Product Introduction
The Diaphragm Pump for Sewage Treatment produced by Tengsheng in Shanghai is a positive displacement pump designed specifically for the transportation of complex media such as sewage, sludge, and chemicals. With pneumatic/electric dual drive and diaphragm isolation structure as the core, it has the key advantages of no leakage, wear resistance, strong self-priming, anti clogging, and adaptability to harsh working conditions. It can transport various types of sewage and chemicals with a solid content of ≤ 60%, viscosity ≤ 100000cP, pH 0-14, and is suitable for municipal sewage plants, industrial wastewater stations, sludge treatment systems, and other scenarios. It is the core transportation equipment for safe, compliant, and efficient operation of sewage treatment.

Product Advantages
Competitive advantage
The company conducted a competitive advantage analysis to identify its strengths and weaknesses compared to its rivals.
Our Diaphragm Pump for Sewage Treatment is a double diaphragm opposed structure that completely isolates sewage/sludge from the driving components, with a shaft seal free design that completely eliminates leaks (leakage rate ≤ 0.01%); Prevent sewage leakage and pollution of the environment, in compliance with environmental and safety regulations.
Wastewater lifting and transportation: The municipal sewage pipeline network pumps and lifts it to the treatment tank, using pneumatic diaphragm pumps that are explosion-proof and leak proof, and suitable for frequent start stop.
Sludge transportation and dewatering: sedimentation tank sludge lifting, filter press feeding, wide channel sludge diaphragm pump, anti blocking and anti jamming, suitable for high solid sludge.
Highly corrosive industrial wastewater: strong corrosive wastewater from chemical, electroplating, printing and dyeing industries. Choose PTFE/fluoroplastic diaphragm pumps for corrosion resistance and no leakage.
Explosion proof area operation: Industrial wastewater containing flammable and explosive solvents, using pneumatic diaphragm pumps without electric sparks.
Selection Specifications
|
No. |
Model |
Rated Flow (m³/h)R |
Rated Head (m) |
|
1 |
QBY-10 |
0.8 |
50 |
|
2 |
QBY-15 |
1 |
50 |
|
3 |
QBY-25 |
2.4 |
50 |
|
4 |
QBY-32 |
6 |
50 |
|
5 |
QBY-40 |
8 |
50 |
|
6 |
QBY-50 |
12 |
50 |
|
7 |
QBY-65 |
16 |
50 |
|
8 |
QBY-80 |
24 |
50 |
|
9 |
QBY-100 |
30 |
50 |




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