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Schematic diagram of installation height of self-balancing multistage centrifugal pump

When the self-balancing multi-stage centrifugal pump is actually working, the outlet pressure indicated by the pressure gauge is the sum of the vertical height from the axis line of the self-balancing multi-stage pump to the drainage surface and all the head loss on the drainage pipeline, and the vacuum degree indicated by the vacuum gauge. It refers to the sum of the vertical height from the axis line to the suction surface and all losses on the suction pipeline. During use, the sum of the vert...

The role of the main parts of the D-type multistage pump

Before replacing parts or repairing the D-type multi-stage pump, it is necessary to understand which parts the D-type multi-stage pump is composed of in order to facilitate the maintenance and replacement of related parts. The D-type multi-stage pump parts mainly consist of centrifugal pump casing, impeller, sealing ring, impeller nut, pump cover, mechanical seal part, matching motor and other parts.   The role of the main components of the D-type multistage pump: 1. The role of the D-...

Method of adjusting the flow rate of DG type horizontal multistage high pressure centrifugal pump

Through the characteristic curve diagram of the centrifugal pump and piping system, we can analyze several main methods of flow adjustment of the DG type horizontal multi-stage high-pressure centrifugal pump: outlet valve adjustment, pump variable speed adjustment and pump series and parallel adjustment. The characteristic curve diagram is used to analyze the energy consumption loss of the outlet valve adjustment and the pump variable speed adjustment, and the comparison is made. It is pointed o...

Technical requirements for rotor parts of self-balancing wear-resistant multistage centrifugal pumps

The entire rotor of the self-balancing wear-resistant multistage centrifugal pump is supported by the cylindrical roller bearing "GB/T283-94" at the driving end and the angular contact ball bearing "GB/T292-94" at the end. The bearing uses CD30 or CD40 mechanical oil added to the bearing Lubricate the body to the center of the oil lens. Because the bearing adopts "GB/T292-94" angular contact ball bearing, the assembled pump rotor has no axial movement.   Assembled and matched rotor part...

Analysis of Causes of Overcurrent or Excessive Current in D Pump of Horizontal Multistage Pump

According to the user’s reaction to the imagination that the horizontal multistage pump D pump will have an overcurrent when it is running, what is the reason for this phenomenon? When the D type horizontal multistage pump has an overcurrent phenomenon, it should be immediately Shut down to check the pump set and solve it in time, so as to ensure that the pump set will not malfunction and can operate effectively. The following editor will tell you the reasons for the excessive current of t...

Dynamic illustration of the working principle of D-type horizontal multistage centrifugal pump

The D-type horizontal multistage centrifugal pump has high efficiency and can meet the needs of high-lift and high-flow working conditions. It has been widely used in petrochemical, chemical, electric power, construction, fire protection and other industries. Before making the selection, we must understand the working principle of the D-type horizontal multi-stage pump.   The working principle of the D-type horizontal multistage pump is the same as that of the ground centrifugal pump. I...

Structure composition and working principle of horizontal multistage centrifugal booster pump

The structure of the horizontal multistage centrifugal booster pump: Horizontal multi-stage centrifugal booster pumps are divided into two types, double-shell type and segmented type. Currently, segmented multi-stage centrifugal pumps are mostly used. The segmented horizontal multi-stage centrifugal booster pump is a vertically split multi-stage pump. It consists of a front section, a tail section and several middle sections, which are connected as a whole by four long rod bolts. The number of ...

Detailed parameters and performance curves of MD85-80X9 mining multistage pump

MD85-80X9 mining multi-stage pump 　　Model: MD85-80X9 　　Rated flow (m3/h): 85 　　Rated head (m): 720 　　Rated efficiency (%): 65 　　Shaft power (kw): 256.57 　　Cavitation (m): 4.4 　　The maximum outer diameter of the impeller: 252 (mm) 　　Speed (rpm): 2950 　　Impeller series: 9 　　Impeller material: ZG230-450, QT500-7 　　Pump body material: ZG230-450, QT500-7 　　Guide vane material: QT500-7 　　Passing particles: <0.5mm 　　Medium temperature: ≤80℃ 　　Motor power (kw): 315 　　Motor model:...

D46-50×9 horizontal multistage centrifugal pump performance parameters and graphs

D46-50&times;9 horizontal multistage centrifugal pump performance parameters 　　Rated flow (m³/h): 46 　　Rated head (m): 450 　　Rated efficiency (%): 63 　　Shaft power (kW): 89.54 　　Cavitation (m): 2.8 　　Outer diameter of impeller (mm): 210 　　Speed (rpm): 2950 　　Impeller series: 9 　　Medium temperature: ≤80℃ 　　Motor power (ky): 110 　　Motor model: Y3155-2 　　Structure type: Public base 2 　　Impeller steering: clockwise 　　Import and export caliber size type: DN 　　Import caliber: ...

CDL150-10-1 detailed parameters and performance curve of multistage pump

　　 CDL150-10-1 multistage pump 　　 Model: CDL150-10-1 　　Rated flow (m3/h): 150 　　 Rated head (m): 12.5 　　Rated efficiency (%): 52 　　 Shaft power (kw): 9.83 　　Speed (rpm): 2950 　　Impeller material: 304/316L 　　 Guide vane material: 304/316L 　　Rubber code: NBR/EPDM 　　Pump head, inlet and outlet section: HT200 　　Environmental temperature: maximum +40℃ 　　 Connection method: standard flange PN25/DN25 　　 Connection code: F 　　 Medium temperature normal temperature type: -15℃~+70℃ 　　 Medium...

Types and introduction of main flow-passing parts of segmented multistage centrifugal pumps

The main flow parts of a segmented multistage centrifugal pump are suction chamber, impeller and pressurized water chamber. The suction chamber is located in front of the water inlet of the impeller, and plays the role of guiding the liquid to the impeller; the pressurized water chamber mainly has three forms of spiral pressurized water chamber (volute type), guide vane and space guide vane; the impeller is the most advanced pump. The important working element is the core of the flow component. ...

Preparation steps for operation and commissioning of horizontal multistage centrifugal pump

Preparation steps for operation and commissioning of horizontal multistage centrifugal pump.When the horizontal multistage centrifugal pump is commissioned, the following steps must be followed.Note: Professionals must work with necessary protective measures. Wiring, reset, and operation of equipment with residual current (leakage) must be approved by technicians. ↑Click on the pic above to get 【Horizontal multistage pump】 specs,price etc.↑   Horizontal multistage pump test r...

What is the reason for the pump shaft of a multistage centrifugal pump failing to rotate?

       During the daily operation of a multistage centrifugal pump, the pump shaft may suddenly fail to rotate, and the cause of the problem must be identified before the fault can be eliminated. Analysis can be conducted from the aspects of work, user, and process. The reason for the failure is that the multistage pump itself is a long and slender shaft, and slight matching errors in assembly, processing, or design tolerances can cause phenomena such as the pump shaft not ro...

Causes and Solutions of Leakage in Mechanical Seals of Multistage Centrifugal Pumps

       Mechanical seal water failure is one of the most common faults in multistage centrifugal pumps, making the mechanical seal of multistage centrifugal pumps one of the most critical and vulnerable components. The material of the mechanical seal used in multistage centrifugal pumps must be suitable for the liquid medium conveyed by the user. Fluororubber mechanical seals are usually used by pump manufacturers, while some manufacturers use nitrile rubber mechanical seals. ...

How to judge the positive and negative impeller of multistage centrifugal pump?

Multistage centrifugal pump is a common industrial equipment, widely used in water supply, drainage, chemical, electric power and other fields. In the process of using multistage centrifugal pump, the correct installation and judgment of the impeller is very important. Multistage centrifugal pump manufacturer Changsha Zhonglian Pump industry will give you a detailed introduction to the judgment method of the impeller of the multistage centrifugal pump to help r...

How to control and regulate the flow rate of multistage centrifugal pump?

         Each model of multistage centrifugal pump has a certain flow range value, customers can adjust the flow according to their own needs, some customers who use multistage centrifugal pumps for the first time recently consulted us Changsha Zoomlian Pump Industry wants to know how to control and regulate the flow of multistage centrifugal pumps? Next, Xiaobian will introduce to you the method of flow control and adjustment, which is convenient for users and friends t...

Which bearings are more suitable for use on multistage centrifugal pumps?

         In the industrial field, multistage centrifugal pumps are widely used in the process of liquid transportation and fluid pressurization. The selection of suitable bearings is crucial to the performance and life of multistage centrifugal pumps. So, which bearing type should be selected to better meet the requirements of multi-stage centrifugal pumps? Multistage centrifugal pump manufacturer Changsha Zoomlian Pump Industry will conduct a detailed analysis of severa...

Multistage centrifugal pump vs single-stage centrifugal pump: Which is more efficient?

Multistage centrifugal pump vs single-stage centrifugal pump: Which is more efficient? For this problem, the centrifugal pump professional manufacturer Changsha Zoomlian pump industry is very say, now on this issue, talk in detail. A centrifugal pump is a common industrial device used to transport liquids. In centrifugal pumps, multistage and single-stage centrifugal pumps...

The relationship between head, flow and impeller diameter of high-pressure self-balancing corrosion-resistant multistage pump

The relationship between the head, flow and impeller diameter of the high-pressure self-balancing corrosion-resistant multistage pump: The cutting law of the high-pressure self-balancing and corrosion-resistant multi-stage centrifugal pump: (H1: H2)^2=D1: D2Q1: Q2=D1: D2 It can be seen that the diameter of the impeller is proportional to the square of the head and proportional to the flow rate. The larger the diameter of the impeller, the greater the lift and the larger the flow rate, because t...

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