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East Dpr Boiler Feed Water Pumpself Balancing Multi-Stage Centrifugal Pump

China East Dpr Boiler Feed Water Pumpself Balancing Multi-Stage Centrifugal Pump

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East Dpr Boiler Feed Water Pumpself Balancing Multi-Stage Centrifugal Pump

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Payment Terms	L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability	Peak Season Lead Time, 1-3 months, Off Season Lead Time, one month
Delivery Time	5-8 weeks
Packaging Details	Wooden case packing
Flow Rate Range	3.75 - 1360 M³/H
Head Range	46 - 1000 M
Inlet Pressure	≤ 0.6MPa
Medium Temperature	-20°c - 105°c
Brand Name	East
Model Number	Dpr
Place of Origin	Germany

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Product Details
Company Details

Product Specification


Payment Terms	L/C,D/A,D/P,T/T,Western Union,MoneyGram	Supply Ability	Peak Season Lead Time, 1-3 months, Off Season Lead Time, one month
Delivery Time	5-8 weeks	Packaging Details	Wooden case packing
Flow Rate Range	3.75 - 1360 M³/H	Head Range	46 - 1000 M
Inlet Pressure	≤ 0.6MPa	Medium Temperature	-20°c - 105°c
Brand Name	East	Model Number	Dpr
Place of Origin	Germany
High Light	Centrifugal horizontal booster pump ，Wilo horizontal booster pump ，Wilo horizontal centrifugal water pump

Product Overview

The DP series horizontal multi - stage centrifugal pumps are single - suction, multi - stage, self - balancing pumps. This series serves as a replacement for D - type horizontal multi - stage pumps. These products feature a wide operating range, excellent cavitation performance, stable operation, fewer wearing parts, high reliability, and low maintenance costs for users. Models with an "S" suffix have a first - stage double - suction structure, which offers even better cavitation performance.

These products comply with GB/T5657 Technical Conditions for Centrifugal Pumps (III) Type, MT/T114 - 2005 Multi - stage Centrifugal Pumps for Coal Mines, and GB/T3216 Acceptance Tests for Rotodynamic Pumps - Grade 1, Grade 2 and Grade 3.

Product Applications

DP - type: Used for transporting clean water without solid particles and with a temperature below 80°C, or liquids with physical and chemical properties similar to clean water.
DP - M type: Used for transporting neutral mine water and other similar sewage with a solid particle content ≤ 1.5%, particle size ≤ 1.3mm, and a temperature below 80°C.
DP - F type: Used for transporting corrosive liquids without solid particles and with a temperature below 80°C. The material of the pump can be reasonably selected according to the transported medium.
DP - Y type: Used for transporting oil - based media without solid particles, with a temperature below 80°C and a viscosity less than 120 centistokes.
DP - R type: Used for transporting clean water without solid particles and with a temperature not exceeding 105°C.

Product Features

Reliable and Safe Structure: The rotor components feature symmetrically - arranged impellers. The axial forces generated by the impellers cancel each other out, enabling self - balancing of the axial force inside the pump without the need for a balance disc structure. The residual axial force is borne by a pair of angular contact ball bearings.
New Technology: The new throttle pressure - reducing device reduces leakage and improves efficiency on the one hand, and also provides auxiliary support to ensure the safe and stable operation of the pump.
Reliable Sealing: The balance structure prevents excessive pressure in the mechanical seal chamber and packing chamber, extending the service life.
Good Cavitation Resistance: With a first - stage impeller and a first - stage double - suction impeller featuring good cavitation performance, along with reliable materials, the pump can be applied in various scenarios with high requirements for net positive suction head.
Reliable Mechanical Seal: There is no axial movement of the pump rotor, solving the problem of poor reliability of the mechanical seal in multi - stage pumps.
Low Maintenance Rate: The failure - prone balance disc structure is eliminated, greatly improving reliability, reducing the number of maintenance times and lowering maintenance costs.
High Efficiency: The impellers and diffusers are well - centered, avoiding the efficiency decline that occurs with the wear of the balance disc and the forward movement of the rotor.
Adaptable to Various Media: By changing the material, it can transport media containing solid particles, oil, and corrosive substances.

Working Range

Flow rate range: 3.75 - 1360 m³/h
Head range: 46 - 1000 m
Inlet pressure: ≤ 0.6MPa
Medium temperature: -20°C - 105°C

Structure Diagram

Single - suction structure for the first - stage

Serial Number, Name and Material List

For the self - balancing multi - stage centrifugal pump with a first - stage single - suction structure, the suction port on the suction section is in the horizontal direction (for DP - R, it is vertically upward), and the discharge port on the discharge section is vertically upward. The suction section, middle sections, discharge section, and secondary suction section of the pump are connected into one body by tightening bolts. The head can be adjusted by increasing or decreasing the number of pump stages.

The rotor is composed of components such as the first - stage impeller, impellers, throttle bushings, back - impellers, and shaft sleeves mounted on the shaft. The bearing adopts a "one - end fixed, one - end floating" grease - lubricated structure. A cylindrical roller bearing is used at the driving end, and a pair of angular contact ball bearings is used at the non - driving end to bear the residual axial force. The pair of angular contact ball bearings are installed face - to - face.

Sealing between the suction section, middle sections, and discharge section of the pump is achieved by sealant. Sealing rings, diffuser sealing rings, etc. are installed between the rotor and the fixed parts for sealing. When the sealing rings are worn to the extent that they affect the pump's performance, they should be replaced in a timely manner.

There are two types of shaft seals: packing seals and mechanical seals.

This series of pumps is directly driven by a prime mover through an elastic coupling. When viewed from the prime mover side, the pump rotates in a clockwise direction.

Structure Diagram
First - stage double - suction structure

The first-stage double-suction impeller of the self-balancing multi-stage centrifugal pump minimizes the net positive suction head required by the pump and improves its cavitation resistance. The suction port on the suction section is in the horizontal direction (for the DP-R model, it is vertically upward), and the discharge port on the discharge section is vertically upward. The suction section, middle sections, discharge section, and secondary suction section of the pump are connected into one body by tightening bolts. The head of the pump can be adjusted by increasing or decreasing the number of pump stages.

The rotor is composed of components such as the first-stage impeller, impellers, throttle bushings, back impellers, and shaft sleeves mounted on the shaft. The bearing adopts a "one fixed section and one floating section" grease-lubricated structure. A cylindrical roller bearing is used at the driving end, and a pair of angular contact ball bearings is used at the non-driving end to bear the residual axial force. The pair of angular contact ball bearings are installed face to face.

Sealing between the suction section, middle sections, and discharge section of the pump is achieved by sealant. Sealing rings, diffuser sealing rings, etc. are installed between the rotor and the fixed parts for sealing. When the sealing rings are worn to the extent that they affect the performance of the pump, they should be replaced in a timely manner.

There are two types of shaft seals: packing seals and mechanical seals.

This series of pumps is directly driven by a prime mover through an elastic coupling. When viewed from the direction of the prime mover, the pump rotates in a clockwise direction.

Main Components Material Table

Type Spectrum Diagram

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

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from Quality China Factory

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Business Type:

Distributor/Wholesaler,Agent,Exporter,Trading Company 
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Year Established:

2019 
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Total Annual:

$2.5 Million -$5 Million
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Employee Number:

20~50 
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Ecer Certification：

Verified Supplier 

. Located in Tianjin, China, Tianjin Shiny-Metals Technologyco., Ltd. is a professional company that specializes in the research and development, design, production, sales, trade, and service of pumps. Our products are exported to more than 40 countries and regions, continuously building our global ... . Located in Tianjin, China, Tianjin Shiny-Metals Technologyco., Ltd. is a professional company that specializes in the research and development, design, production, sales, trade, and service of pumps. Our products are exported to more than 40 countries and regions, continuously building our global ...

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Tianjin Shiny-Metals Technology Co., Ltd.
Room 405A-8, Building 1, Collaborative Development Center, No. 1 Xihuan North Road, Zhongguancun Science and Technology City, Jingjin, Baodi District, Tianjin
https://www.watercleanpump.com/