Centrifugal Sand And Gravel Pump Large Capacity

River sand suction dredger pump with anti-abrasive material and large flow rate capacity for gravel dredging

Construction

200WN to 500WN dredge pumps are of single casing, single stage cantilevered horizontal centrifugal pumps. Two types of coupling with gear box: frame and pump box.

600WN to 1000WN dredge pumps are of double casings, single stage cantilevered centrifugal pumps. These pumps are equipped with frame and lubrication is force thin oil. The design of double casing the pump working till the volute liner almost worn down and guarantee no leakage when volute liner is worn down.

Easy Uninstallation & Convenient Maintenance

WN dredge pump is of front uninstallation construction to make uninstall easily and convenient maintenance. And special tools are equipped for uninstalling the parts.

Standard four-head trapezoid thread connection between impeller and shaft can transfer powerful torsion and be convenient to uninstall. Impeller uninstall ring at shaft sleeve side also make the impeller uninstallation much easier.

Good Performance

Good NPSH can not only guarantee suction but also make deep dredge and high allowable suction density. Minimum NPSH: 4m.

With wide impeller passage, pump can continuously pump gravel or high plastic clay without clogging. Max allow particle size: 350mm.

Performance curves descend obviously to make pumps adopt pipeline distance changes.

By changing the impeller diameter or impeller rotating speed, it can easily change the discharge with the same flow rate.

Material

Material of wet parts is high wear resistant high chrome alloy.

Considering the maintenance, wear resistant parts are nearly of the same wear life to reduce maintenance & interchange costs.

Low Hydraulic loss, High efficiency, Energy Saving

Efficiency of WN is 2 or 3 percentage higher than other common pumps.

Reliable Shaft Seal, No leakage

Shaft Seal types of 200WN to 500WN: Mechanical seal, packing, or combination of mechanical and packing

600WN to 1000WN uses helical casing L rubber seal which is made of 3 pieces of L seal ring and one special thread shaft sleeve.

Turning

700WN to 1000WN can be equipped with turning to change rotating directions.

Shijiazhuang Aier Machinery Co., Ltd. is a large-scale professional manufacturer of slurry pumps, gravel pumps, dredge pumps, sewage pumps and clean water pumps in China.

All products are mainly supplied to environmental protection, wastewater treatment, urban water supply and drainage, mine, metallurgy, coal, petrochemical, building material, thermal power FGD, river dredging, tailing disposal and other fields. The products are selling well in China and sold far to Germany, U.S., Canada, Australia, Russia, Ukraine, Kazakhstan, Brasil, Chile, Argentina, Bolivia, Malaysia, Indonesia, India, Poland, South Africa, Tanzania, etc.

Our firm has strong technical force and is specially engaged in the research of abrasion resistant materials of slurry pumps, sewage pumps and water pumps and the development of new products. The materials include high chrome white iron, duplex stainless steel, stainless steel, ductile iron, rubber, etc.

We use CFD, CAD method for product design and process design based absorbing experience of world leading pump companies. We integrate molding, smelting, casting, heat treatment, machining and chemical analysis, and have professional engineering and technical personnel.

Our company started to build our new factory in 2013 and finished in Spring of 2014. The new factory is located in Lincheng Xingtai Hebei, covering 67,000 m² and of annual design annual casting capacity 3,000 tons. In the new factory, we can produce different parts from small to huge. Casting & machining orders are welcome as well.