Product Description
The D series Multistage Ring Section Centrifugal Water Pump is a utility-grade, high-pressure, ring section pump with heavy duty, segmental ring, diffuser design. Axial thrust balance device with stacked rotor construction. Suitable for boiler feed pump and high building, long distance water transferring.
Table of performance parameters:
Structure Design
Horizontal, radially split, ring section pump with radial impellers, single or double flow entry, multistage. The stages are sealed against each other by O rings or by metallic sealing faces and fastened by tie bolts.
Shaft Seal
Packed stuffing box uncooled or cooled.
Mechanical seal uncooled, with jacket cooling, seat ring cooling, injection or circulation.
The shaft is provided with exchangeable shaft sleeve in the shaft seal area.
Parameters of Multistage Centrifugal Water Pump 125D25X2-9
| Flow Capacity |
15-30m3/h |
Delivery Head |
93-618 m |
| impeller diameter |
162mm |
Motor power |
18.5-55 KW |
| Liquid Temperature |
0 - 80 ºC |
Driven By |
Electric Motor / Diesel Engine |
| Seal Type |
Mechanical seal / Gland packing |
Liquid |
Clean water or similar |
| Material of Construction |
Cast Iron / Cast Steel / S.S304 / S.S316 / 2CR13 |
Main Parts Configuration
The pump could be applied to transfer different kinds of liquid by customized wet parts, here followed our recommendation of main configuration:
| Parts Name |
Clean Water |
Sewage |
Hot Water |
Corrosive Liquid |
Oil Liquid |
| Pump Body |
Cast Iron |
Ductile Iron |
Cast Steel/S.S304 |
S.S304/S.S316/S.S2205 |
S.S304/S.S316 |
| Shaft |
Cast Iron |
Ductile Iron |
S.S420/42CrMo |
S.S630 |
S.S420/40Cr |
| Shaft Sleeve |
Carbon Steel |
QT500 |
S.S304 |
S.S316/S.S630/S.S2205 |
S.S304/S.S316 |
| Impeller |
Cast Iron |
Ductile Iron |
Cast Steel/S.S304 |
S.S304/S.S316/S.S2205 |
S.S304/S.S316 |
| Wearing Ring |
Cast Iron |
Ductile Iron |
Cast Steel/S.S304 |
S.S304/S.S316/S.S2205 |
S.S304/S.S316 |
| Bearing |
China Make/NSK/Customized |
| Seals |
Mechanical Seals/Gland Packing Seals |
Product profile:
This series of pumps are horizontal single suction multistage segmented centrifugal pumps using state-recommended hydro-module. The pump is efficient, reliable,and durable with low noise performance,easy maintenance and wide scope of usages.We specialize in manufacturing D,DF,DY and MD series of single-suction multistage .Our pumps are widely applicable.
Our pump is applicable to deliver those fluid without solid particles or any other suspended stuff, water for instance. While oily and corrosive or solid-contained fluid can be pumped by means of material modification,sealing methods, and cooling system adding.
The max.inlet pressure shall be 0.6MPa.
Scope of application
Horizontal multi-stage centrifugal pumps according to their scope of use can be divided into the following types:
D type: Used for transmission of water free of solid particles and temperature below 80 ºC,or similar physical and chemical liquid.Suitable for mining,mill and city water supply and drainage. Cast iron material wet parts;1045,080M46 ASTM steel for shaft.
DF type: Used for transmission of corrosive liquid with temperature below 80 ºC and non-solid particles. Material sealing methods, structure of the pump and motor model can be determined by medium,gravity,density,working temperature and the suction pressure.
DY type: Used for transmission of non-solid oily liquid and petroleum product with temperature below 80 ºC and viscosity less than 120 cSt.
MD type: Used for transmission of neutral liquid from mining well or other similar liquid. The density and size of particles of the sewage shall be less than 1.5% and 0.5mm respectively. The temperature below 80 ºC.
Scope of behavior :
D , DF , DY and MD pumps have the same performance parameters
The inlet and outlet diameter of the pump ranges 40~300mm
Flow Q=3.75~850m3/h
Lift H=19~816m
Motor power N=5.5~1600kw
Model's meaning
Such as D (DF, DY, MD)600- 60x6
D -----horizontal multi-stage fresh water/ multistage centrifugal pump
DF ----mine corrosion resistant horizontal multi stage centrifugal pump
DY --horizontal multi-stage centrifugal oil pump
MD --mine wearing resistant horizontal multi stage centrifugal pump
600 -design point flow is 600m3/h
60 ---design point single-stage lift: 60m
6 -----pump stages: 6
About us:
Application scenario---the pump house:
Scope of application:
Package shipment:
1.What products do you mainly produce?
Our company's main products include: self-balancing multi-stage centrifugal pumps, parallel self-balancing multi-stage centrifugal pumps, split-type multi-stage centrifugal pumps, balance plate multi-stage centrifugal pumps, boiler feed water pumps and other series as well as intelligent drainage control systems.
2.What information should I provide when I request a quote?
Under normal circumstances, if you want to get an accurate quotation, it is recommended that you provide us with this information: water pump flow, head, on-site working voltage, frequency, temperature, pH value, solid particle content of the transported liquid, on-site installation conditions (horizontal installation or vertical installation) and other information.It doesn't matter if you don't understand, our business manager will help you determine it.
3.Are your centrifugal pumps in stock?
There are many models and configurations of centrifugal pumps. Except for a small number of large-capacity conventional models that are in stock, most models and configurations are not in stock. They are customized products. We need to first base on your on-site flow, head, and The water pump is selected based on working conditions such as medium temperature, PH value, and installation conditions. After the pump model and configuration are determined, it can be delivered to the workshop for production order.
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