Reference image. Final construction follows the confirmed model and quotation.
Stainless Steel Submersible Pumps
ZW Explosion-Proof Self-Priming Sewage Pump/ Stainless Steel Self-Priming Sewage Pump
Model: ZW
ZW Explosion-Proof Self-Priming Sewage Pump/ Stainless Steel Self-Priming Sewage Pump is designed for municipal drainage, wastewater treatment, construction dewatering and industrial effluent. DFIN Pump provides model verification, material selection and technical support based on the actual duty point.
TECHNICAL DATA
Specifications, performance and construction
Confirm the final operating point, materials, motor and connection standard before ordering.
Product Overview
ZW Explosion-Proof Self-Priming Sewage Pump/ Stainless Steel Self-Priming Sewage Pump is an industrial sewage & submersible pump selected for municipal drainage, wastewater treatment, construction dewatering and industrial effluent. The final configuration should be verified against the actual liquid, duty point, temperature, installation and power supply.
Typical Applications
Municipal drainage, wastewater treatment, construction dewatering and industrial effluent.
Design Features
- Solids-handling hydraulic passage
- Submersible or dry-installed configurations
- Automatic control options
- Model and material selection supported by DFIN Pump engineers
Extracted Operating Data
- ：≤100℃
- ：5-800m3/h
- ：2.2-132KW
Values are reference data from the authorized source catalog. Confirm the selected model before ordering.
Technical Performance Data
| model | Port Size(mm) | Flow(m3/h) | Head(m) | Power (kw) | Speed (r/min) | Self-priming time (min/5m) | Efficiency (%) | NPSHr (m) | Head(m) usage range | Weight (kg) | |
| Inlet | Outlet | ||||||||||
| 25ZW8-15 | 25 | 25 | 8 | 15 | 1.5 | 2900 | 3 | 45 | 2.0 | 10-15 | 100 |
| 25ZW8-30 | 25 | 25 | 8 | 30 | 3 | 2900 | 3 | 45 | 2.0 | 24-30 | 120 |
| 32ZW5-20 | 32 | 32 | 5 | 20 | 2.2 | 2900 | 3 | 45 | 2.5 | 15-20 | 100 |
| 32ZW10-20 | 32 | 32 | 10 | 20 | 2.2 | 2900 | 3 | 45 | 2.5 | 15-20 | 100 |
| 32ZW9-30 | 32 | 32 | 9 | 30 | 3 | 2900 | 3 | 48 | 2.5 | 24-30 | 120 |
| 40ZW10-20 | 40 | 40 | 10 | 30 | 2.2 | 2900 | 3 | 45 | 2.5 | 15-20 | 100 |
| 40ZW20-15 | 40 | 40 | 20 | 15 | 2.2 | 2900 | 3 | 45 | 2.5 | 10-18 | 100 |
| 40ZW15-30 | 40 | 40 | 15 | 30 | 3 | 2900 | 3 | 48 | 2.5 | 24-30 | 120 |
| 50ZW10-20 | 50 | 50 | 10 | 20 | 2.2 | 2900 | 3 | 45 | 2.5 | 15-20 | 100 |
| 50ZW20-12 | 50 | 50 | 20 | 12 | 2.2 | 2900 | 3 | 45 | 2.5 | 10-18 | 100 |
| 50ZW18-20 | 50 | 50 | 18 | 20 | 3 | 2900 | 3 | 45 | 2.5 | 18-22 | 120 |
| 50ZW15-30 | 50 | 50 | 15 | 30 | 3 | 2900 | 3 | 48 | 2.5 | 24-30 | 120 |
| 50ZW20-35 | 50 | 50 | 20 | 35 | 5.5 | 2900 | 3 | 48 | 2.5 | 25-35 | 150 |
| 50ZW25-30 | 50 | 50 | 25 | 30 | 5.5 | 2900 | 3 | 48 | 2.5 | 25-30 | 150 |
| 50ZW20-40 | 50 | 50 | 20 | 40 | 7.5 | 2900 | 3 | 48 | 2.5 | 32-40 | 200 |
| 50ZW20-50 | 50 | 50 | 20 | 50 | 11 | 2900 | 3 | 48 | 2.5 | 40-50 | 250 |
| 65ZW30-18 | 65 | 65 | 30 | 18 | 4 | 2900 | 3 | 45 | 2.5 | 13-18 | 160 |
| 65ZW30-18 | 65 | 65 | 30 | 18 | 4 | 1450 | 3 | 45 | 2.5 | 13-18 | 200 |
| 65ZW25-30 | 65 | 65 | 25 | 30 | 5.5 | 2900 | 3 | 50 | 3.0 | 25-30 | 200 |
| 65ZW25-40 | 65 | 65 | 25 | 40 | 7.5 | 2900 | 3 | 50 | 3.0 | 32-40 | 200 |
| 65ZW40-25 | 65 | 65 | 40 | 25 | 7.5 | 2900 | 3 | 50 | 3.0 | 20-25 | 200 |
| 65ZW50-30 | 65 | 65 | 50 | 30 | 7.5 | 2900 | 3 | 50 | 3.0 | 25-30 | 200 |
| 65ZW65-25 | 65 | 65 | 65 | 25 | 7.5 | 2900 | 3 | 52 | 3.0 | 20-25 | 200 |
| 65ZW25-50 | 65 | 65 | 25 | 50 | 11 | 2900 | 3 | 53 | 3.0 | 40-50 | 280 |
| 80ZW40-16 | 80 | 65 | 40 | 16 | 4 | 2900 | 3 | 50 | 3.0 | 13-18 | 180 |
| 80ZW40-16 | 80 | 65 | 40 | 16 | 4 | 1450 | 3 | 50 | 3.0 | 13-18 | 200 |
| 80ZW50-20 | 80 | 65 | 50 | 20 | 5.5 | 1450 | 3 | 50 | 3.0 | 13-20 | 240 |
| 80ZW40-25 | 80 | 65 | 40 | 25 | 7.5 | 2900 | 2 | 50 | 3.0 | 20-25 | 200 |
| 80ZW25-40 | 80 | 65 | 25 | 40 | 7.5 | 2900 | 2 | 50 | 3.0 | 32-40 | 200 |
| 80ZW65-25 | 80 | 65 | 65 | 25 | 7.5 | 2900 | 2 | 52 | 3.0 | 20-25 | 240 |
| 80ZW80-20 | 80 | 65 | 80 | 20 | 7.5 | 1450 | 3 | 52 | 3.0 | 10-20 | 240 |
| 80ZW80-35 | 80 | 65 | 80 | 35 | 15 | 2900 | 3 | 45 | 3.0 | 30-35 | 285 |
| 80ZW40-50 | 80 | 65 | 40 | 50 | 18.5 | 2900 | 2 | 50 | 3.0 | 40-50 | 293 |
| 80ZW50-60 | 80 | 65 | 50 | 60 | 22 | 2900 | 3 | 55 | 3.0 | 48-60 | 326 |
| 100ZW100-15 | 100 | 80 | 100 | 15 | 7.5 | 1450 | 3 | 50 | 4.0 | 10-15 | 300 |
| 100ZW80-20 | 100 | 80 | 80 | 20 | 7.5 | 1450 | 3 | 53 | 4.0 | 10-20 | 300 |
| 100ZW100-20 | 100 | 80 | 100 | 20 | 11 | 1450 | 3 | 53 | 4.0 | 12-20 | 340 |
| 100ZW100-30 | 100 | 80 | 100 | 30 | 22 | 2900 | 2 | 53 | 4.0 | 25-30 | 510 |
| 100ZW80-45 | 100 | 80 | 80 | 45 | 30 | 2900 | 2 | 55 | 4.0 | 35-45 | 560 |
| 100ZW80-60 | 100 | 80 | 80 | 60 | 45 | 2900 | 2 | 53 | 4.0 | 50-60 | 585 |
| 125ZW120-20 | 125 | 125 | 120 | 20 | 15 | 1450 | 2 | 55 | 4.0 | 8-15 | 500 |
| 150ZW180-14 | 150 | 125 | 180 | 14 | 15 | 1450 | 3.5 | 60 | 5.0 | 8-14 | 500 |
| 150ZW150-20 | 150 | 125 | 150 | 20 | 15 | 1450 | 3.5 | 60 | 5.0 | 8-15 | 500 |
| 150ZW200-15 | 150 | 125 | 200 | 15 | 18.5 | 1450 | 3.5 | 60 | 5.0 | 8-15 | 550 |
| 150ZW200-20 | 150 | 125 | 200 | 20 | 22 | 1450 | 3 | 60 | 5.0 | 10-20 | 570 |
| 150ZW180-20 | 150 | 125 | 180 | 20 | 22 | 1450 | 3 | 60 | 5.0 | 10-20 | 570 |
| 150ZW160-30 | 150 | 125 | 160 | 30 | 30 | 1450 | 3 | 65 | 5.0 | 20-30 | 680 |
| 150ZW180-30 | 150 | 125 | 180 | 30 | 37 | 1450 | 3 | 65 | 5.0 | 20-30 | 700 |
| 150ZW180-38 | 150 | 125 | 180 | 38 | 55 | 1450 | 3.5 | 45 | 5.0 | 30-38 | 800 |
| 150ZW150-45 | 150 | 125 | 150 | 45 | 55 | 1450 | 3.5 | 45 | 5.0 | 35-45 | 800 |
| 200ZW280-14 | 200 | 150 | 280 | 14 | 22 | 1450 | 3 | 65 | 5.0 | 8-14 | 820 |
| 200ZW280-20 | 200 | 150 | 280 | 20 | 37 | 1450 | 3 | 62 | 5.0 | 10-20 | 910 |
| 200ZW300-20 | 200 | 150 | 300 | 20 | 45 | 1450 | 3 | 59 | 5.0 | 15-25 | 948 |
| 200ZW280-28 | 200 | 150 | 280 | 28 | 55 | 1450 | 3 | 55 | 4.8 | 18-28 | 1090 |
| 250ZW420-20 | 250 | 200 | 420 | 20 | 55 | 1450 | 2.5 | 61 | 6.0 | 12-20 | 1150 |
| 300ZW800-14 | 300 | 250 | 800 | 14 | 55 | 1450 | 2.5 | 65 | 6.0 | 8-14 | 1400 |
|
Fault |
reason |
Troubleshooting |
|
The pump does not produce water |
1. No storage liquid is added to the pump body or the storage liquid is insufficient. 2. Air leakage in suction pipeline 3.Voltage is too low 4.Suction Lift is too high or suction pipe is too long 5. Mechanical seal leakage is too large |
1. Add enough 2. Eliminate air leakage in pipelines 3.Adjust Voltage 4. Lower the Suction Lift or shorten the pipeline 5. Repair or replace |
|
Insufficient water output from the pump |
1. The impeller flow passage or suction pipe is blocked due to improper use. 2. The impeller is seriously worn 3. Insufficient power and too low speed |
1. Eliminate blockages 2. Replace the impeller 3. Adjust the speed to the rated Speed |
|
Pump noise and excessive vibration |
1. The feet are unstable, 2. Bearing wear is serious 3. The pump and the Motor spindle are not on the same axis |
1. Reinforcement 2. Replace bearings 3.Adjust coaxiality |
|
Bearing temperature is too high |
1. Grease deteriorates or dries out 2. Bearing damage |
1.Replace grease 2. Replacement |
|
Pump leaks |
1. The connecting bolts are loose 2. Frequency of seal wear |
1. Fasten 2. Replacement |
Selection Information Required
Please provide medium, concentration, flow, total head or pressure, temperature, viscosity or solids, voltage, frequency and installation method. DFIN Pump will confirm the suitable model and materials.
Catalog reference: authorized YZJ product data · Model ZW
SELECTION SUPPORT
Application-based pump selection
Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.
Discuss this application