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Shanghai Changshen Pump Manufacturing Co., Ltd
ZW unobstructed self-priming sewage pump
NegotiableUpdate on 03/15
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Overview
ZW Non clogging Self priming Sewage Pump ZW Non clogging Self priming Sewage Pump integrates self-priming and non clogging sewage, adopts axial reflux external mixing, and through the design of the pump body and impeller flow channel, it can be used as a general self-priming clean water pump without the need for bottom valves and irrigation water, and can also suck and discharge liquids containing large solid particles and long fiber impurities. It is suitable for impurity pumps in municipal sewage engineering, river pond aquaculture, light industry, papermaking, textile, food, chemical, electrical, fiber, pulp and mixed suspension and other chemical media
Product Details
ZW unobstructed self-priming sewage pump
ZW unobstructed self-priming sewage pumpIt integrates self-priming and non clogging sewage discharge, adopts axial reflux external mixing, and through the design of pump body and impeller flow channel, it can suction and discharge impurity liquids containing large solid particles and long fibers without the need for bottom valves and irrigation water like general self-priming water pumps. It is suitable for impurity pumps in municipal sewage engineering, river pond aquaculture, light industry, papermaking, textile, food, chemical, electrical, fiber, pulp and mixed suspension chemical media.
This pump has the characteristics of simple structure, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving, and easy use and maintenance.
Model DescriptionExample: 50ZW15-30PB
Scope of Application
1. The ambient temperature is ≤ 50 ℃, the medium temperature is ≤ 80 ℃, and special requirements can be set at 200 ℃.
2. The pH value of the medium is 6-9 for cast iron and 2-13 for stainless steel.
3. Medium weight not exceeding 1240 kg/M3
4. The self-priming height cannot exceed the specified value of 4.5-5.5 meters, and the length of the suction pipe is 10 meters.
5. The suspended particle diameter is 60% of the pump diameter and the fiber length is 5 times the pump diameter.
Product Usage
ZW type unobstructed self-primingsewage pumpJust like usualSelf priming water pumpThat way, there is no need to install a bottom valve, and it can suction and discharge large solid particles, long fibers, sediment, waste impurities, feces treatment, and all engineering wastewater. It can be used in industries such as municipal sewage engineering, light industry, papermaking, textile, food, chemical, electrical, petroleum, mining, and river pond aquaculture. It is an ideal medium for pumping solid particles, fibers, slurries, and mixed suspensionsImpurity pump.
Main performance parameters
| model | Caliber (mm) | Traffic (m)3/h) | Head (m) | power (kw) | speed (r/min) | Self suction time (min/5m) | efficiency (%) | Net Positive Suction Head (NPSH) (m) | Head (m) Scope of application | weight (kg) | |
| Import | Export | ||||||||||
| 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 |
Structural diagram of ZW type unobstructed self-priming sewage pump
|
| 1 | import flange |
| 2 | slap the door | |
| 3 | Add liquid bolt | |
| 4 | outlet flange | |
| 5 | pump body | |
| 6 | Gas-liquid separation tube | |
| 7 | back cover | |
| 8 | impeller | |
| 9 | mechanical seal | |
| 10 | pump shaft | |
| 11 | front bearing | |
| 12 | Bearing body | |
| 13 | rear bearing | |
| 14 | Coupling |
Installation diagram of ZW type unobstructed self-priming sewage pump
|
| 1 | pump |
| 2 | pressure gauge | |
| 3 | Export vertical pipe | |
| 4 | Inhalation of hard throat | |
| 5 | elbow | |
| 6 | flow control valve | |
| 7 | Export pipeline | |
| 8 | Add liquid plug | |
| 9 | vacuum gauge |
The installation of ZW type unobstructed self-priming sewage pump has a significant impact on the operation and service life of the pump, so it must be carefully carried out. (Refer to the schematic diagram for the installation of standardized pump pipelines)
1. The installation height of the suction inlet of ZW type unobstructed self-priming sewage pump should not exceed 5 meters as much as possible, and special attention should be paid to the sealing of the suction pipeline to avoid air leakage and affect the self-priming capacity and normal operation of the pump.
2. The outlet of the ZW type unobstructed self-priming sewage pump should first be equipped with a vertical pipe (usually 0.4-1 meters) and a pressure gauge, and then the outlet flow control valve and other pipelines should be installed.
3. Reasonably configure the length and diameter of the pump inlet and outlet pipelines to reduce unnecessary head loss along the way. (Reference can be made to the straight pipe friction loss summary table for estimation)
4. When transporting over long distances, larger pipe diameters should be selected. The pump pipeline should have its own support, and the pump body itself is not allowed to bear the load of the pipeline.
5. If a check valve is installed in the discharge pipeline, it should be installed outside the outlet flow control valve.
Installation, use and maintenance of ZW type unobstructed self-priming sewage pump
Installation of ZW type unobstructed self-priming sewage pump
The installation of ZW type unobstructed self-priming sewage pump has a significant impact on the operation and service life of the pump, so it must be carefully carried out.
1. The installation height of the suction inlet of ZW type unobstructed self-priming sewage pump should not exceed 5 meters as much as possible, and special attention should be paid to the sealing of the suction pipeline to avoid air leakage and affect the self-priming capacity and normal operation of the pump.
2. The outlet of the ZW type unobstructed self-priming sewage pump should first be equipped with a vertical pipe (usually 0.4-1 meters) and a pressure gauge, and then the outlet flow control valve and other pipelines should be installed.
3. Reasonably configure the length and diameter of the pump inlet and outlet pipelines to reduce unnecessary head loss along the way. (Reference can be made to the straight pipe friction loss summary table for estimation)
4. When transporting over long distances, larger pipe diameters should be selected. The pump pipeline should have its own support, and the pump body itself is not allowed to bear the load of the pipeline.
5. If a check valve is installed in the discharge pipeline, it should be installed outside the outlet flow control valve.
The use of ZW type unobstructed self-priming sewage pump
1. Before use, check whether the rotation direction of the pump is correct and whether it rotates flexibly.
2. Unscrew the filling plug above the pump body, fill the reservoir, and then tighten the plug. In the future, there will be no need to refill the reservoir when starting up. The pump should not be started and operated when there is insufficient liquid storage, otherwise the pump cannot work properly and the mechanical seal may be damaged.
3. When starting up, the outlet flow control valve should be opened first to facilitate the discharge of gas during the self-priming process. After starting, adjust the opening of the outlet flow control valve to ensure that the pressure gauge reading is within the specified range (various pump type pressure control range tables), avoiding the pump from working within the lower limit of the specified range, to prevent motor overload and burnout caused by excessive shaft power or cavitation caused by excessive flow, affecting the normal operation of the pump and causing strong vibration and noise.
4. During operation, the temperature rise of the pump and motor should be checked regularly. If noise or other abnormal sounds are found, the machine should be stopped for inspection and troubleshooting before resuming operation.
5. When shutting down, the outlet flow control valve should be closed first before shutting down to avoid insufficient liquid storage in the pump due to siphon effect.
6. Regularly refuel and maintain the pump. If it is not used for a long time, the pump should be disassembled, cleaned, and oiled, and stored properly.
Special reminder
1. It is strictly prohibited to idle without liquid in the pump chamber
2. Check if the motor direction is correct, and it is strictly prohibited to reverse for a long time
3. Prohibit long-term operation of pumps under cavitation conditions
4. The inlet pipe must be strictly sealed to prevent water or air leakage
5. It is strictly prohibited for the motor to operate at overload for a long time under low field range and high flow conditions
