10 8 St – Np Ah Pumping Slurry From Tails Slurry Sump to Thickener

10   8 St - Np Ah Pumping Slurry From Tails Slurry Sump to Thickener

ten / 8 ST – NP AH Pumping slurry from tails slurry sump to thickener

Design Notation
one.5: Ingestion measurement (inch)
1: Discharge size (inch)
B: Body type 

NP-AH Slurry Pump Performance Parameters

Sort Allowable Mating Max. Energy(Kw)   Distinct H2o Functionality Impeller
Content Capacity/Q m³/hr    CZPT/m  peed
Max Eff% NPSH/m Nos of Vane Impeller Diameter/
one.five/1-NP-AH 15 M
12.six–28.eight six–68 1200–3800 40 2–4 5 152
R 10.eight-twenty five.two seven-52 1400-3400 35 3
two/1.five-NP-AH 15 M 32.4–72 6–fifty eight 1200–3200 forty five 3.5–8 5 184
R 25.two-fifty four 5.five-forty one one thousand-2600 50 two.five-five 178
3/two-NP-AH thirty M 39.6–86.four twelve–64 1300–2700 fifty five four–6 5 214
R 36-75.six 13-39 1300-2100 55 two-4 213
4/three-NP-AH thirty M 86.four–198 9–52 one thousand–2200 71 4–six five 245
R seventy nine.2-one hundred eighty 5-34.five 800-1800 59 3-5
6/4-NP-AH 60 M 162–360 twelve–56 800–1550 sixty five five–eight 5 365
R one hundred forty four-324 twelve-forty five 800-1350 sixty five three-5
8/6-NP-AH  three hundred M 360–828 10–sixty one 500–1140 seventy two two–nine 5 510
R 324-720 seven-49 400-a thousand 65 five-ten
ten/8-NP-AH  560 M 612–1368 11–sixty one 400–850 seventy one 4–10 5 686
R 540-1188 twelve-fifty 400-750 75 4-twelve
12/ten-NP-AH 560 M 936–1980 seven–sixty eight 300–800 eighty two 6 five 762
R 720-1620 7-45 300-650 eighty two.five-seven.five
fourteen/twelve-NP-AH 560 M 1260–2772 thirteen–63 300–600 77 three–ten 5 965
R 1152-2520 thirteen-44 three hundred-five hundred seventy nine three-8
sixteen/14-NP-AH 1200 M 1368–3060 11–sixty three 250–550 79 4–10 five 1067
twenty/18-NP-AH 1200 M 2520–5400 thirteen–57 two hundred–400 85 5–10 five  1370


Type AH,HH,M Pump are cantilevered, horizontal, centrifugal slurry pump. They are made for the handing large density slurries in the metallurgical, mining , coal, power, building substance and other industrial section and so forth.
The body plates liner and impeller for variety AH,HH,M pumps have replaceable wear-resistant metallic liners or rubber liners.
The shaft seals for type AH,M, and HH Pump could be adoptable of gland seal , expeller seal or Mechanical seal .
The discharge branch can be positioned at intervals of forty five levels by ask for and oriented to any 8 positions to fit installations and programs.
CZPT assembly use cylindrical composition, which helps adjust the room in between impeller and protect plate liner very easily, and getting taken out entirely when being repaired. CZPTs use grease lubrication. Below are the push types, this kind of as V belt generate, gear reducer push, fluid coupling generate, and frequency conversion drive devices.
Wide functionality, great NPSH and large performance, the pump of this type may possibly be set up in multistage collection to meet the delivery for lengthy length.


AH,HH,M pumps are using for handing powerful abrasive, high density slurries and reduced density, high head slurries in the metallurgical, mining, coal, electricity, creating material and other industrial departments etc.
For illustration: Coal washery processing, managing with the good ore and tailings in metal mine, handing merged bottom and fly ash in a thermal electricity station.

Standard Software

Ball mill discharge   Bottom/fly ash, lime grinding    Coal   Coarse sand
Coarse tailings     Dredging FGD    Fantastic tailings
Flotation Hefty media   Minerals  concentrate   Mineral sands
Ni acid slurry Oil sands Phosphoric acid Phosphate matrix
Method 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

Merchandise Overview 

Naipu Major Pump Variety

Metallic Liner Hefty Obligation Slurry Pump AH Variety
1.5/1B-AH 2/one.5B-AH 3/2C-AH 3/2CC-AH 4/3C-AH 4/3CC-AH 4/3D-AH four/3DD-AH six/4D-AH 6/4DD-AH six/4E-AH six/4EE-AH eight/6E-AH 8/6EE-AH eight/6F-AH eight/6FF-AH eight/6R-AH 10/8ST-AH ten/8F-AH 10/8FF-AH twelve/10ST-AH twelve/10G-AH 12/10F-AH 12/10FF-AH 14/12ST-AH fourteen/12G-AH 14/12FF-AH 14/12F-AH sixteen/14TU-AH 20/18TV-AH

Rubber Liner Weighty Responsibility Slurry Pump AH Variety
one.5/1B-AHR two/1.5B-AHR 3/2C-AHR 3/2CC-AHR 4/3C-AHR four/3CC-AHR 4/3D-AHR four/3DD-AHR six/4D-AHR 6/4DD-AHR 6/4E-AHR 6/4EE-AHR eight/6E-AHR 8/6EE-AHR eight/6F-AHR eight/6FF-AHR eight/6R-AHR ten/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

Steel Liner Substantial CZPT slurry pump HH Variety
1.5/1C-HH three/2nd-HH 3/2DD-HH four/3E-HH four/3EE-HH six/4F-HH 6/4FF-HH six/4x- HH 6S-H 8/6S-H eight/6X-H 6S-HP 8/6S-HP 8/6X-HP 

Metal Liner (Rubber Liner)Slurry Pump M Type
ten/8E-M(R) 10/8R-M(R

Metallic Liner Gravel Sand Pump G Type
six/4D-G six/4DD-G 6/4E-G eight/6E-G 8/6EE-G 10/8F-G 10/8FF-G ten/8S-G twelve/10F-G twelve/10FF-G twelve/10G-G fourteen/12F-G fourteen/12FF-G 14/12G-G 10/8S-GH ten/8F-GH 10/8FF-GH 12/10G-GH 12/10F-GH twelve/10FF-GH fourteen/12G-G fourteen/12T-G eighteen/sixteen T-G 

Steel Liner (Rubber Liner)Frothy Slurry Pump AF Type
2QV-AF(R) 3QV-AF(R) 6SV-AF(R) 8SV-AF(R) 

Workshop Show

We are manufacturing unit of Slurry Pumps ,Sand Gravel Pumps,Dredging Pumps and many others.
We have Mould Workshop,Casting Workshop,Machining Workshop,Testing workshop,and Assembly Workshop and many others.
Our pumps can be a hundred% interchangeable with AH HH G SP L M sequence.
We also undertake OEM service if you supply us drawings or samples.


Naipu Other Pump Parts 

Major 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 CZPTr, CZPT Assembly , Base, Stuffing Box, Gland Assembly, CZPT Housing , Lantern Ring , pump discharge pipe , flange and so on.

Naipu OEM Pump Components

We can create and make a range of pumps according to different media circumstance to meet distinct responsibility demands.There are Rubber Material such as R08 , R12, R26, R33, R38,R55,S03,S12,S31,S21,S42,S51,S52 and many others , Wear Resistant Metal Material such as A05,A07,A12, A33, A49, A51,A61 and and so forth ,Corrosion Resistant Stainless Steel Material such as 201,304, 316, 316L,C55 Duplex Austenitic-Ferritic,Alloy 20,Hastelloy etc, Ceramic lining components specially suitable for strong abrasion and corrosion mediums,and they can be interchangeable with normal slurry pump elements Ceramic Coated Stainless Steel these kinds of as J04,J05,J21,J24,J25,J26,J27,J31 and so on.,Resistant Polyurethane like U01,U38, fully satisfy customers’ ask for.

We can undertake various OEM orders for pumps as nicely as spare elements CZPT according to drawings or samples.

Fundamental Element No. Substance Code          Component Identify
001 E62 Changing Screw
003 G01 Foundation
005   CZPT Assembly
011 E62 Clamp Washer
013 D20 Protect Plate
015 E62 Protect Plate Bolt
017 R26A Protect Plate Liner 
018 R26A Go over Plate Liner (Half)
571 E62 Conclude Cover 
571 G01 Expeller 
571 G01 Expeller Ring
571R R08A Expeller Ring (Rubber)
032 D20 Body Plate 
034 E62 Body Plate Bolt
036 R26A Frame Plate Liner
039 E63 Body Plate Stud
041 A05A,R26A Frame Plate Liner Insert 
043 R26A Frame Plate Liner (Fifty percent)
044 K24 Gland Assembly
060 R08A Consumption Joint
062 D70 Labyrinth
063 K31 Lantern Ring 
064 S18 Impeller O-Ring 
067 E62 Neck Ring 
070 E05 Shaft Crucial
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 CZPTr 
118 K31 Lantern Restrictor
118-one K24 Lantern Restrictor(Lower Circulation)
122 R11A Expeller Ring/Stuffing Box Seal 
124 R08A Volute Liner Seal 
125 R08A Volute Body Seal
132 R08A Discharge Joint Ring 
138 E62 Grease Cup Adaptor
179 C23 Shaft Sleeve CZPTr
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   CZPT Assembly
019 E02 Mounting Plate
041 A05A Back again Liner 
064 S18 Impeller O-Ring 
070 E05 Shaft Crucial
092 A05A Casing 
102 E02 Column
116-one R10A Strainer – Upper (Rubber)
116-two G01 Strainer-Upper (Forged Iron)
116-three U02A Strainer-Higher(Urethane)
116-four C23 Strainer-Upper(SS Mesh)
116L U01A Strainer-Reduce
a hundred twenty five R08A Again Liner Seal 
154 E02 Discharge Pipe
204 R00 Discharge Pipe Gasket 
231 E02 Suction Pipe
290 E02 CZPTr
293 E02 Discharge Pipe Support 
306 E02 Shaft Wrench
430 U04A Nut Covers 
005   CZPT Assembly
019   Mounting Plate 
041   Back again Liner 
064   Impeller O Ring 
070   Shaft Important
092   Casing 
102   Column
116   Strainer-Upper 
116L   Strainer-Reduced
153   Column Clamp
154   Discharge Pipe
290   CZPTr 
291   Socket CZPT Protectors 
293   Discharge Pipe Support
306   Shaft Wrench
421   U-Bolt 


Possible Faults and Settlements

        Faults      Reason        Settlement
1.Pump fails to discharge any h2o,The hand of strain gauge defeat violently  one.Suction pipe don’t have ample drinking water.
2.Suction pipe blocked or the valve is locked.
one. Inject ample h2o
2.unlock the inlet valve,clear the blocks
three.Exclude the air leakage 
2.The pump can not discharge water,the hand of vacuum meter conquer seriously.  one.The inlet valve is unlocked or silted up.
2.The resistance of suction pipe is also big or silted up.
three.The top of suction is way too high. 
one.Unlock the valve or desilting 
two.boost the style of  suction pipe or desilt 
three.Lower the top of the installation.
3.The pump can not discharge h2o,strain gauge shows large strain. one.The resistance of the discharge pipe is also large.
2.The impeller blocked
three.The speed is gradual.
1.Check out and alter the outlet pipe.
2.Obvious the impeller
three. Improve the velocity.
four.The pump doesn’t rotate  The volute is silted up by the blocks.  Very clear the blocks
five.The potential is not enough  one.The blocks of the impeller or the inlet or outlet pipe.
2.The abrasion of the impeller is heavily.
three.The pace is reduced to normal 
4.Pump is mounted unreasonably or the leakage of the inlet pipe.
5.The transporting peak is also high,the loss of the resistance of the inside of pipe are way too massive.
6.The inlet valve not open adequate or blocked
7.The packing seal leaks
1.Very clear the impeller or pipe.
2.Modify the impeller

3.Alter the velocity
4.Put in yet again or cease leaking.


  1. Lessen the peak of the transport or lessen the resistance.
  2. Unlock the inlet valve


  1. Compress the packing tightly
six.The motor of the pump is overloaded  one.The head of the pump exceeds the head of the doing work problem.
2.Not consider the slurry density when picking the pump.
three.The packing press tightly
one.Turn down the outlet valve,minimize the impeller or reduce the velocity.
2.Select the motor once again.
3.Alter the the screw of the  packing gland 
seven.Abnormal sound in the pump, and no water out one.The resistance of the inlet pipe is also massive.
two.The peak of the suction is way too higher.
three.Cavitation occurred 

  1. there is air in the inlet
  2. The temperature of the liquid is also substantial
  1. Distinct the suction pipe and sluice valve.
  2. Lower the top of the suction 
  3. Adjust the drinking water valve and let the pump function in the described limitations.
  4. Block the leakage.
  5. Lowering the liquid temperature.
eight.pump vibrates one.pump cavitate 
2.The block of the impeller single vane 
3.The no concentricity  between the pump shaft and motor shaft
four.Fasteners or foundation free
1.Modify the h2o valve ,lower the top of the installation,reduce the resistance of the inlet.
two.Clear the impeller
3.Alignment once again
4.Fasten the screw,and strengthen the basis.
9.CZPT is overheat  1.lock the cooling water
2.lubrication is not good.
3.the lubrication oil is not very clear
four.the wrong path of the thrust bearing.
5.there is some thing improper with the bearing.
  1. Open the cooling water
  2. Change the oil quantity 
  3. Distinct the shaft,alter oil
  4. In accordance to the inlet force,adjust the course of the thrust bearing.
  5. Modify the bearing 
ten.Packing short life  The content of packing is not good  Adjust the packing 
eleven.pump leak oil 1.High oil stage
2.The rubber components invalid  
three.Assembly dilemma
one.Reduce the oil amount
two.Alter rubber spares
three.Change the assembly
12 Pump head leaking  one.The rubber parts not press properly Assembly once more or press tightly 

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Contact Individual: Karen Tan

You should get in touch with me freely if any inquiries!


10   8 St - Np Ah Pumping Slurry From Tails Slurry Sump to Thickener