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Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: Naipu
  • Model Number: 50ZJH
  • Theory: Centrifugal Pump
  • Structure: Single-stage Pump
  • Usage: Water
  • Power: Electric
  • Standard or Nonstandard: Standard
  • Fuel: Diesel
  • Pressure: Low Pressure
  • Application: power, building material, industial department
  • OEM: Acceptable
  • Certificate: CE ,SGS, ISO9001
  • Material: A05, A07, A49...

Packaging & Delivery

Packaging Details: Standard export wooden cases, according to the pumps and customer's request
Delivery Detail: Shipped in 15 days after payment

50ZJH High Pressure Centrifugal Pump for Coal Mining Equipment

Product Description

1. Uses and Features

 

Our slurry pumps are suitable for pumping slurry with hard particles and in high density in industrial sectors as of metallurgy, mining, coal, power generation and building material. These pumps can also be applied multi-staged in series. They are classified into three types: M. AH. HH.

 

The M. AH. HH type slurry pumps are those of cantilever, horizontal and centrifugal ones, whose shafts can be sealed by packing seals or by centrifugal type seals. The positions of the pump outlet can be positioned at an interval of 45°according to different requirements, so eight different angles can be applied by rotation in installation.

 

The M. AH type slurry pumps have pump bodies (volute liners, front and back liners) that consist of replaceable wear-resistant metal liners or wear-resistant rubber liners, and impellers can also apply wear-resistant metal material or wear-resistant rubber material. The HH type slurry pumps only apply wear-resistant metal material as their pump bodies and impellers.

 

2. Structural Image

 

HH-Series slurry pumps are suitable for severe slurry conditions with coarse particles and high competency.

2.1     There are two types of material for wet parts (volute liners, front and back liners, impellers):

l          Made of high-chrome alloy material;

l          Made of highly wear-resistant rubber material researched and developed by Naipu company.

Both of them can fulfill the task of slurry pumping with high efficiency and long service life.

2.2     Structure of shaft seals:

l          Packing gland seals;

l          Pressure-reducing metal gland seals;

l          Pressure-reducing rubber gland seals;

l          Mechanical seals.

HH Series slurry pumps have two kinds of structural modes, which are the high-chrome alloy one and the rubber wear-resistance one. The wet parts made of either alloy or rubber can be mixed up in operation.

 

For example: a rubber volute liner and liners can be combined with an alloy impeller in operation, and a rubber impeller can be used together wit an alloy volute liner and liners.

 

3. Structural Image

 

HH-Series slurry pumps are suitable for severe slurry conditions with coarse particles and high competency.

3.1     There are two types of material for wet parts (volute liners, front and back liners, impellers):

l          Made of high-chrome alloy material;

l          Made of highly wear-resistant rubber material researched and developed by Naipu company.

Both of them can fulfill the task of slurry pumping with high efficiency and long service life.

3.2     Structure of shaft seals:

l          Packing gland seals;

l          Pressure-reducing metal gland seals;

l          Pressure-reducing rubber gland seals;

l          Mechanical seals.

HH Series slurry pumps have two kinds of structural modes, which are the high-chrome alloy one and the rubber wear-resistance one. The wet parts made of either alloy or rubber can be mixed up in operation.

 

4. Supply of spare parts

 

We supply our customers with complete sets of equipment as well as a variety of wear-resistant wet parts, and site service is available with service quality guaranteed.

 

Product Construction

1. Slurry pump construction drawing

2.  Main part number at the drawing

032: Frame Plate
110: Volute liner
041:  Frame Plate Liner Insert
124: Volute Cover Seal
122: Stuffing Box Seal


132: Discharge Joint
147: Impeller
013: Cover Plate

083: Throat Bush
060: Intake Joint

3. Materials of construction

 

LINERS

IMPELLERS

CASING

BASE

EXPELLER

EXPELLER RING

SHAFT SLEEVE

SEALS

Standard

Chrome Alloy

Chrome Alloy

SG Iron

SG Iron

Chrome Alloy
or
SG Iron

Chrome Alloy
or
SG Iron

SG Iron

Rubber

 

 

 

Pump parameters

HH slurry pump selection chart

( Note: Approximate performance for clear water,to be used for primary selection only.)

Pump performance parameters

Type

Allowable Mating Max. Power(Kw)

Clear Water Performance

Impeller

Capacity/Q m³/hr

Head/m

Speed/rpm

Max Efficiency/%

NPSH/m

Nos of Vane

Impeller Diameter/mm

1.5X1C-NP-HH

30

16.2-34.2

25-92

1400-2200

20

2-5.5

5

 330

3X2D-NP-HH

60

68.4-136.8

25-87

850-1400

47

3-7.5

5

457

4X3E-NP-HH

120

126-252

12-97

600-1400

50

2-5

5

508

6X4F-NP-HH

560

324-720

30-118

600-1000

64

3-8

5

711

8X6S-NP-HH

560

468-1008

20-94

500-1000

65

4-12

5

711 

Related Products

We can produce many kinds of centrifugal slurry pump for mining ,sand and other solids slurry transporting.

 

 

Packaging & Shipping

Packaging details: 1. Outside package: standard export wooden cases. 2. Inner package: Stretch film.

Our Services
OEM service Produce the pump and spare parts according to client's drawing or sample.
Pump slection Help customers select the type, size and operating speed of pumps that will perform at the lowest cost.
Using service Offer Design, Installation, Repair and Maintenance solutions and Mine measuring up service.
Quality control Pay more attention to the quality in every process with different instruments.
Material service Interchangeable metal design allow best material choice for any application.
After-sales service Provide lifetime after sale service to solve any question during uses and large stock for standard spare parts.
Guarantee One year guarantee for whole machine except of the wet end parts.

 

 

Company Information

Shijiazhuang Naipu Pump Co., Ltd is a professional manufacturing enterprise of slurry pumps. We have about 30 years experiences and export to worldwide countries. Our technical team consists of talents specialized in hydraulic machinery, casting, heat treatment, engineering, material science and machining. We proudly manufacture quality pumps whose parts are 100% reverse interchangeable with major brands. This means no more inventory hassles when you decide to use another pump supplier.

Quality control

Stages of manufactureQuality cotrol activitiesSpecification
Raw material arrivalSampling, material chemical analysisNPB121.1-29-1997
Casting and compositionMaterial material chemical analysis of pump partsNPB121.1-29-1997
Casting quality inspectionNPB302-1998
Key component machiningDimension precision inspectionNPB2105-87
Impeller balancingNPB061-2000
General assemblyProcedure operaionNPB2103-96
Hydraulic static testNPB064-1998

Performance test of pump unit

Capacity and headNPB157-1997
Vibration and noiseJB/T8097-95
Bearing temperatureJB/T5295-91
Final inspectionPackaging of pump unitNPB0157-1997
DocumentsNPB0157-1997
Spare parts and accessoriesNPB0157-1997

1. Our pumps quality has reached domestic and internaional advanced level in this field.

2. We are responsible for our products quality, if there are some quality problems after you received, we will be prmptly returned or replacement the kits. 

CE, SGS, ISO9001 Certification

 

 

FAQ

 

 

Faults

ReasonRemoval
Pump fails to discharge
any liquid.
Incorrect direction of pump rotation
and impeller worn.
Suction pipe blocked
Check direction of rotation and replace a
new impeller
Power consumption
on shaft is excessive
Rotating component is rubbing on a
stationary part.
Bearing worn.
Drive belt tension too tight
Flow rate too large
Pump speed and ratio too high.
Misalignment or unparallel of drive
shaft and pump shaft.
Removal the rub
Replace the bearing
Adjust belt
Modify the pump duty and speed.
Adjust drive and pump shaft
Bearing is over hearingLubricants too much or less.
Containing impurities in the lubricant
Bearing worn.
Lubricating as requirements.
Replace clean lubricant.
Replace new bearing.
Bearing has short life.Misalignment or unparallel of drive
and pump motor.
Shaft bent.
Impeller unbalanced due to wear
Foreign object entered into the
bearing or insufficient lubrication
Incorrect procedure followed in
fitting bearings.
Adjusting drive and pump shaft.
Replacing shaft.
Remove rubbing and replace new impeller
Clean the bearing.
Replace or refit the bearings.
Pump vibrates or is
noisy.
Bearings worn.
Impeller unbalanced.
Air entered into suction pipe or
blocked.
Flow rate is noneuniform and
pump not primed.
Replaced by new bearings.
Replaced by new impeller.
Discharge air and remove block.
Improve on the pump feeding.
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