6′′ China in Sulaimaniya Iraq boston gear coupling factory Alloy in Hyderabad Pakistan flexible gear supplier Wear Resistant Material Flotation Cell Feed Pump with top quality lowest price

6′′  China  in   Sulaimaniya Iraq   boston gear coupling  factory  Alloy  in   Hyderabad Pakistan   flexible gear  supplier  Wear Resistant Material Flotation Cell Feed Pump with top quality lowest price

We – EPG Group the biggest couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828

                                   6” alloy wear resistant material flotation cell feed pump

Model Notation
1.5: Intake size (inch)
1: Discharge size (inch)
B: Frame type 

NP-AH Slurry Pump Performance Parameters

Type Allowable Mating Max. Power(Kw)   Clear Water Performance Impeller
Material Capacity/Q m³/hr    Head/m  peed
Max Eff% NPSH/m Nos of Vane Impeller Diameter/
1.5/1-NP-AH 15 M
12.6–28.8 6–68 1200–3800 40 2–4 5 152
R 10.8-25.2 7-52 1400-3400 35 3
2/1.5-NP-AH 15 M 32.4–72 6–58 1200–3200 45 3.5–8 5 184
R 25.2-54 5.5-41 1000-2600 50 2.5-5 178
3/2-NP-AH 30 M 39.6–86.4 12–64 1300–2700 55 4–6 5 214
R 36-75.6 13-39 1300-2100 55 2-4 213
4/3-NP-AH 30 M 86.4–198 9–52 1000–2200 71 4–6 5 245
R 79.2-180 5-34.5 800-1800 59 3-5
6/4-NP-AH 60 M 162–360 12–56 800–1550 65 5–8 5 365
R 144-324 12-45 800-1350 65 3-5
8/6-NP-AH  300 M 360–828 10–61 500–1140 72 2–9 5 510
R 324-720 7-49 400-1000 65 5-10
10/8-NP-AH  560 M 612–1368 11–61 400–850 71 4–10 5 686
R 540-1188 12-50 400-750 75 4-12
12/10-NP-AH 560 M 936–1980 7–68 300–800 82 6 5 762
R 720-1620 7-45 300-650 80 2.5-7.5
14/12-NP-AH 560 M 1260–2772 13–63 300–600 77 3–10 5 965
R 1152-2520 13-44 300-500 79 3-8
16/14-NP-AH 1200 M 1368–3060 11–63 250–550 79 4–10 5 1067
20/18-NP-AH 1200 M 2520–5400 13–57 200–400 85 5–10 5  1370


Type AH,HH,M Pump are cantilevered, horizontal, centrifugal slurry pump. They are designed for the handing high density slurries in the metallurgical, mining , coal, power, building material and other industrial department etc.
The frame plates liner and impeller for type AH,HH,M pumps have replaceable wear-resistant metal liners or rubber liners.
The shaft seals for type AH,M, and HH Pump may be adoptable of gland seal , expeller seal or Mechanical seal .
The discharge branch can be positioned at intervals of 45 degrees by request and oriented to any eight positions to suit installations and applications.
Bearing assembly use cylindrical structure, which helps adjust the space between impeller and cover plate liner easily, and being removed completely when being repaired. Bearings use grease lubrication. Here are the drive types, such as V belt drive, gear reducer drive, fluid coupling drive, and frequency conversion drive devices.
Wide performance, good NPSH and high efficiency, the pump of this type may be installed in multistage series to meet the delivery for long distance.


AH,HH,M pumps are using for handing EPT abrasive, high density slurries and low density, high head slurries in the metallurgical, mining, coal, power, building material and other industrial departments etc.
For example: Coal washery processing, handling with the fine ore and tailings in metal mine, handing combined bottom and fly ash in a thermal power station.

Typical Application

Ball mill discharge   Bottom/fly ash, lime grinding    Coal   Coarse sand
Coarse tailings     Dredging FGD    Fine tailings
Flotation Heavy media   Minerals  concentrate   Mineral sands
Ni acid slurry Oil sands Phosphoric acid Phosphate matrix
Process chemical Pulp and paper Rod mill discharge SAG mill discharge
Wet crushers Alumina Copper Molybdenum
Iron Ore Gold Lead &zinc Silver
Bauxite Titanium  Steel   Sand & Gravel

Product Overview 

Naipu Main Pump Type

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

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 Gravel Sand 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)Frothy Slurry Pump AF Type
2QV-AF(R) 3QV-AF(R) 6SV-AF(R) 8SV-AF(R) 

Workshop Show

We are factory of Slurry Pumps ,Sand Gravel Pumps,Dredging Pumps etc.
We have Mould Workshop,Casting Workshop,Machining Workshop,Testing workshop,and Assembly Workshop etc.
Our pumps can be 100% interchangeable with AH HH G SP L M series.
We also undertake OEM service if you supply us drawings or samples.


Naipu Other Pump Parts 

Main Slurry Pump Parts : Impeller , Volute Liner , Casing , Throat Bush, 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.

Naipu OEM Pump Parts

We can develop and produce a range of pumps according to different media situation to meet different duty requirements.There are Rubber Material such as R08 , R12, R26, R33, R38,R55,S03,S12,S31,S21,S42,S51,S52 etc , Wear Resistant Metal Material such as A05,A07,A12, A33, A49, A51,A61 and etc ,Corrosion Resistant Stainless Steel Material such as 201,304, 316, 316L,C55 Duplex Austenitic-Ferritic,Alloy 20,Hastelloy etc, Ceramic lining parts especially suitable for EPT abrasion and corrosion mediums,and they can be interchangeable with standard slurry pump parts Ceramic Coated Stainless Steel such as J04,J05,J21,J24,J25,J26,J27,J31 etc.,Resistant Polyurethane like U01,U38, fully meet customers’ request.

We can undertake various OEM orders for pumps as well as spare parts EPT according to drawings or samples.

Basic Part No. Material Code          Part Name
001 E62 Adjusting Screw
003 G01 Base
005   Bearing Assembly
011 E62 Clamp Washer
013 D20 Cover Plate
015 E62 Cover Plate Bolt
017 R26A Cover Plate Liner 
018 R26A Cover Plate Liner (Half)
571 E62 End Cover 
571 G01 Expeller 
571 G01 Expeller Ring
571R R08A Expeller Ring (Rubber)
032 D20 Frame Plate 
034 E62 Frame Plate Bolt
036 R26A Frame Plate Liner
039 E63 Frame Plate Stud
041 A05A,R26A Frame Plate Liner Insert 
043 R26A Frame Plate Liner (Half)
044 K24 Gland Assembly
060 R08A Intake Joint
062 D70 Labyrinth
063 K31 Lantern Ring 
064 S18 Impeller O-Ring 
067 E62 Neck Ring 
070 E05 Shaft Key
073 E05 Shaft
075 D20 Shaft Sleeve
076 D20 Shaft Sleeve (Long)
078 G01 Stuffing Box 
081 E02 Keeper Plate
083 A05A,R26A Throat Bush
085 E02  Cotter 
090 S10 Lip Seal 
109 S18 Shaft O-Ring 
110 A05A Volute Liner
111 Q05 Packing
117 E62 Shaft Spacer 
118 K31 Lantern Restrictor
118-1 K24 Lantern Restrictor(Low Flow)
122 R11A Expeller Ring/Stuffing Box Seal 
124 R08A Volute Liner Seal 
125 R08A Volute Frame Seal
132 R08A Discharge Joint Ring 
138 E62 Grease Cup Adaptor
179 C23 Shaft Sleeve Spacer
210 S46 Shaft O-Ring 
217 S18 Impeller O-Ring 
239 C23 Impeller Release Collar
241 K24 Lip Seal Gland 
302 E02 Lifting Tube 
303 E02 Locating Nut 
304 E02 Volute Lifting Beam
306 E02 Shaft Wrench
310 E02 Stuffing Box / Expeller Ring 
425 R08A Dyna Seal
430 U14 Nut Covers 
005   Bearing Assembly
019 E02 Mounting Plate
041 A05A Back Liner 
064 S18 Impeller O-Ring 
070 E05 Shaft Key
092 A05A Casing 
102 E02 Column
116-1 R10A Strainer – Upper (Rubber)
116-2 G01 Strainer-Upper (Cast Iron)
116-3 U02A Strainer-Upper(Urethane)
116-4 C23 Strainer-Upper(SS Mesh)
116L U01A Strainer-Lower
125 R08A Back Liner Seal 
154 E02 Discharge Pipe
204 R00 Discharge Pipe Gasket 
231 E02 Suction Pipe
290 E02 Spacer
293 E02 Discharge Pipe Support 
306 E02 Shaft Wrench
430 U04A Nut Covers 
005   Bearing Assembly
019   Mounting Plate 
041   Back Liner 
064   Impeller O Ring 
070   Shaft Key
092   Casing 
102   Column
116   Strainer-Upper 
116L   Strainer-Lower
153   Column Clamp
154   Discharge Pipe
290   Spacer 
291   Socket Head Protectors 
293   Discharge Pipe Support
306   Shaft Wrench
421   U-Bolt 


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 out 1.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 vibrates 1.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 oil 1.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 well Assembly again or press tightly 

Contact US

Contact Person: Karen Tan

Please contact me freely if any questions!


The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed EPT parts contained herein are not sponsored, approved, or manufactured by the OEM.


6′′  China  in   Sulaimaniya Iraq   boston gear coupling  factory  Alloy  in   Hyderabad Pakistan   flexible gear  supplier  Wear Resistant Material Flotation Cell Feed Pump with top quality lowest price

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