ZW Type Clog-Free Self-Priming Sewage Pump Product Overview:
ZW Type Non-Clogging Self-Priming Sewage Pump, also known as Solid-Liquid Pump or Sludge Pump. It combines the functions of a self-priming pump and a non-clogging sewage pump, featuring an axial回流 external mixing design with unique hydraulic engineering. The impeller is housed in a separate impeller chamber, connected to which is the pressure chamber. As the impeller rotates, it generates a strong axial vortex action inside the pump, creating a vacuum at the inlet and head at the outlet. Consequently, debris can be discharged through the pressure chamber, ensuring a completely unobstructed flow path, and its sewage removal effect is unmatched by other self-priming sewage pumps. With the unique design of the pump body and impeller passage, it can operate without the need for a bottom valve and priming water like a standard self-priming clear water centrifugal pump, yet it can also handle liquids containing large particles and long fiber debris.
Section II: Model Significance of the ZW Type Non-Clogging Self-Priming Sewage Pumps

III. Advantages of ZW Type Clog-Proof Self-Priming Sewage Pumps:
The ZW type non-clogging self-priming sewage pump boasts features such as simple structure, excellent self-priming performance, strong sewage discharge capability, high efficiency, energy saving, and easy operation and maintenance, compared to similar domestic products.
The ZW type non-clogging self-priming sewage pump stands at the forefront in the domestic sewage pump product series. It boasts superior technical performance indicators that are leading in the country, reaching international advanced levels, and has a vast market application and promising development prospects.
4. ZW Type Clog-Free Self-Priming Sewage Pump Application:
The ZW type non-clogging self-priming sewage pump can be installed without a bottom valve like a general self-priming clean water pump, and it can also suck and discharge materials containing large solid particles, long fibers, sediments, waste ore impurities, feces, and all kinds of industrial wastewater. It is widely applicable in municipal sewage projects, light industry, papermaking, textiles, food, chemicals, electricity, oil, mining, and river pond aquaculture industries. The ZW type non-clogging self-priming sewage pump is an ideal sludge pump for domestic pumping of solid particles, fibers, slurries, and mixed suspensions.
5. Structural Diagram of ZW Type Non-Clog Self-Priming Sewage Pump

ZW Type Non-Clogging Self-Priming Sewage Pumps are single-stage, single-suction horizontal models. The suction inlet is axial, and the discharge outlet is vertically upward. When viewed from the suction inlet to the motor end, the rotation is clockwise.
ZW Type Non-Clog Self-Priming Sewage Pumps Inlet and Outlet Connections: Standard type is flange (GB115.7-8-88). The matching motor is a Y-type asynchronous motor, which can be either standard or explosion-proof, with further negotiation based on requirements. The pump body is made of HT200, and the impeller is made of QT400-18; stainless steel can also be chosen according to customer needs for corrosive medium transportation.
| Model | Inches of inside and outside diameter (mm) | Flow rate (m³/h) | Flow Rate (m) | Motor Power (kw) | Suction Height (m) |
| 25ZW8-15 | 25×25 | 8 | 15 | 1.5-2P | 5 |
| 32ZW10-20 | 32×32 | 10 | 20 | 2.2-2P | |
| 40ZW20-15 | 40×40 | 20 | 15 | 2.2-2P | |
| 40ZW15-30 | 15 | 30 | 3.0-2P | ||
| 50ZW10-20 | 50×40 | 10 | 20 | 2.2-2P | |
| 50ZW20-15 | 20 | 15 | 2.2-2P | ||
| 50ZW18-22 | 18 | 22 | 3.0-2P | ||
| 50ZW15-30 | 15 | 30 | 3.0-2P | ||
| 65ZW30-18 | 65×50 | 30 | 18 | 4.0-2P | |
| 65ZW20-30 | 20 | 30 | 5.5-2P | ||
| 65ZW25-40 | 25 | 40 | 7.5-2P | ||
| 80ZW40-16 | 80×65 | 40 | 16 | 4.0-4P | |
| 80ZW65-25 | 65 | 25 | 7.5-2P | ||
| 80ZW80-35 | 80 | 35 | 15.0-2P | ||
| 80ZW50-60 | 50 | 60 | 22.0-2P | ||
| 80ZW80-45 | 80 | 45 | 22.0-2P | ||
| 100ZW80-20 | 100×80 | 80 | 20 | 7.5-4P | |
| 100ZW100-15 | 100 | 15 | 7.5-4P | ||
| 100ZW100-20 | 100 | 20 | 11.0-4P | ||
| 100ZW100-30 | 100 | 30 | 22.0-2P | ||
| 100ZW80-45 | 80 | 45 | 30.0-2P | ||
| 100ZW80-60 | 80 | 60 | 37.0-2P | ||
| 100ZW80-80 | 80 | 80 | 45.0-2P | ||
| 125ZW120-20 | 125×125 | 120 | 20 | 15.0-4P | |
| 150ZW200-15 | 150×150 | 200 | 15 | 15.0-4P | |
| 150ZW200-20 | 200 | 20 | 22.0-4P | ||
| 150ZW200-28 | 200 | 28 | 30.0-4P | ||
| 150ZW400-25 | 400 | 25 | 55.0-2P | ||
| 150ZW180-40 | 180 | 40 | 55.0-4P | ||
| 200ZW280-12 | 200×150 | 280 | 12 | 22.0-4P | |
| 200ZW300-18 | 300 | 18 | 37.0-4P | ||
| 200ZW300-25 | 300 | 25 | 45.0-4P | ||
| 200ZW280-28 | 280 | 28 | 55.0-4P | ||
| 250ZW400-22 | 250×200 | 400 | 22 | 55.0-4P | |
| 300ZW800-14 | 300×250 | 800 | 14 | 55.0-4P |






























