8 Inch Large Gold Suction Dredge Pump

Price $9283.00 Compare
Min Order 1 Piece
Shipping From Hebei, China
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Shijiazhuang Naipu Pump Co., Ltd.

VIP   Audited Supplier 12 years
Profile Certified by SGS/BV
10/8 F-G
30-50m
>400 L/min
Motor
Single-Stage Pump
High Pressure Pump
Single Suction Pump
Horizontal Pump
Horizontal Split Pumps
Suction Centrifugal
Closed
Pump, Pumps, Condensate Pump, Slurry Pump, Circulating Pump
10/8f-G
10 Inches
8 Inches
Suction Hopper Dredging, Barge Loading
Ce, ISO, SGS
CV/Zvz/Dcz
Packing /Expeller/Mechanical Seal
Naipu or OEM
Wooden Case
CE, ISO, SGS
China
8413701090
Product Description
8 inch Large Gold Suction Dredge Pump

Naipu NP-G series of dredge and gravel pumps is designed specifically for continous pumping of extremely aggressive slurries, with a wide particle size distribution. Capable of handling large particles at consistently high efficiencies results in low cost of ownership. The large volume internal profile of the casing reduces associated velocities further increasing component life.

Typical Application -
Slag Granulation
Suction Hopper Dredging
Dredging
Barge Loading
Sand reclamation
Sugar beet


Product Overview








10/8F-G Pump Parts List 
 
10/8 F-G Pump Parts List 
1Oil Cup D138
2O Ring F109
3Frame Plate  FG8131
4Cover Plate FG108013
5Impeller FG8137
6Frame Plate LinerFG8041
7Shaft SpacerF117
8Stuffing Box F078
9Expeller F028
10Base F003M
11Lantern RestrictorF118
12O Ring FG8124
13Labyrinth Ring F108
14Shaft Sleeve F075
15Lantern Ring F063
16Packing Seal F067
17Gland AssemblyF044
18Volute Liner Seal F10124
19Suction Gasket FG10132
20Discharge Gasket F8132
21Bearing AssemblyF004
22End Cover F024-10
23Labyrinth SleeveF062-10
24Shaft F073MZ
25End Cover F024
26Labyrinth Sleeve F062
27Packing Gasket F011
28Bearing AssemblyF005M


Workshop Photos

Naipu mainly Produce Slurry Pumps, Sand Gravel Pumps, Dredging pumps etc.
We have Mould Workshop,Casting Workshop,Machining Workshop,Assemblying Workshop etc.
Our Pumps and spares can be interchangeable with AH HH M L G AF SP series.
We can do Customized pumps and spares if you supply us drawings or samples.







Quality Control System 

We have about 15-30 QC,we test each pump and parts before delivery.



Possible Faults and Settlements 
 
       Faults     Reason       Settlement
1.Pump fails to discharge any water,The hand of pressure gauge beat violently 1.Suction pipe don't have enough water.
2.Suction pipe blocked or the valve is locked.
1. Inject enough water
2.unlock the inlet valve,clear the blocks
3.Exclude the air leakage 
2.The pump can't discharge water,the hand of vacuum meter beat heavily. 1.The inlet valve is unlocked or silted up.
2.The resistance of suction pipe is too big or silted up.
3.The height of suction is too high. 
1.Unlock the valve or desilting 
2.improve the design of  suction pipe or desilt 
3.Lower the height of the installation.
3.The pump can't discharge water,pressure gauge shows heavy pressure.1.The resistance of the discharge pipe is too big.
2.The impeller blocked
3.The speed is slow.
1.Check and adjust the outlet pipe.
2.Clear the impeller
3. Improve the speed.
4.The pump doesn't rotate The volute is silted up by the blocks. Clear the blocks
5.The capacity is not enough 1.The blocks of the impeller or the inlet or outlet pipe.
2.The abrasion of the impeller is heavily.
3.The speed is low to normal 
4.Pump is installed unreasonably or the leakage of the inlet pipe.
5.The transporting height is too high,the loss of the resistance of the inside pipe are too big.
6.The inlet valve not open enough or blocked
7.The packing seal leaks
1.Clear the impeller or pipe.
2.Change the impeller


3.Adjust the speed
4.Install again or stop leaking.

 
  1. Decrease the height of the transport or reduce the resistance.
  2. Unlock the inlet valve
 
  1. Compress the packing tightly
6.The motor of the pump is overloaded 1.The head of the pump exceeds the head of the working condition.
2.Not consider the slurry density when selecting the pump.
3.The packing press tightly
1.Turn down the outlet valve,cut the impeller or lower the speed.
2.Select the motor again.
3.Adjust the the screw of the  packing gland 
7.Abnormal sound in the pump, and no water out1.The resistance of the inlet pipe is too big.
2.The height of the suction is too high.
3.Cavitation occurred 
  1. there is air in the inlet
  2. The temperature of the liquid is too high
  1. Clear the suction pipe and sluice valve.
  2. Lower the height of the suction 
  3. Adjust the water valve and let the pump operate in the defined limits.
  4. Block the leakage.
  5. Lowering the liquid temperature.
8.pump vibrates1.pump cavitate 
2.The block of the impeller single vane 
3.The no concentricity  between the pump shaft and motor shaft
4.Fasteners or foundation loose
1.Adjust the water valve ,lower the height of the installation,reduce the resistance of the inlet.
2.Clear the impeller
3.Alignment again
4.Fasten the screw,and reinforce the foundation.
9.Bearing is overheat 1.lock the cooling water
2.lubrication is not good.
3.the lubrication oil is not clear
4.the wrong direction of the thrust bearing.
5.there is something wrong with the bearing.
  1. Open the cooling water
  2. Adjust the oil quantity 
  3. Clear the shaft,change oil
  4. According to the inlet pressure,adjust the direction of the thrust bearing.
  5. Change the bearing 
10.Packing short life The material of packing is not good Change the packing 
11.pump leak oil1.High oil level
2.The rubber parts invalid 
3.Assembly problem
1.Lower the oil level
2.Change rubber spares
3.Adjust the assembly
 
12 Pump head leaking 1.The rubber parts not press wellAssembly again or press tightly 

Contact US

Contact Person: Karen Tan 

 


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