SW & SWH series  Diesel suction pumps for sewage treatment is our latest generation product base on the latest technology and craftwork. It is designed for economical & trouble-free operation in handling solid-laden liquids and slurries. 
Its known as King of Self priming Pump, and the most idea self priming centrifugal pump. 
New-generation sewage diesel engine pump product. 

1. Stable performance, reliable operation; 
2. Rapid self-priming, high suction head; 
3. Back-pull-out construction: Convenient for maintenance and trouble shooting. Daily maintenance can be performance rapid by common head tools, saving time and labor; 
4. Semi-open impeller structure and non-clogging design: Strong passing capacity, Diameter of maximum solid handling is 76.2mm; 
5. Convenient usage: The pump can be mounted high and dry at floor level, with only the suction line down in the liquid. (the pump shall be filled with water for first start); 

Unique advantage: Very competitive price, high quality, largest China self priming trash pump manufacturer, small MOQ, fast delivery, OEM required, CE, ISO9001: 2008 certification, exporting plywood case. 

Self Priming Pump Application: 
1. Municipal Project, Sewage Project, Instruction Project; 
2. Transportation of the sewage of uptown; 
3. Sewage transportation in Hospital, hotel, slaughter house, fish breeding; 
4. Classification of municipal sewage treatment factory and concentrate treatment systems engineering; 
5. Transportation of the factory and contaminated water; 
6. Sewage and deposit of water purifying system; 
7. Industrial sewage of light industry, paper mill, textile, food prpcessing plant, chemical industry, electric utility, deep mines, etc; 
8. Wine and sugar industry; 
9. Irrigation, flood protection, wastewater, sewage treatment, dewatering, industrial, construction, petroleum etc. 

Features: Solids Handling Impeller, Exclusive Abrasion-Resistant Seal, Removable Cover Plate with Easy-Grip Handle, Replaceable Wear plate, Removable Rotating Assembly. 

Specification: 
1. Inlet/Outlet: 2''(50mm), 3''(80mm), 4''(100mm), 6''(150mm), 8''(200mm), 10''(250mm), 12''(300mm)
2. Impeller Diameter: 158.74mm-457.2mm
3. Rotary Speed: 550RPM-2150 RPM
4. Flow Rates: 8m3/h-1275m3/h20GPM-5500GPM
5. Head: 6m-63m
6. Horsepower: 1HP-125HP
7. N. W: 92KG-998KG
8. G. W: 114KG-1066KG
9. Solid Passing: 20.63mm-76.2mm
10. Material: Cast iron, ductile iron, stainless steel, cast steel, aluminum, bronze
11. Diesel Driving: Water cooled or air cooled
12. Method of Connection: Self-priming pumps are available as basic units or may be flex-coupled, V-belt driven or engine mounted. 
13. Drive Variation: Cummins, Deutz, Ricardo or Chinese Diesel, Electric Motor
14. Skid Mounted on Trailer2 wheels or 4 wheels Trailer/Trailer

Main character: 
1. Beautiful shape and find 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. Special check valve structure can make the pump quickly next time. 
7. When operate, the pump can self-priming with gas and liquid at the same time. 
8. Low rotary speed, reliable operation, long useful life, easily maintenance. 
9. Advanced pressure protector make pump operate safety. 
10. No need for add-on vacuum pumps or compressors, which add to owner maintenance and increase the potential for costly repairs.