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ZWL Direct Connected Self-Priming Sewage Pump This innovative self-priming sewage pump integrates self-priming and non-clogging technologies into one efficient unit. Utilizing an axial reflux outer recirculation method through the pump body with a uniquely designed impeller passage, there's no need for a bottom valve or irrigation water. It boasts a suction capacity where the outlet diameter allows for fibers up to five times its size and can handle large solid particles with ease. With a self-priming height of up to 5 meters, it serves as a versatile replacement for all types of submersible and liquid-type sewage pumps. It's widely employed across industries such as chemical, electrical, mining, paper, textile, printing, dyeing, environmental protection, medicine, and food. Whether in municipal sewage systems or ponds farming, it stands out as our best pump for handling trash, solid particles, fibers, and slurry mixtures.
The ZWL self-priming sewage pump offers unmatched non-clogging capabilities compared to similar products. Its simple structure ensures excellent self-priming performance and high sewage capacity. With high efficiency and easy maintenance, it leads the domestic market in sewage pump technology, meeting both national and international advanced performance standards. This pump's broad application and promising development prospects make it a top choice for various industries.
Ideal for use in chemical, petroleum, pharmaceutical, mining, paper, textile, food, power plants, municipal sewage works, and public facilities. Additionally, it's perfect for ponds farming and other industries requiring efficient sewage management.
1. Superior Sewage Capacity: The specially designed impeller ensures efficient and non-clogging operation.
2. Energy Efficient: Advanced hydraulic models provide a self-priming efficiency 3-5% higher than average.
3. Excellent Self-Priming Performance: Delivers a self-priming height generally surpassing one meter with a shorter self-priming time.
Working Conditions
1. Ambient temperature should be ≤ 24ºC, and medium temperature ≤ 60ºC.
2. Medium PH value ranges from 6-9 for iron pumps and 1-14 for stainless steel pumps.
3. Maximum particle diameter handled by the pump is 60%, with fiber length up to five times the diameter.
4. The total weight of impurities in the medium should not exceed 15% of the medium's total weight, with a maximum medium weight of 1240kg/m³.
| 1 Motor | 2 Pump shaft(Motor shaft) |
| 3 Water retaining ring | 4 Mechanical seal |
| 5 Pump cover | 6 Pump body |
| 7 Impeller | 8 Sealing ring |
| 9 Drain bolt | 10 Bottom cover plate |
| 11 Base plate | 12 Gas-liquid separation chamber |
| 13 Outlet flange | 14 Plus valve |
| 15 Check valve disc | 16 Intlet flange |
| Type | Flow Q (m3/h) |
Head H (m) |
Power (kw) |
RPM (r/min) |
efficiency (%) |
net positive suction head (m) |
Maximum suction (m) |
self-priming time (min/5m) |
weight (kg) |
| ZWL25-8-15 | 8 | 15 | 2.2 | 2900 | 45 | 2.0 | 5.5 | 3 | 100 |
| ZWL32-5-20 | 5 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL32-10-20 | 10 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL32-9-30 | 9 | 30 | 3 | 2900 | 48 | 2.5 | 5.5 | 3 | 120 |
| ZWL40-10-20 | 10 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL40-20-15 | 20 | 15 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL40-15-30 | 15 | 30 | 3 | 2900 | 48 | 2.5 | 5.5 | 3 | 120 |
| ZWL50-10-20 | 10 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL50-20-12 | 20 | 12 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 | 100 |
| ZWL50-15-30 | 15 | 30 | 3 | 2900 | 48 | 2.5 | 5.5 | 3 | 120 |
| ZWL50-20-35 | 20 | 35 | 5.5 | 2900 | 48 | 2.5 | 5.5 | 3 | 150 |
| ZWL65-30-18 | 30 | 18 | 4 | 1450 | 45 | 2.5 | 5.5 | 3 | 200 |
| ZWL65-25-30 | 25 | 30 | 5.5 | 2900 | 50 | 3.0 | 5.5 | 3 | 20 |
| ZWL65-25-40 | 25 | 40 | 7.5 | 2900 | 50 | 3.0 | 5.5 | 2 | 200 |
| ZWL65-40-25 | 40 | 25 | 7.5 | 1450 | 50 | 3.0 | 5.5 | 2 | 200 |
| ZWL65-65-25 | 65 | 25 | 11 | 2900 | 52 | 3.0 | 5.5 | 2 | 240 |
| ZWL80-40-16 | 40 | 16 | 4 | 1450 | 50 | 3.0 | 5.0 | 3 | 240 |
| ZWL80-40-25 | 40 | 25 | 7.5 | 1450 | 50 | 3.0 | 5.5 | 2 | 200 |
| ZWL80-25-40 | 25 | 40 | 7.5 | 2900 | 50 | 3.0 | 5.5 | 2 | 200 |
| ZWL80-65-25 | 65 | 25 | 11 | 2900 | 52 | 3.0 | 5.5 | 2 | 240 |
| ZWL80-80-35 | 80 | 35 | 15 | 2900 | 45 | 3.0 | 5.5 | 2 | 285 |
| ZWL80-80-35 | 80 | 35 | 15 | 1450 | 50 | 3.0 | 5.5 | 3 | 450 |
| ZWL80-50-60 | 50 | 60 | 22 | 2900 | 55 | 3.0 | 5.0 | 2 | 340 |
| ZWL100-100-15 | 100 | 15 | 7.5 | 1450 | 50 | 4.0 | 5.5 | 3 | 300 |
| ZWL100-80-20 | 80 | 20 | 7.5 | 1450 | 53 | 4.0 | 5.5 | 3 | 300 |
| ZWL100-100-20 | 100 | 20 | 11 | 1450 | 53 | 4.0 | 5.5 | 3 | 340 |
| ZWL100-100-30 | 100 | 30 | 22 | 1450 | 53 | 4.0 | 5.5 | 3 | 510 |
| ZWL125-120-20 | 120 | 20 | 15 | 1450 | 55 | 4.5 | 5.5 | 2 | 500 |
| ZWL150-180-14 | 180 | 14 | 15 | 1450 | 60 | 5.0 | 5.5 | 2 | 500 |
| ZWL150-180-20 | 180 | 20 | 22 | 1450 | 60 | 5.0 | 5.0 | 3.5 | 570 |
| ZWL150-180-38 | 180 | 30 | 37 | 1450 | 65 | 5.0 | 5.0 | 3 | 680 |
| ZWL150-180-38 | 180 | 38 | 55 | 1450 | 45 | 5.0 | 6.0 | 3 | 800 |
| ZWL200-280-14 | 280 | 14 | 22 | 1450 | 65 | 5.0 | 5.0 | 3.5 | 700 |
| ZWL200-280-28 | 280 | 28 | 55 | 1450 | 55 | 4.8 | 5.2 | 3 | 940 |
| ZWL250-420-20 | 420 | 20 | 55 | 1450 | 61 | 6.0 | 4.5 | 2.5 | 1150 |
| ZWL300-800-14 | 800 | 14 | 55 | 1450 | 65 | 6.0 | 4.6 | 2.5 | 1140 |
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