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  • Name: NP-L Low Abrasive Slurry Pump
  • Number: 0.6.1
  • Pump Type: centrifugal
  • Drvie Type: ZVz/CRz/CV/DC
  • Power: motor/diesel
  • Discharge Size: 20 to 550 inch
  • Capacity: 2.34-7920m³/h
  • Head: 6-50m
  • Views : 910

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Naipu® NP-L series Rugged heavy duty slurry pump for medium to lower heads.It incorporates the same design points of the NP-AH(R) and plus higher efficiency impellers at an attractive initial cost.Designed for rugged duties while offering higher efficiencies, the NP-L series is a combination of the proven NP-AH(R) unique features.The pump is available with interchangeable liner options including both metal and various grades of elastomer depending on the application.

Typical Applications---

  Chemical Process
  Heavy Minerals
  Plant Water Supply
  Thickener Overflow
  Paper and Pulp
  Slag Granulation


NP-L(R) Slurry Pump Construction Component
 

 

 

Main Part Number At The Drawing
 

032:Frame Plate
060: Intake Joint
132:Discharge Joint
083:Throat bush
110:Volute Liner
147: Impeller
122: Stuffing Box Seal
036: Frame Plate Liner
013:Cover Plate
018:Cover Plate Liner
124: Volute Cover Seal
041: Frame Plate Liner Insert

 

Materials of Construction
 

 

LINERS

IMPELLERS

CASING

BASE

EXPELLER

EXPELLER RING

SHAFT SLEEVE

SEALS

Standard

Chrome Alloy
Natural Rubber

Chrome Alloy
Natural Rubber

SG Iron

SG Iron

Chrome Alloy
or
SG Iron

Chrome Alloy
or
SG Iron

SG Iron

Rubber
and
Nitrile

Options

Acid Resist™Neoprene
Butyl
Nitrile
Hypalon

Acid Resist™Neoprene
Butyl
Nitrile
Hypalon

N/A

MS
Fabricated

Acid Resist™

Acid Resist™

Acid Resist™

Neoprene
Viton


NP-L(R) SLURRY PUMP SELECTION CHART
 

 

 

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


NP-L SLURRY 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

20A--NP-L

7.5

2.34-10.8

6--37

1400--3000

30

 

4

152.4

50B-NP-L

15

16.2--76

9--44

1400--2800

55

3.5--8

5

190

75C-NP-L

30

18-151

4--45

900--2400

57

3--6

4

229

100D-NP-L

60

50-252

7-46

800--1800

60

2--3.5

4

305

150E-NP-L

120

115--486

 12-51.5

800--1500

65

2--6

4

381

200E-NP-L

120

234--910

9.5--40

600--1100

64

3-6

4

457

250F-NP-L

120

396--1425

8--30

500--800

77

2--10

5

550

300S-NP-L

560

468--2538

8--60

400--950

79

2-10

5

653

350S-NP-L

560

650--2800

10--59

400--840

81

3--10

5

736

400ST-NP-L

560

720--3312

7--51

300--700

80

2--10

5

825

450ST-NP-L

560

1008--4356

9--48

300--600

80

2--9

5

 933

550TU-NP-L

1200

1980-7920

10-50

250-475

86

4-10

5

1213