High Lift Horizontal Multistage Centrifugal Mining Water Pump

High Lift Horizontal Multistage Centrifugal Mining Water Pump Structure Chart:

DF type of High Lift Horizontal Multistage Centrifugal Mining Water Pumps are used for transmission of corrosive water from Mine well or similar liquid free of solid particles and temperature arrange -20℃~105℃.

Materails also can be cast iron, ductile iron, stainless steel or as required.

Nomenclature:

DF450-60 High Lift Horizontal Multistage Centrifugal Mining Water Pump

DF means corrosion resistant multistage centrifugal pump

450 means the design point of capacity of the pump is 450m3/h,equivalent as 7500L/Min.

60 means the design point of single-stage head is 60m

Performance table:

Pump Flow Capacity up to 500 cbm/h

Pump Head up to 650 m.

Temperature up to 105 Degree Celsius.

Numbers of Pump Stages: 2~ 10 stages

Pump Rated Speed: 1480 r/min

Production process:

Casting + As-cast + CNC processing + Parts test (Vision inspection + Dimensional measurement + Impeller static equilibrium test) + casings installation and pressure test + Rotor installation and dynamic balance test + Pump installation + mechanical seal test + Deflection tester for the coupling assembly + Test bed testing + Painting + Packing + Shipment

(A)The High Lift Horizontal Multistage Centrifugal Mining Water Pump assembly

Assembly sequence reverses that of disassembly. Following points shall be concerned as they will have effect on normal operation, durability and performance of the pump:

1) Machining accuracy and surface roughness shall be checked and protected. Avoid any scratch and the sealing part shall be clean: Stress on bolts shall be even and well distributed.

2) Concentricity of discharging path of impeller and inlet path of diffuser (guide vane) depends on the dimensions of all parts. The concentricity of matching parts affects the performance of the pump, and therefore the dimension of all parts shall not be modified freely.

3) Rotate the rotor of the pump manually to check its flexibility and check the shaft axial movement within the design requirement before filling any packing material after assembly.

4) Press the packing material after qualification of axial movement and make sure the packing ring in the right position.

(B)Precautions of disassembly

1) Stop the pump by steps;

2) Discharge any liquid inside the pump including cooling water and thin lubricating oil for the bearings.

3) Any pipelines and wires shall be dismounted or remove including balancing tube, water sealing tube and lead wire.

4) Any harm to the parts precision shall be avoided: Cushion blocks are being used when the tie bolt is dismounted for the purpose of any stages loosening which may bend the shaft.

(C)Pump disassembly sequence

1) Dismount the coupling joint first and then unscrew the bolts of bearing gland at the opposite side and the bolts among discharge casing, packing gland and bearing housing. Dismount bearing gland and bearing housing etc.

2) Unscrew nuts of the shaft and dismount the internal ring, pressing gland of the bearing and the rubber ring, then sequentially: packing box (including packing gland, packing ring, packing materials) or mechanical seal parts.

3) Dismount sealing O- ring, shaft sleeve, balancing disk and flat keys on the shaft and then dismount the discharge casing, end guide vane, and balancing sleeve and balancing ring.

4) Dismount flat key and then stage casing, guide vane, impeller sequentially till front guide vane.

5) Unscrew the bolts between suction casing and bearing housing and then bearing gland: Dismount the bearing housing.

6) Withdraw the shaft from the suction casing and unscrew nuts on the shaft. Then dismount internal bearing ring, sealing o-ring and shaft sleeve sequentially,

7) Above dismounting sequences are applicable to the pump with sliding bearing, the only difference is dismounting the bearing parts.

As a professional manufacturer of multistage centrifugal pumps, we can produce different types of pump according to the application. We have D,DF,DY,MD,DG series of traditional multistage pump; D(P), DF(P), DY(P), MD(P) DG(P)series of new types of self balancing multistage pump.

Usually D/D(P) types of multistage pump used for transmission of water free of solid particles and temperature below 80℃, or similar physical and chemical liquid. Suitable for mining, mill and city water supply and drainage.

DF/DF (P) types of multistage pump are used for transmission of corrosive water or similar liquid with temperature range of -20℃ ~ 105℃ and non-solid particles. We will produce according to the gravity, density, working temperature and the suction pressure of the fluid.

DY/DY (P) types of multistage pump used for transmission of non-solid oily liquid and petroleum product with temperature range of -20℃ ~ 105℃ and viscosity less than 120cst.

MD/MD (P) types of multistage pump used for transmission of neutral liquid from mining well or other similar liquid. The density and size of the particles of the sewage shall be less than 1.5% and 0.5mm respectively. The temperature range of the sewage shall be -20℃ ~ 80℃.

DG/DG (P) types of multistage pump used for low and medium pressure hot water transmission, also named as boiler feed pump. Temperature ranges from -20℃ ~ 150℃.

All the max suction pressure shall be 0.6Mpa.

Established in 2010,but with more than 20 years of line experiences in multitage centrifugal pumps,we start from a small factory and now we can manufacture more than 30 types of multitage centrifugal pumps according to different flow capacities and heads and medium tranportation usage.We still trying to develop more industrial pumps to satisfy our customers' need with premium quality but factory price.

Packing: 1.Plywood case or as required for High Lift Horizontal Multistage Centrifugal Mining Water Pump, iron baseplate packed seperately with wooden case if any.

2.full set with electric motor high lift horizontal multistage centrifugal mining water pump

Pump and motor installed on the baseplate and then packed in one wooden case or as required to packed seperately if the number of stages are too much.

Shipping: According to the Price terms,normal loading port Shenzhen port, Shanghai Port etc.

Q1. What is your product range?

We can supply boiler water pump, Multistage centrifugal pump, clean water pump, sewage pump, chemical pump, oil pump, self priming pump, centrifugal submersible pump, single stage pump, industry pump etc.

Q2. Are you a manufacturer?

Yes, we are a professional manufacturer of horizontal multistage pumps over 20 years.You can get factory price of pumps and parts and maintenance techniques support from us.

Q3. What information should I let you know if I want to get a quotation?

Please let us know pump flow capacity, pump head, medium, medium temperature, pump material, quantity, we will recommend relevant product.

Q4. Can you supply motor together?

Yes. We have cooperated factory. And most of the domestic customers require full set. But for foreign customers you can buy similar motor to avoid high custom duty if any.

Q5. What about your quality standard?

Under the ISO9001:2008 and China government standards of multistage centrifugal water pump.

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