Bare Shaft DIN Standard End Suction Centrifugal Water Pump

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1 set
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10000 set/month

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               Bare Shaft DIN Standard End Suction Centrifugal Water Pump

1.Bare Shaft DIN Standard End Suction Centrifugal Water Pump

End Suction Centrifugal Pump complies fully to the European Standard BS EN733 / DIN24255 of performance and dimensions. They are used for pumping clean water or liquids similar to water, achieving wide application on plants, mines, city water supplies, air-conditioning coolers, firefighting system and irrigation. Pumps of the same model have different performance levels basing on different diameter after impeller trimming. Overall the whole series, there are only four sizes of shaft and five of bearing housing. As long as their bearing housings are of the same size, different pumps can interchange chief parts such as shaft, shaft sleeve, shaft seal, impeller nut, etc.

End Suction Centrifugal Pump is also very easy to be installed and maintained. Back pull-out design, driven through flexible coupling, so that pump casing and motor can remain in position while other spare parts are removed.

2.Main Features of Bare Shaft DIN Standard End Suction Centrifugal Water Pump

very easy to be installed and maintained

Back pull-out design

•Driven through flexible coupling

•Customized design is available, OEM and ODM are welcomed.

•Horizontally and vertically installation as different pipeline system

3.Bare Shaft DIN Standard End Suction Centrifugal Water PumpSpecification

 

Material

Cast iron

Pump diameter

350-1600mm

Flow range

1~200L/s

Pressure range

0.2~2.25MPa

Motor power range

1.5~200kW

Inlet/outlet Diameter

DN50~DN200mm

 

Casing

Cast Iron Standard, Ductile Iron, Stainless Steel Optional

Impeller

Bronze Standard ,Cast Iron, Stainless Steel Optional

Shaft

ASTM420Standard,ASTM304,ASTM316,ASTM1045 Optional

Shaft Seal

Mechnical Seal, Gland Pakcing Optional

 

Flow rate

2-1100m3/h

Head

2-152m

Speed

1450 or 2900(50hz),1750 or 3500(60hz)

Working Pressure

1.6PMa or 2.0PMa

 

4.Picture of Bare Shaft DIN Standard End Suction Centrifugal Water Pump

Bare Shaft DIN Standard End Suction Centrifugal Water Pump

 

5.FAQ

What is your product range?

Centrifugal pump, slurry pump, gravel pump, clean water pump, sewage pump, chemical pump, single stage

pump, double suction pump, industry pump, oil pump, paper pulp pump, mud pump, self-priming pump, pipe

water pump, boiler water pump, etc.

Are you a manufacturer?

Yes, we have been in manufacturing and marketing industry centrifugal pump over 20 years.

What information should I let you know if I want to get a quotation?

Pump capacity, pump head, medium, medium temperature, pump material, quantity, if possible, please also provide the pump model you are using now, price will be calculated as per the pump model, if not, we will recommend relevant product for reference.

 

 

 

 

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Q:What is a positive displacement pump? He Weizheng displacement?
The principle and structure of positive displacement pumps are similar to those of hydraulic motors. Positive displacement is the pump outward to provide flow and pressure, that is, conventional pumps. A negative displacement pump is a hydraulic motor that rotates by external pressure and flow.
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:Attention should be paid to the use of pumps?
To carefully check whether there is a crack impeller, impeller fixed in the bearings are loose, if there are cracks and loose, hungry phenomenon should be promptly repaired, if the pump impeller above the soil should also be cleaned
Q:What's the difference between non negative pressure and variable frequency water pump?
Re pressure to a given pressure pressure zone water supply, than frequency conversion water pump energy savingFrom a health perspective, a water tank variable frequency water pump, water tank and the atmosphere, easy occurrence of water pollution two, no negative pressure equipment without negative pressure tank and pump and valve fittings etc., no water tank, the whole process of water supply of water is completed in a closed system, with air contact to avoid two pollution problems water supply.From the management point of view, no negative pressure is fully automatic intelligent operation, reduce management costs, no water tank, reducing the trouble of tank cleaning. No negative pressure is the upgrading of variable frequency water pump products
Q:Common failure treatment of piston pump
Table 15 common troubles and treatment of hydraulic pumpsFault phenomenon, x09 cause analysis, x09 elimination method(1) the pump does not carry oil; the x091. pump does not turn x09 (1); the motor shaft does not rotate1) missed connection power supply2) electrical wiring and component failure, x09 check electrical and troubleshootx09x09 (2) motor heating trip
Q:Know flow and lift how to calculate the pump power?
N=Q.H.g. P / nN - motor power, kWH - pump head, MQ - pump flow, m^3/sG - gravity acceleration g=9.81
Q:What is the cause of the damage of pump bearings?
First of all, know your pump model, and what is the bad bearing, in order to accurately judge for you. Because in addition to some common reasons, the structure of different pumps, bearing damage caused by the reasons are different. Otherwise it is fraught with itching shoes.
Q:Pump unloading in hydraulic transmission,
Can be used for short-term shutdown, pump non-stopNo unloading, usually through the overflow valve back to the tank, high pressure, power, at this time insurable pressure, and so on
Q:What is cavitation, centrifugal pump cavitation phenomenon how to solve?
The pump is in operation, if the over-current part of the local area (usually the impeller blade inlet somewhere later) for some reason, the absolute pressure of pumping the liquid was reduced to liquid vapor pressure temperature, liquid vaporization began in the area, produce a lot of steam, forming bubbles, when the liquid contains a lot of bubbles forward by high pressure impeller zone, high pressure liquid around the bubbles in the bubble decreases drastically and rupture. Condensation in the bubble burst at the same time, the liquid particle filled hole at a high speed, this moment has a very strong effect of water hammer, and with a high impact frequency against the metal surface, the impact stress of hundreds to thousands of atmospheric pressure, impact frequency can be up to tens of thousands of times per second, serious breakdown when the wall thickness will be.The process of cavitation in a pump is caused by the bursting of bubbles and bubbles in the water pump and the destruction of the over-current components. Water pump cavitation, in addition to the over-current components will have a destructive effect, but also noise and vibration, and lead to the performance of the pump down, seriously when the pump will be interrupted liquid, can not work properly.
Q:Because the water pressure of the booster pump is not enough, it can not work automatically. It can only be operated by hand. It is inconvenient to use.
One possibility is the automatic type household booster pump used for a period of time, automatic failure phenomenon, it is mainly stainless steel and other metal products in pipes, long-term precipitation to shut off the power supply after unloading, unscrew the top screw, remove the plastic sheet to be cleaned, and then, according to the original reset, the normal debugging. Can be re used. But that's not why if your booster pump isn't working properly all the time.

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