Horizontal Multi-stage Centrifugal Pump D(DF/DY)/DG Series

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This series is a horizontal, single suction and multi-stage centrifugal pump, which adopts the hydraulic model of efficient and energy-saving products recommended by the sate, playing a leading technical role in the industry. It has such advantages as high efficiency, wide performance range, safe and stable operation, low noise, long life and easy installation and maintenance.

  It can be used to transport clear water without solid particles (grinding materials) or suspended substances or other liquids with similar physical and chemical properties as clear water. It can also transport hot water, oil products, corrosive or abrasive media and so on by means of changing the pump’s material (or the material of the pump’s flow-through part) and sealing mode and adding a cooling system.

  Our company has passed the certification of IS9001:2000 International Quality Management System. Our product design, production and service are provided with strict and standard control systems and our product quality is fully guaranteed.

By its application scope, the horizontal multi-stage centrifugal pump includes the following types:   D pump can be used to transport clear water containing no solid particles with a temperature lower than 80℃ or liquids with similar physical and chemical properties as clear water. It’s applicable for water supply and drainage works in mines, plants and cities.

  DF pump can be used to transport corrosive liquids containing no solid particles with a temperature range of -20℃~105℃. The pump’s allowable inlet pressure shall be less than 0.6MPa.
  DY pump can be used to transport oil and petroleum products containing no solid particles with a temperature range of -20℃~105℃ and a viscosity less than 120cP.

  DG horizontal single-suction multi-stage centrifugal pump can be used to transport the clear water or other liquids with similar physical and chemical properties as clear water. It’s applicable for the water supply in low/middle/sub-high pressure boilers as well as for the high-pressure water supply and drainage in plants or cities. The temperature range of transported medium is -20℃~105℃; And the allowable inlet pressure shall be less than 0.6MPa.

  In addition, our company can provide this pump series’ multi-outlet structure and function as required by customers. The user can select the pump’s material, sealing mode, structure, motor capacity and so on in a reasonable way in concentration, specific gravity and working temperature, the pump’s inlet pressure and so forth.

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Q:2 inches of water pump is generally equipped with high-power motors
3KW2 pole asynchronous motor
Q:Pump adapter joint net outside tube, what is the principle?
At once the room after the fire, the internal fire pool once water shortage, the water tank can be within the fire truck hit the water chamber through the pump adapter connected to the fire extinguishing effect.
Q:Why can't sprinkler system and hydrant system share water pump in fire fighting system?
The design code of sprinkler system GB 50084 - 2001 (2005 Edition) stipulates that the sprinkler system shall be provided with an independent water supply pump, that is, the water pump shall not be shared with the hydrant system. The aim is to ensure the reliability of the water supply and prevent interference.See the code for design of automatic sprinkler system, GB 50084 - 2001 (2005 Edition), 10.2.1 and the corresponding provisions of the following interpretation.
Q:Does the lift of pump relate to the water level of import and export?
What's the relationship?! When the inlet level is low, the head is slightly higher than the liquid level!
Q:Why does the pump head decrease when the pump flow rate increases?
When the power increases to a certain extent, can not be increased, so when the flow increases, the head can only be reduced
Q:Water pump motor overload
170A has shown that the motor is overloaded; the head 70M; the displacement of 180 cubic meters; the approximate power is 42Kw (efficiency is higher). At this point, the current of the corresponding motor should be approximately 86A;The power of water pump is related to the quantity of water transported. The water pump is a passive energy conversion device, and it has no regulating ability. It depends entirely on the intersection of its pipeline characteristics and its own characteristics,No, your situation is the pump and pipeline characteristic, the pump head is higher than the resistance of pipeline, so that the water flow movement (increase too large). Pump power becomes largerShut down the water pump, the valve will certainly reduce the amount of water, as for whether to reach 180, you can see the pressure gauge to show the pump lift to determine the pressure of less than 70 meters, the flow of more than 180
Q:How to measure the temperature of pump body?
It's the temperature of the pump motor!In addition to large pumps, water temperature is rarely monitored. Even so, the temperature of the pump body will not be measured.Since the water pump pumping, the leaves, vanes and shells are no temperature rise, the temperature is mainly concentrated in the bearing: small pumps rely on the work medium can play a role in reducing friction heat;Heating large pump mainly in the thrust bearing and guide bearing, if the bearing is lubricated by water cooling water, if there is oil lubricated oil cooling equipment specially, temperature monitoring of bearing large pumps can be installed in the pump thrust bearing temperature sensor to monitor the varnay.
Q:Three phase water pump rated power 4000W, is three-phase working water pump, the voltage is 380V, how to find the three-phase pump current, and calculation of public
Three phase water pump motor rated power 4000W is the output shaft power, divided by the motor efficiency (general 85%) is the input power, which is often mistaken. The electric power is =4000/0.85=4706WRated current = electric power /1.732x, rated voltage x, power factor =4706/1.732x380x0.8=8.94A (assuming power factor 0.8).The above three answers are all wrong.
Q:Pump power ratio design is small, the problem is big?
Lift and flow to meet the requirements of power, in fact little difference, different manufacturers and brands in the same common effect of different power phenomenon, design principle is on the one hand, the hysteresis loss mechanical loss processing technology is one of the reasons of the differences. Power, after all, does not increase, and does not have a major impact on other lines.
Q:What is the relationship between pump power, lift and flow?
When the power is constant, the kinetic energy theorem is known as P=F*V, that is, W=F*S.In the water pump, it is said that the work done by the unit time pump = the gravity of the water flow * the displacement of the waterIt can be seen that:1, the power is certain, the head and the flow is inversely proportional.2, the greater the power, the greater the product of the head and flow.Therefore, when the flow is minimum, the pump head is the maximum; when the head is the minimum, the flow is the maximum.

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