4/3 D-Nah Heavy Duty Wear Resisting Mineral Process Centrifugal Slurry Pumps

• Max.Head: 80-110m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: High Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Model NO.: 4/3D-AH
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Horizontal Split Pumps
• Mounting Height: Suction Centrifugal
• Impeller: Closed
• Usage: Pump, Pumps, Condensate Pump, Slurry Pump, Circulating Pump
• Wear Resistant: Anti-Corrosion
• Drive Type: Zvz/Crz/Cvz/Dcz
• Discharge Size: 1 to 18 Inch
• Capacity: 0-1000 (L/S)
• Head: 0-70m
• Transport Package: Wooden Case
• Specification: CE, ISO, SGS
• Trademark: Naipu
• Origin: China
• HS Code: 8413701090
• Production Capacity: 500sets/Month

Product Description

4/3 D-NAH Heavy duty wear resisting mineral process centrifugal slurry pumps

Naipu NP-AH(R) series centrifugal slurry pumps and spare parts can fully interchangeable with world famous brand. These pumps are of heavy duty construction, designed for continous pumping of highly abrasive and corrosive slurries. They feature a wide choice of replaceable abrasion resistant metal or molded elastomer casting liners and impellers, which are all interchangeable within a common casting assembly.


Performance Parameters
 

Type	Allowable Mating Max. Power(Kw)		Clear Water Performance					Impeller
		Material	Capacity/Q m³/hr	Head/m	peed  rpm	Max Eff%	NPSH/m	Nos of Vane	Impeller Diameter/ mm
1.5/1-NAH	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
2X1.5-NAH	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
3X2-NAH	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
4X3-NAH	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
6X4-NAH	60	M	162--360	12--56	800--1550	65	5--8	5	365
		R	144-324	12-45	800-1350	65	3-5
8X6-NAH	300	M	360--828	10--61	500--1140	72	2--9	5	510
		R	324-720	7-49	400-1000	65	5-10
10X8-NAH	560	M	612--1368	11--61	400--850	71	4--10	5	686
		R	540-1188	12-50	400-750	75	4-12
12X10-NAH	560	M	936--1980	7--68	300--800	82	6	5	762
		R	720-1620	7-45	300-650	80	2.5-7.5
14X12-NAH	560	M	1260--2772	13--63	300--600	77	3--10	5	965
		R	1152-2520	13-44	300-500	79	3-8
16X14-NAH	1200	M	1368--3060	11--63	250--550	79	4--10	5	1067
20X18-NAH	1200	M	2520--5400	13--57	200--400	85	5--10	5	1370

 Feature:

1. NP-ZJ series centrifugal slurry pumps and spare parts can fully interchange with world famous brand.
2. These pumps are of heavy-duty construction, designed for continuous pumping of highly abrasive and corrosive slurries.
3. They feature a wide choice of replaceable abrasion resistant metal or moulded elastomer casting liners and Impellers, which are all interchangeable within a common casting assembly.

Typical Applications

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

For example:

Minerals Flotation Processing
Electric Factory Coal Preparation
Coal Washing
Chemical Medium Processing
Effluent Handling
Sand And Gravel Handling

Product Overview 










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.






Quality Control

We have more than 30 inspectors,our pumps and parts do the testing 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.   Decrease the height of the transport or reduce the resistance. Unlock the inlet valve   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  there is air in the inlet The temperature of the liquid is too high	Clear the suction pipe and sluice valve. Lower the height of the suction  Adjust the water valve and let the pump operate in the defined limits. Block the leakage. 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.	Open the cooling water Adjust the oil quantity  Clear the shaft,change oil According to the inlet pressure,adjust the direction of the thrust bearing. 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 

 





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