h polyurethane slurry pumps

WN450 Sand Dredge Pump

WN450 Sand Dredge Pump

Inlet: 600mm

Outlet: 450mm

Capacity: 3200-3850m3/h

Head: 40-67m

Speed: 350-500r/min

Max.Particles: 354mm

Materials: High chrome alloy

Features

Structure suitable for dredgers: The structure of WN450 type sand dredge pumps are single-casing, single-stage, single-suction, cantilever and horizontal. According to the connection with the gearbox, two structures can be offered: self-carrying bracket and pump-box assembly. The lubrication for the bracket is grease or thin oil.

Easy to Disassembly and Installation, Convenient Maintenance: WN450 sand dredge pump adopts a front-disassembly structure in favor of easy disassembly and maintenance. Also, it is equipped with special disassembly tools for each different part according to each part’s features. The standard trapezoidal quadruple thread is adopted to connect the impeller and shaft, which not only transmits strong torque but also is easy to disassembly.

Good Performance on NPSH: The good NPSH performance of WN450 sand dredge pump ensures the strong suction ability as well as deeper dredging depth and denser dredging concentration.

Good Wear-resistant Performance, Long Service Time of Wet Parts: Wear parts of this kind of dredging pump-impeller, liner and front & back liner plate are adapted anti-wear cast iron alloy whose hardness is more than 58HRC, who has both strong anti-attack feature and higher resistance wear and resistance abrasion features. The hardness of TA31 material that is researched and tested successfully by us can research 70HRC.

Reliable Shaft Sealing Without Leakage: The shaft of WN450 dredging pump uses the mechanical sealing or stuffing sealing or mechanical-stuffing compound sealing.

Performance Parameters

Model Capacity Q (m3/h)Head H (m)Speed n (rpm)Eff. η (%)NPSH (m)Inlet Dia. (mm)Outlet Dia. (mm)Max. Particles (mm) 200WND 600-800 20-40 700-900 60-65<4.5 250 200 178 200WN 750-1000 40-65 700-850 70-72<4 250 200 180 250WND 950-1100 20-40 500-700 65-70<4 300 250 220 250WN 1100-1300 40-65 500-650 70-74<4 350 250 144 300WND 1500-1800 20-40 400-600 65-68<4 350 300 241 300WN 1800-2200 40-65 400-550 74-78<4 450 300 241 350WN 2600-3000 40-65 400-550 74-78<4.5 450 350 245 400WN 2800-3200 20-40 400-550 74-78<4.5 450 400 250 450WN 3200-3850 40-67 350-500 76-80<4.5 600 450 354 500WND 3600-4200 20-40 220-320 72-75<4.8 600 500 330 500WN 4500-5500 40-65 350-450 78-80<4.8 650 500 250 600WN 5000-9000 55-80 280-420 81-85<6 660 600 220 700WN 8000-12000 60-85 280-380 83-85<6 760 700 280 900WN 12000-19000 50-75 280-330 85-87<6 960 900 320 1000WN 16000-25000 23-76 181-290 85-87<6 1200 1000 350

Applications

Construction: • preparation, pumping and recycling of bentonite • transportation of mud, sand, and gravel • pumping in depth and special foundations • moving slurries in civil works • emptying sludge for tunnel construction

Industry: • pumping and recycling in cement mills and concrete factory • sand and gravel winning in quarries • pumping heavy/dirty water in mines(gold, diamonds, coal, copper…) • extraction of very dense and abrasive liquids in mine (salt, uranium…) • waste water treatment plant • cleaning sand filters • cleaning of sedimentation tanks • pumping of scales, tar, oil residues, waste, tailings, lime in industry

Dredging: • cleaning and dredging of marinas, harbors, dams, rivers, lakes, irrigation channels • sand extraction • marine salvage • pipes and cables laying systems • ship unloading • high depth pumping works