300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction

Product Details
Customization: Available
Max.Head: 30-50m
Max.Capacity: >400 L/min

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  • 300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
  • 300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
  • 300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
  • 300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
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Basic Info.

Model NO.
300 WN
Driving Type
Motor
Impeller Number
Single-Stage Pump
Working Pressure
Middle Pressure Pump
Influent Type of Impeller
Single Suction Pump
Position of Pump Shaft
Horizontal Pump
Pump Casing Combined
Verticaljoint Surface Pump
Mounting Height
Suction Centrifugal
Impeller
Closed
Usage
Pump, Pumps, Condensate Pump, Slurry Pump, Circulating Pump, Sand and Gravel Extraction Pump
Color
Blue, Yellow, Red, Green and Others
OEM
Accept
Stock
Yes
After-Sales
Yes
Mqq
1 Unit
Payment Term
Tt or LC
Use
Dredging and Damming of The River and Seas
Price
Negotiate
Transport Package
Packed with Wooden Box or as Customer′s Request
Specification
CE, ISO, SGS
Trademark
Naipu Or OEM
Origin
Shijiazhuang, China
HS Code
8413709990
Production Capacity
5000 Set Per Month

Product Description

 300WN / 12inch Dredging Sand  Pumps for sand and gravel extraction

30 Years Factory of Slurry Pump ,Sand Gravel Pump , Dredging Pump.

300WN / 12 inch Dredging Sand Pumps
300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction



Basic Information:
 
Name: NP-WS Dredging Gravel Pump
Pump Type: Centrifugal
Drvie Type: DCZ
Power: Motor / Diesel
Discharge Size: 100-1000mm
Capacity: 180-25000(m³/h)
Head: 25-76(m)


Type Notation
300WS
300 --- Discharge Size 
WS---- Dredging Sand Pump 

 

NP-WS Dredging  PUMP PERFORMANCE PARAMETERS

 
type Capacity (M3/H) Head (M) Speed (r/min) Efficiency(%) Inlet Dia (mm) Outlet dia.
 
(mm)
NPSHR
(M)
Max dia of flowed particle Weight(T)
five three
100 WS 180-250 25-45 1000-1400 50-58 150 100 <3.5 50 82 0.5
150WS 250-550 20-40 1200-1400 58-60 200 150 <4 76 127 1.1
150WSG 350-700 40-65 800-980 68-71 200 150 <3.5 84 140 1.9
200WS 350-700 20-45 700-980 60-65 250 200 <4.5 105 178 2.3
200WSG 550-1000 40-65 700-850 70-72 250 200 <4 108 180 3.2
250WS 700-1100 20-45 500-750 65-70 300 250 <4 132 220 4.5
250WSG 900-1500 40-60 500-650 70-74 350 250 <4.5 86 144 4.6
300WS 1100-1800 20-40 400-600 65-68 350 300 <4.5 144 241 5.5
300WSG 1500-2200 30-65 400-550 74-78 450 300 <4 144 241 8.0
350WSG 2000-3000 40-65 400-550 74-78 450 350 <4 147 245 8.8
450WSG 3000-4000 35-67 350-500 76-80 600 450 <4.5 125 254 12
500WSG 4000-5500 40-65 350-450 78-80 650 500 <4.8 150 250 17
600WSG 5000-9000 55-80 320-400 81-85 650 600 <6 160 220 35
700WSG 8000-12000 60-85 280-380 83-85 750 700 <6 180 280 50
800WSG 10000-15000 50-70 260-360 79-80 850 800 <6 200 300 58
900WSG 120000-19000 50-75 280-330 83-85 950 900 <6 210 320 85
1000WSG 16000-25000 23-76 180-290 85-87 1100 1000 <6 230 350 126

Application and Feature

Naipu® NP-WS dredging pump is single-stage single-suction cantilever horizontal centrifugal pump with advantages of light weight ,good wear-resistant ,super dredging performance ,perfectly suited for the dredge on the whole construction ,high multiple economy benefits and so on .It throughout meets requirements of the dredge to dredging pumps .The pump mainly consists of the pump head , gearbox specifically for the dredging pump ,high elastic coupling and supervisor system of the driving device for the dredge.

Typical Applications---

Suction Hopper Dredging
Constructional Material
Sand gravel processing
Barge Loading
Sand Reclamation


Construction Drawing 

300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction

300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction

Material of construction

  VOLUTE IMPELLERS BASE EXPELLER EXPELLER RING SHAFT SLEEVE SEALS
Standard High Chrome Alloy High Chrome Alloy  Cast Iron Chrome Alloy
or
SG Iron
Chrome Alloy
or
SG Iron
SG Iron Natural Rubber
Options SG Iron SG Iron Mild Steel
Fabricated
SG Iron SG Iron  EN56C
Ferralium
Hasteloy C
Ceramic
Stellite
Chrome Oxide
Nordel
Neoprene
Viton
Butyl
EPDM

300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction
 

   
Related Products

ShiJiaZhuang NaiPu Pump Co.,Ltd , Is one of professional factory of slurry pump, sand gravel pump , dredging pump , Water pump and spare parts .
NaiPu Pump is devoted to pump solution industry for more than 30 years!

The Pumps are widely used in  in metallurgy, mining, Nonmetallic Mining, Coal, Energy 
resources, Sand mining, Dredging, Environmental protection, Petrochemical engineering, Flue gas desulfurization and other industrial departments.

The Pumps have been exported to USA, Canada, Germany, Russia , Australia, South Asia, North America,  South Africa, and etc , up to more than sixty countries.

NaiPu Main products
1. AH , AHF,Horizontal Slurry Pump
2. SP Vertical sump pump
3. ZJQ Submersible slurry pump
4. G Horizontal sand gravel pump
5. ZJQ Submersible sand pump
6. WS Dredging pump
7. AF Froth Pump

8. TL(R) Desulphurization Pump
8.Clean Water Pump
9. OEM Casting machinery parts 

Main Slurry Pump Parts : Impeller , Volute Liner , Casing , ThroatBush, Frame Plate Liner Insert , Cover Plate , Frame Plate, Pump Liner Expeller , Expeller Ring ,Stuffing Box , Expeller , Pump Shaft , shaft sleeve, Shaft Spacer, Bearing Assembly , Base, Stuffing Box, Gland Assembly, Bearing Housing , Lantern Ring , pump discharge pipe , flange , and so on.
 

Metal Liner Heavy Duty Slurry Pump AH TYPE 
 
1.5/1B-AH 2/1.5B-AH 3/2C-AH 3/2CC-AH 4/3C-AH 4/3CC-AH 4/3D-AH 4/3DD-AH 6/4D-AH 6/4DD-AH 6/4E-AH 6/4EE-AH 8/6E-AH 8/6EE-AH 8/6F-AH 8/6FF-AH 8/6R-AH 10/8ST-AH 10/8F-AH 10/8FF-AH 12/10ST-AH 12/10G-AH 12/10F-AH 12/10FF-AH 14/12ST-AH 14/12G-AH 14/12FF-AH 14/12F-AH 16/14TU-AH 20/18TV-AH
 
Rubber Liner Heavy Duty Slurry Pump AH TYPE 
 
1.5/1B-AHR 2/1.5B-AHR 3/2C-AHR 3/2CC-AHR 4/3C-AHR 4/3CC-AHR 4/3D-AHR 4/3DD-AHR 6/4D-AHR 6/4DD-AHR 6/4E-AHR 6/4EE-AHR 8/6E-AHR 8/6EE-AHR 8/6F-AHR 8/6FF-AHR 8/6R-AHR 10/8F-AHR 10/8X-AHR 12/10ST-AHR 14/12ST-AHR 16/14TU-AHR
 
Metal Liner Vertical Slurry Pump SP TYPE 
 
40PV-SP 65QV-SP 100RV-SP 150SV-SP 200SV-SP 250SV-SP
 
Rubber Liner Vertical Slurry Pump SP TYPE 
 
40PV-SPR 65QV-SPR 100RV-SPR 150SV-SPR 200SV-SPR
 
Metal Liner High Head slurry pump HH TYPE 
1.5/1C-HH 3/2D-HH 3/2DD-HH 4/3E-HH 4/3EE-HH 6/4F-HH 6/4FF-HH 6/4x- HH 6S-H 8/6S-H 8/6X-H 6S-HP 8/6S-HP 8/6X-HP
 
Metal Liner (Rubber Liner)Slurry Pump M TYPE 
10/8E-M(R) 10/8R-M(R)
 
Metal Liner (Rubber Liner)Frothy Slurry Pump AF TYPE
 
2QV-AF(R) 3QV-AF(R) 6SV-AF(R) 8SV-AF(R)
 
Metal Liner Gravel Pump G TYPE 
 
6/4D-G 6/4DD-G 6/4E-G 8/6E-G 8/6EE-G 10/8F-G 10/8FF-G 10/8S-G 12/10F-G 12/10FF-G 12/10G-G 14/12F-G 14/12FF-G 14/12G-G 10/8S-GH 10/8F-GH 10/8FF-GH 12/10G-GH 12/10F-GH 12/10FF-GH 14/12G-G 14/12T-G 18/16 T-G
 
Metal Liner (Rubber Liner ) Slurry Pump L TYPE 

20A-L 50B-L 50B-LR 75C-L 100D-L 150E-L 300S-L


300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction

Production Flow

Model Workshop --casting Work Shop-- Machining workshop--assembly workshop--stockage
300wn / 12inch Dredging Sand Pumps for Sand and Gravel Extraction

  Application

The slurry pump are widely used in mining, power , metallurgy , coal, dredging, building material and other industrial lines to pump concentrate , tailings, sludge and other abrasive , high density slurries.

Possible Faults And Removal
Faults Reason Removal
Pump fails to discharge any liquid Air leaking into suction or gland
Incorrect direction of pump rotation & impeller worn
Suction pipe blocked 
Sealed leakage
Check direction of rotation and replacing impeller 
Removal blockage 
Shaft power consumption is excessive Gland excessively tightened against packing rings
Rotating component 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
Loosen gland bolts
Removal the rubbed part
Replace the bearing
Adjusting belt
Modifying the pump duty and speed
Adjusting drive and pump shaft
 
Bearing is over heating  Lubricants to much or less
Containing impurity in the lubricant 
Bearing worn 
 
Lubricant as requirement
Replace new lubricant
Replace new bearing
Bearing has short time Misalignment or unparallel of drive and pump shaft
Shaft bent
Impeller unbalanced due to wear
Foreign object entered into the bearing or insufficient lubrication
Incorrect procedure followed in fitting bearing
Adjusting drive and pump shaft
Replacing shaft
Removal rubbing and replacing new impeller
Clean the bearing 
Replacing or refitting the bearing
Excessive leakage from stuffing box Packing rings excessive worn
Shaft sleeve worn
Dirty sealing water
Replace new packing rings
Replace shaft sleeve.
Change clean sealing water
Pump vibrates Or is noisy Bearing worn 
Impeller unbalanced
Air entered into suction pipe or blocked
Flow rate no-uniform and pump not primed
Replace by new bearing 
Replace by new impeller
Discharge air and remove block
Improve on the pump feeding.

 

   
Contact Us

 ShiJiaZhuang NaiPu Pump Co.,Ltd

Contact person :Kitty Liu
What App /Mobile :+86-13032609126

Shijiazhuang, Headquarters

Add.:No.368, Xinshi North Road, Shijiazhuang, Hebei Province, China

     

If you are intrested in Dredging Sand  Pumps , please do not hesitate to contact us!

 

 

 

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