Multistage Pumps

multistage pumps types

Overview：

Multistage pumps applicable to industrial and urban water supply and drainage、pressurized water supply for High-level construction、Garden sprinkler irrigation、Cold or hot water circulation pressure boost and so on, according to the installation type can be divided into vertical and horizontal two kinds.

Multi-stage pumps designed for pumping clean water and similar liquids without solids, fibers & non-explosive. Ideal for water supply and liquid delivering in Cooling systems, Industrial cleaning, fishery, water treatment, as well as liquid boosting and circulation systems etc..

Pump material:cast iron,cast steel,stainless steel.
Seal:packing seal, mechanical seal.

Kemai pumps from China,Here are some of the popular multistage pumps products.Used for boiler feed water, industry, agriculture, coal mine and other industries.

Multistage pumps types:

Horizontal Multistage

D series horizontal multistage pumps

horizontal multistage pumps

D DF DY Series pumps for high-head pumping various kinds of liquids without solids, applicable to a wide range of tough and heavy circumstances.
Type D: ideal for low & medium pressure applications of clean water or similar liquids in miming and municipal water supply and drainage. Liquid Temperature up to 80℃.
Type DF: designed for pumping corrosive liquids with suction pressure up to 0.6 MPa and temperature up to 105℃. Materials of construction, type of seals and the internal construction may vary according to specific liquid to be pumped.
Type DY: Ideal for oils and petrochemical products with temperature up to 150℃ and viscosity up to 120 centipoises.

Features:
Sectional single casing construction, the suction casing, stage casing and discharge casing shall be tied together with tie-bolts and sealed with metal-to-metal surface sealing.

Soft packing as standard shaft sealing, external water cooling system designed for cooling of gland cover and stuffing box. Mechanical seal also available upon request.

The rotor will be supported at both ends by slide or ball bearings that will be lubricated with either oil or grease and cooled by circulation water. The axial thrust of the rotor is balanced by balancing discs. Return water piping shall be designed between the balancing chamber and suction casing.

Pump shall be flexibly coupled with driving motor, clockwise rotation looking from motor side.

For Boiler Feed Pump

DG series Multistage pumps for boiler feed

DG pump is a horizontal multistage centrifugal pump and suitable for transporting pure water (with the contained foreign matters’ content less than 1% and graininess less than 0.1mm and other liquids of both physical and chemical natures similar to those of pure water.

DG model middle and low pressure boiler water supply pump is applicable to transport medium with temperature of not higher than 105℃, and is also applicable for small boiler water supply or transporting medium similar to hot water.

Performance range of model DG series
Flow: 3.75~185m3/h Corollary power: 4.0~400kW
Head: 69~684m Inlet diameter: 40~150mm

DG model hypo-high-pressure boiler water supply pump is applicable to transport medium with temperature of not higher than 160℃,and is also applicable for small boiler water supply or transporting medium similar to hot water.

Performance range of model DG series
Flow: 15~300m3/h Corollary power: 75~1250kW
Head: 390~1050m Inlet diameter: 65~200mm

DG high pressure boiler feed pumps are used for feeding high pressure boiler or pumping high pressure clean water.
The temperature of pumped media is not more than 170 C.
Range of capacity:120-1100m3/h
range of total head:967~2500m

Vertical Multistage

CDL/CDLF vertical multistage centrifugal pumps

CDLF vertical multistage centrifugal pumps

Operating condition：
Thin,clean,non-flammable and non-explosive liquid containing no solid granules and fibers.
Normal temperature type:-15~+70℃
Hot water type:+70~+120℃
Flow:1-200m3/h；
Head:11-240m；
Power:1.5-110kw；
Working Pressure：≤2.4Mpa。
Altitude:up to 1000m

CDL/CDLF multistage pumps overview:
CDL/CDLF is a kind of multifunctional products. It can be used to convey various medium from tap water to in-dustrial liquid at different temperature and with different flow rate and pressure. CDL type is applicable to con-veying non-corrosive liquid, while CDLF is suitable for slightly corrosive liquid.
●Water supply: Water filter and transport in Waterwork, boosting of main pipeline, boosting in high-rise buildings.
●Industrial boosting: Process flow water system,cleaning system, high-pressure washing system, fire fighting
system.
●Industrial liquid conveying: Cooling and air-conditioning system, boiler water supply and condensing system,machine-assciated purpose, acids and alkali.
●Water treatment: Ultrafiltration system, reverse osmosis system, distillation system, separator, swimming pool.
●Irrigatio: Farmland irrigation,spray irrigation, dripping irrigation

Product features:
1.Excellent hydraulic model and advanced manufacturing technology are adopted to greatly improve pump performance and service life.
2.Mechanical seal material is hard alloy and fluorine rubber,can improve the pump reliability operation.
3.CDLF Pump wetted parts is stainless steel, so that the pump can be applied to corrosive media.
4.Overall structure is compact,small in size,light in weight,low in noise,significant in energy saving and convenient.
5.The pump inlet and outlet of the pump are located at the same horizontal line of the pump seat.
6.Using standard motor, the user can easily equip the motor according to the need.