:Rotary vacuum pump does not meet the requirements of vacuum, what are the reasons?
1) oil rotary vane vacuum pump is too low, no effect on the oil seal exhaust valve, rotary plug to refuel after large exhaust sound, and oil mist, that the level is too low, the gas can be eliminated.(2) the vacuum caused by the condensable steam pollution of oil should be changed, and new vacuum pump oil should be replaced.
Q:Suction stroke and lift of water pump
For example: there is a kind of water pump, the model is called "BSP" series, the volume is not large, but the nominal suction process can be 4 meters, it can not add water to 4 meters, it is considered to be relatively high in the micro pumpIn micro pumps, not all pumps have self-priming capacity ("suction stroke")Some centrifugal pumps there is no self-priming ability to use must first do add water. Although some micro pump with self absorption capacity, but "suction" are often the subject of "and the water inlet pipe in all air, can smoke the vertical height of water gap, even only half not so. The pump selection, the absorption process is a relatively important parameter.
Q:Why is the flow of the pump too small will occur cavitation phenomenon?
Why is it easy to produce cavitation when the inlet flow of pump is lowered?This is because the main performance parameters such as the head, power and efficiency of the centrifugal pump are not fixed, but vary with the flow rate. The curve drawn on a coordinate paper is called the performance curve or characteristic curve of the centrifugal pump. What happens when the flow rate decreases? The disadvantage of throttling adjustment is that the pump flow is small, and the impeller is easy to cause cavitation
Q:What is the "variable" of a variable pump?
There are many ways to change the variable pump flow: by changing the eccentricity to change the piston stroke length (radial piston pump, the frequency change principle) motor speed to adjust the flow (such as gear pump flow control principle).
Q:What are the parts of a pump? How do you classify it?I just want to know
Before opening the pump suction pipes and pumps must be filled with water. Open the pump, the impeller rotating speed, which leaves the liquid together with the rotation under the action of centrifugal force, the left outside impeller injection, injection of the liquid in the pump shell gradually slow the spread of indoor speed, the pressure gradually increased, and then from the pump outlet. The outflow discharge tube. At this time, in the leaves at the center of the vacuum area of low pressure liquid was thrown to the surrounding formation there is no air and no liquid, liquid pool at the surface of the liquid under the action of atmospheric pressure, through the suction pipe into the pump, the liquid is continuously pumped up from the liquid pool is also continuous outflow from the discharge pipe.Mainly by the impeller, pump shell, pump shaft, bearings and packing sealing devices and other components
Q:Concrete pump 125 pipe wall thickness
Currently mainly divided into gate valve, concrete pump and S valve concrete pump. Another is a pump consisting of a pump body mounted on an automobile chassis and fitted with retractable or bent cloth poles
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:Fire control center manual start fire pump directly, multi line control
The vertical line NHKVV-7*1.5 is the remote starting line of fire controller to fire pump room.
Q:What is the difference between centrifugal pump and rotary vane pump?
Directly said vane pump on the line, generally do not say rotary vane pump.The centrifugal pump is divided according to the direction of the liquid flow in the impeller
Q:Why can't the centrifugal pump pump the vacuum?
Characteristic equation of centrifugal pumpStudy the effect of fluid on centrifugal pump to obtain energy.The experimental condition of u is that the ideal fluid of unit weight bends the flow between blades at infinity.U investigated the mechanical energy balance of the fluid between the adjacent two inlet and outlet sections, that is, the relationship between theoretical pressure head and theoretical flow.

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