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NZW non-clogging self-priming pump

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Brief introduction
NZW series non-clog Self-Priming(Self priming) Centrifugal Trash Water Pump is our latest generation product base on US technology and craftwork. It is designed for economical & trouble-free operation in handling solid-laden liquids and slurries. The self-priming centrifugal NZW Series is the standard for industrial and sewage applications. The heavy duty construction and easy-to-service design have made NZW Series pumps the standard in the industry. The combination of different sized pumps, impeller trims and speed variations ensure that the correct capacity pump will be matched to the exact requirements of your system, whether it's a small sub-division or a large waste collection system. These pumps feature a large volute design that allows them to reprime automatically in a completely open system without the need for suction or discharge check valves - and they can do it with the pump casing only partially filled with liquid and a completely dry suction line.

■Flow rate：Q= 8~1275 （m³/h）


■Total head：H=6~63 (m)


■Pump speed：n=1450/2900rpm


■Design temperature：T=-20~90℃ 


■Fluid s.g.：γ≤1.3


■Pump diameter：50~350mm


■Solids Handling Impeller

Two-vane, semi-open, solids handling impeller handles up to 3" (76 mm) diameter solids, depending on pump model. Pump out vanes on impeller shroud reduce foreign material buildup behind impeller and reduce pressure on seal and bearings for extended pump life.

■Exclusive Abrasion-Resistant Seal

Exclusive double-floating, self-aligning oil lubricated mechanical cartridge seal with stationary and rotating face of silicon carbide is specifically designed for abrasive industrial wastewater service.

■Removable Cover Plate

Removable cover plate provides quick and easy access to pump interior without disconnecting piping. Clogs can be removed and pump returned to service in minutes. Impeller, seal, wearplate and flap valve can also be accessed through cover plate opening for inspection or service.

■Replaceable Wearplate

NZW Series pumps feature replaceable wearplates which fasten to the cover plate and can easily be removed for inspection or service. No expensive castings to replace.

■Removable Rotating Assembly

Removal of rotating assembly allows easy inspection of pump shaft or bearings without disturbing pump casing or piping. On most models, simply remove four bolts from the back of the pump and the rotating assembly slides out.

■Drive Variations

NZW Series Pumps are available as basic units for connection to customers' power source or may be flex-coupled or V-belt driven by an electric motor. Pumps may also be powered by gasoline or diesel engines. Electric motor driven pumps with "standby" engine power are also available.


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1. Discharge outlet    2. Flap valve    3. Suction inlet    4. Replacable wearplate    5. Balanced impeller    6. Removable coverplate    7. Pressure relif valve    8. Volute    9. Bearings    10. Mechanical seal

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■Municipal Project, Sewage Project, Instruction Project; 


■Transportation of the sewage of uptown; 


■Sewage transportation in Hospital, hotel,slaughter house,fish breeding; 


■Classification of municipal sewage treatment factory and concentrate treatment systems engineering; 


■Transportation of the factory and contaminated water; 


■Sewage and deposit of water purifying system; 


■Industrial sewage of light industry,paper mill,textile,food prpcessing 

plant,chemical industry,electric utility,deep mines,etc; 


■ Wine and sugar industry; 

  

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sales@zigongpump.com

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