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Naipu® 800 WN 900WN 1000WN 700WN series dredge pump is a new type of sludge pump researched &manufactured by our company,this series pumps are single-stage single suction cantilever horizontal centrifugal pumps with advantages of light weight, good wear-resistance, 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.
Strongly wear-resistant casting alloy iron,whole hardness is not less than 50HRC adopted for casting,impeller,front liner and rear liner of wet end parts.
WN dredging pumps impeller passage is very wide, It can continuously transport gravels or high plastic clay and not happens jam, Especially for dredging sands and damming of the river and seas.
WN Series Dredge Pumps can be also integrated with the gearbox, That mean the pump and gear box share one common shaft. So It doesn't need the pump bearing assembly and frame, In this way, Not only save space, but also reduce cost and breakdown ratio, Let the dredge pump give play to maximum effectiveness.
1. The WN series dredge pump is used in the cabin, while the WN (Q) series used underwater, making our dredge pumps meet the requirements of different hull structures, thus having wide applicability.
2. The overall structure adopts horizontal single-stage single-suction cantilever structure that can provide two ways of connecting with the gear box, i.e. the pump working part is combined with the gear box, or the pump bracket is connected with the gear box through the coupling.
3. The pump casings of 300WN (Q)-500WN (Q), 600WN (Q)-1000WN (Q) adopt single casing structure. While 600WN-1000WN adopts double shell structure, which can ensure the long-term reliable operation of the pump.
4. The WN(Q) series dredge pump adopts the front dismantling structure that is easy to assemble and disassemble, convenient for maintenance and replacing parts.
5. The impeller adopts multi head trapezoidal screwed connection with large transmitted torque, easy to assemble. An impeller dismounting ring is arranged at the rear end of the shaft sleeve to make disassembly convenient.
6. Through optimum design, the WN (Q) series dredge pump has excellent cavitation performance, strong suction capability and large digging depth.
7. WN (Q) series dredge pump has wide smooth runner so as to possess good flow performance. The adjustment of the flow rate and head can be achieved by adjusting the speed or diameter of the impeller.
8. The flow parts use high strength wear-resistant alloy cast iron material with the hardness over 58HRC, so they have strong impact resistance and good corrosion resistance.
9. The hydraulic design uses CFD (Computational Fluid Dynamics) to simulate the flow field, which can improve the efficiency and avoid the local wear of the flow parts due to rapid speed change, thus reducing the consumption of accessories.
10. The packing seal, mechanical seal, reinforced seal (filling grease), screw sleeve seal (L type rubber seal) and other forms of sealing are available to meet customer demand.
11. Grease or oil lubrication can be used for lubrication.
Model Flow Rate (m3/h)Head(m)Speed(rpm)Efficiency(%)Inlet Dia Outlet Dia Max Solid Passing 300WN 1800-2200 20-65 300-550 70-78 350 300 240 400WN 2000-3500 20-60 280-550 70-78 450 400 240 450WN 3200-3800 20-67 250-550 70-78 600 450 240 500WN 4500-5800 20-65 250-550 74-80 650 500 240 600WN 5000-7000 20-65 250-550 74-80 660 600 250 650WN 6000-9000 20-70 200-400 75-85 700 650 260 700WN 7500-12000 20-75 200-400 78-85 760 700 280 750WN 9000-14000 20-75 200-400 78-85 800 750 280 800WN 10000-15000 20-78 200-380 80-84 900 800 300 900WN 12000-19000 20-75 180-350 80-85 960 900 320 1000WN 16000-25000 20-78 180-350 80-85 1200 1000 350
6/4D-G 8/6E-G 10/8F-G 10/8S-G 12/10F-G 12/10G-G 14/12G-G 10/8S-GH 10/8F-GH 12/10G-GH 12/10F-GH 14/12G-G 14/12T-G 18/16 T-G
300WN 400WN 450WN 500WN 600WN 650WN 700WN 800WN 900WN 1000WN
Shijiazhuang NaiPu Pump Co.,ltd is a professional global manufacturer of industrial pumps with more than 30 years production experience. Mainly produces various types of slurry pumps, Gravel sand pumps , dredge Pumps , sewage pumps, sump pumps, high chromium alloy accessories and various OEM and ODM production.Already passed the quality certification ISO9001, environmental certification ISO14001, and health Certification ISO45001. The company covers an area of more than 60,000 square meters, has 150 skilled workers, 50 professional and technical service personnel, and its products are sold all over the world. The annual output is 8,000 tons of accessories, 8,000 pumps, and annual sales of 20 million US dollars.
After years of sustainable development, Naipu has gradually upgraded to an environmentally friendly factory, with environmentally friendly resin sand machine modeling, high-efficiency casting electric furnace, heat treatment, and rough sand cleaning system. Every molding has undergone strict inspection to ensure the full brushing of the protective coating, which is the prerequisite to ensure the production of qualified castings.After passing the environmental and health certification, the workers' working environment has been improved.
Our spare parts inventory is very sufficient to ensure that each customer can replace the spare parts in the first time, and will receive sufficient size inspection and packaging before shipment.
Our Products are suitable for all slurry pumping applications - chemical, mineral processing, power generation and general industry.
We have own foundry , machining , assembly , heat treatment and pump performance test station.
1. NAH , HH L 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 Vertical Froth Pump
8 .AHF Horizontal Froth Pump
9. TL(R) Desulphurization Pump
10.Clean Water Pump
11. OEM Casting machinery wear parts
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