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3 inch self-priming sewage pump 3 inch self-priming sewage pump

3 inch self-priming sewage pump



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

SP 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

SP 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.


Main character

1. beautiful shape and fine structure, reliable performance

2. with strong capacity of self priming, no need to equip with flap valve

3. non-clog , and with powerful capacity of passing big solid

4. The unique lubrication oil mechanical seal cavity makes the performance more reliable

5. The hole can make sure that stronger sewage can be cleaned quickly when pump is jammed.

6. When operate, the pump can self-priming with gas and liquid at the same time.

7. Low rotary speed, reliable operation, long useful life, easily maintenance.

8. Very competitive price, high quality, small MOQ, fast delivery,OEM required,exporting plywood case.



Jiangsu Lansheng Pump Industry Technology Co., Ltd. is a professional company that produces self-priming sewage pumps, pipeline centrifugal pumps, and diesel engine self priming pumps.

Our high quality pumps are widely used in a variety of commercial, residential, industrial, agricultural and municipal applications, including water transfer, water pressure boosting, firefighting system water supply, irrigation, water filtration and circulation, water cooling and more. Relying on the competitive price and outstanding quality, our water pumping systems have been exported to over 60 countries.

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Widely used in various commercial, residential, industrial, agricultural, and municipal applications


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