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What is the price difference of the homogeneous competition of multistage centrifugal pumps?

What is the price difference of the homogeneous competition of multistage centrifugal pumps?

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2018-05-16
  • Views:0

(Summary description)There are five differences between the same model multistage centrifugal pump and a multistage pump configured

1. Material of multi-stage centrifugal pump

Material is divided into three aspects:

1. Material: Regular manufacturers will equip parts with corresponding materials in accordance with national and industry standards. For example, in the D-type multi-stage centrifugal pump, according to national standards, some parts of the cast iron pump are made of HT250 cast iron instead of HT200, some parts are made of refrigerated cast iron, and some types of balance discs are made of nodular cast iron. Under some conditions The balance ring should be made of copper, and some types of shaft sleeves should be made of stainless steel. But the actual situation is that many manufacturers have not honestly equipped materials according to national standards. Some manufacturers even use counterfeit materials, which are especially common in the field of stainless steel multistage pumps. If stainless steel materials are compared according to standard grades, some manufacturers may have faked it in the casting process. Reduce the content of some precious and non-prime in order to achieve the purpose of reducing costs.

 



 

2. Casting quality: Many small and medium-sized manufacturers actually do not have quality inspection links. For the cast blanks, they usually check the appearance. The inspections for sand holes, pores, cracks, and impurities are not strictly implemented in the procedures, and the technical means are not strict. lack of. This link is also a cost-increasing link for manufacturers, relying on the integrity mechanism between the multi-stage centrifugal pump manufacturer and the casting manufacturer. This is the function of the market competition mechanism, which can virtually reduce the cost of enterprises. But it does not mean that it is a good thing that the testing procedures of multi-stage centrifugal pump manufacturers are not strict.

3. Aging treatment of multi-stage centrifugal pump castings: After the multi-stage centrifugal pump castings are cast, there are stresses inside the castings. Generally, depending on the material, there will be different lengths of aging treatment time. It is generally placed outdoors in the sun and rain for a long time. The actual situation is that many manufacturers use vibration to deal with stress in order to grab urgent orders. Of course, this method cannot completely deal with the stress, so it also has a certain impact on the stability of the pump quality.

 



 

  

2. The accuracy of multistage centrifugal pumps

The accuracy of multi-stage centrifugal pumps is divided into two aspects: machining accuracy and assembly accuracy. According to national standards, almost every general and mature pump product has national standards, which clearly stipulate that the processing accuracy of each part of the pump should be controlled within a few threads. In fact, many manufacturers do not have a strict quality control system for the control of processing accuracy. There is no corresponding equipment to ensure machining accuracy.

For example: For the same shaft, for flaw detection, quenching and tempering, and beating, the rotor parts on the shaft need to be statically balanced and dynamic balance tested. Each part must be controlled during processing and cannot exceed the allowable range. Because one is short of a few threads, and a few added together, the difference is big. The cooperation between the various components of the multi-stage centrifugal pump depends on the tight assembly. If there is a big gap in work everywhere, it will look like people are old and tend to fall apart.

Third, the appearance quality of the multi-stage centrifugal pump

The appearance quality of a multistage centrifugal pump mainly depends on three aspects:

1. Mold and casting process: The effect of general wooden mold casting is definitely not as good as that of precision casting and lost foam. There are other advanced casting processes. On the one hand, advanced casting processes will increase the cost due to the use of new molds. On the other hand, it has certain advantages due to the reduction of the cost of appearance processing.

2. Appearance treatment: There are many processes, such as polishing, pickling passivation, and electroplating, and the cost is different, and each has its own merits.

3. Paint process: The seemingly simple paint process, in fact, there is a lot to do. If the paint is done well, the appearance of the product can be improved by several grades, and naturally the price can have more room for improvement.

Fourth, product packaging and corporate and brand image building

The same product, the packaging, the manufacturer and the brand are different, and the feeling is very different. To create high-quality product packaging, the image of the manufacturer and the brand tonality means more price space.

 



 

  

5. The service of the enterprise an

What is the price difference of the homogeneous competition of multistage centrifugal pumps?

(Summary description)There are five differences between the same model multistage centrifugal pump and a multistage pump configured

1. Material of multi-stage centrifugal pump

Material is divided into three aspects:

1. Material: Regular manufacturers will equip parts with corresponding materials in accordance with national and industry standards. For example, in the D-type multi-stage centrifugal pump, according to national standards, some parts of the cast iron pump are made of HT250 cast iron instead of HT200, some parts are made of refrigerated cast iron, and some types of balance discs are made of nodular cast iron. Under some conditions The balance ring should be made of copper, and some types of shaft sleeves should be made of stainless steel. But the actual situation is that many manufacturers have not honestly equipped materials according to national standards. Some manufacturers even use counterfeit materials, which are especially common in the field of stainless steel multistage pumps. If stainless steel materials are compared according to standard grades, some manufacturers may have faked it in the casting process. Reduce the content of some precious and non-prime in order to achieve the purpose of reducing costs.

 



 

2. Casting quality: Many small and medium-sized manufacturers actually do not have quality inspection links. For the cast blanks, they usually check the appearance. The inspections for sand holes, pores, cracks, and impurities are not strictly implemented in the procedures, and the technical means are not strict. lack of. This link is also a cost-increasing link for manufacturers, relying on the integrity mechanism between the multi-stage centrifugal pump manufacturer and the casting manufacturer. This is the function of the market competition mechanism, which can virtually reduce the cost of enterprises. But it does not mean that it is a good thing that the testing procedures of multi-stage centrifugal pump manufacturers are not strict.

3. Aging treatment of multi-stage centrifugal pump castings: After the multi-stage centrifugal pump castings are cast, there are stresses inside the castings. Generally, depending on the material, there will be different lengths of aging treatment time. It is generally placed outdoors in the sun and rain for a long time. The actual situation is that many manufacturers use vibration to deal with stress in order to grab urgent orders. Of course, this method cannot completely deal with the stress, so it also has a certain impact on the stability of the pump quality.

 



 

  

2. The accuracy of multistage centrifugal pumps

The accuracy of multi-stage centrifugal pumps is divided into two aspects: machining accuracy and assembly accuracy. According to national standards, almost every general and mature pump product has national standards, which clearly stipulate that the processing accuracy of each part of the pump should be controlled within a few threads. In fact, many manufacturers do not have a strict quality control system for the control of processing accuracy. There is no corresponding equipment to ensure machining accuracy.

For example: For the same shaft, for flaw detection, quenching and tempering, and beating, the rotor parts on the shaft need to be statically balanced and dynamic balance tested. Each part must be controlled during processing and cannot exceed the allowable range. Because one is short of a few threads, and a few added together, the difference is big. The cooperation between the various components of the multi-stage centrifugal pump depends on the tight assembly. If there is a big gap in work everywhere, it will look like people are old and tend to fall apart.

Third, the appearance quality of the multi-stage centrifugal pump

The appearance quality of a multistage centrifugal pump mainly depends on three aspects:

1. Mold and casting process: The effect of general wooden mold casting is definitely not as good as that of precision casting and lost foam. There are other advanced casting processes. On the one hand, advanced casting processes will increase the cost due to the use of new molds. On the other hand, it has certain advantages due to the reduction of the cost of appearance processing.

2. Appearance treatment: There are many processes, such as polishing, pickling passivation, and electroplating, and the cost is different, and each has its own merits.

3. Paint process: The seemingly simple paint process, in fact, there is a lot to do. If the paint is done well, the appearance of the product can be improved by several grades, and naturally the price can have more room for improvement.

Fourth, product packaging and corporate and brand image building

The same product, the packaging, the manufacturer and the brand are different, and the feeling is very different. To create high-quality product packaging, the image of the manufacturer and the brand tonality means more price space.

 



 

  

5. The service of the enterprise an

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2018-05-16
  • Views:0
Information

There are five differences between the same model multistage centrifugal pump and a multistage pump configured

1. Material of multi-stage centrifugal pump

Material is divided into three aspects:

1. Material: Regular manufacturers will equip parts with corresponding materials in accordance with national and industry standards. For example, in the D-type multi-stage centrifugal pump, according to national standards, some parts of the cast iron pump are made of HT250 cast iron instead of HT200, some parts are made of refrigerated cast iron, and some types of balance discs are made of nodular cast iron. Under some conditions The balance ring should be made of copper, and some types of shaft sleeves should be made of stainless steel. But the actual situation is that many manufacturers have not honestly equipped materials according to national standards. Some manufacturers even use counterfeit materials, which are especially common in the field of stainless steel multistage pumps. If stainless steel materials are compared according to standard grades, some manufacturers may have faked it in the casting process. Reduce the content of some precious and non-prime in order to achieve the purpose of reducing costs.

 

1

 

2. Casting quality: Many small and medium-sized manufacturers actually do not have quality inspection links. For the cast blanks, they usually check the appearance. The inspections for sand holes, pores, cracks, and impurities are not strictly implemented in the procedures, and the technical means are not strict. lack of. This link is also a cost-increasing link for manufacturers, relying on the integrity mechanism between the multi-stage centrifugal pump manufacturer and the casting manufacturer. This is the function of the market competition mechanism, which can virtually reduce the cost of enterprises. But it does not mean that it is a good thing that the testing procedures of multi-stage centrifugal pump manufacturers are not strict.

3. Aging treatment of multi-stage centrifugal pump castings: After the multi-stage centrifugal pump castings are cast, there are stresses inside the castings. Generally, depending on the material, there will be different lengths of aging treatment time. It is generally placed outdoors in the sun and rain for a long time. The actual situation is that many manufacturers use vibration to deal with stress in order to grab urgent orders. Of course, this method cannot completely deal with the stress, so it also has a certain impact on the stability of the pump quality.

 

1

 

  

2. The accuracy of multistage centrifugal pumps

The accuracy of multi-stage centrifugal pumps is divided into two aspects: machining accuracy and assembly accuracy. According to national standards, almost every general and mature pump product has national standards, which clearly stipulate that the processing accuracy of each part of the pump should be controlled within a few threads. In fact, many manufacturers do not have a strict quality control system for the control of processing accuracy. There is no corresponding equipment to ensure machining accuracy.

For example: For the same shaft, for flaw detection, quenching and tempering, and beating, the rotor parts on the shaft need to be statically balanced and dynamic balance tested. Each part must be controlled during processing and cannot exceed the allowable range. Because one is short of a few threads, and a few added together, the difference is big. The cooperation between the various components of the multi-stage centrifugal pump depends on the tight assembly. If there is a big gap in work everywhere, it will look like people are old and tend to fall apart.

Third, the appearance quality of the multi-stage centrifugal pump

The appearance quality of a multistage centrifugal pump mainly depends on three aspects:

1. Mold and casting process: The effect of general wooden mold casting is definitely not as good as that of precision casting and lost foam. There are other advanced casting processes. On the one hand, advanced casting processes will increase the cost due to the use of new molds. On the other hand, it has certain advantages due to the reduction of the cost of appearance processing.

2. Appearance treatment: There are many processes, such as polishing, pickling passivation, and electroplating, and the cost is different, and each has its own merits.

3. Paint process: The seemingly simple paint process, in fact, there is a lot to do. If the paint is done well, the appearance of the product can be improved by several grades, and naturally the price can have more room for improvement.

Fourth, product packaging and corporate and brand image building

The same product, the packaging, the manufacturer and the brand are different, and the feeling is very different. To create high-quality product packaging, the image of the manufacturer and the brand tonality means more price space.

 

1

 

  

5. The service of the enterprise and the quality of sales staff

This layer is the part that is most related to the emotions and feelings of customers, and it is also an important part of determining the company's sales performance. Of course, good corporate services and recruitment of excellent sales staff also mean corresponding costs.

Generally speaking, the differences of multi-stage centrifugal pumps include the above five aspects. There are so many factors behind why the same pump has different prices.

A good company is nothing more than a down-to-earth production in accordance with standards, a down-to-earth service to customers, relying on technology, innovation and management to tap profit margins, rather than cutting corners and shoddy manufacturing. Even if they can make money for a while, they will not be able to be in the market. Long-term foothold.

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