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Introduce the basic functions of the product.
| 1.High-efficiency water oxygenation：Inhales air through high-speed impeller rotation, cuts it into fine bubbles and diffuses them into water, rapidly increasing dissolved oxygen content. 2.Water mixing and agitating：Generates strong water flow during aeration, promotes water circulation between upper and lower layers, eliminates water stratification, and stabilizes water quality. 3.Water quality improvement：Improves dissolved oxygen, accelerates decomposition of organic matter in water, reduces harmful substances such as ammonia nitrogen and nitrite, and purifies water quality. 4.Stable submersible operation：Can work underwater for a long time without additional machine rooms and pipelines, suitable for pools, rivers and aquaculture ponds of different depths. |
operational environment
1.Medium Environment 2.Temperature Environment Medium temperature 0℃~40℃, avoid water freezing or high temperature damage to sealing components; ambient temperature -10℃~50℃, take sun protection and anti-freezing measures for outdoor use.3.Installation Environment Can be installed underwater in sewage treatment tanks, oxidation ditches, aeration tanks, fish ponds, rivers, etc.; requires water depth ≥1.5m, no sludge deposition or large debris entanglement at the installation location; the water bottom must be flat or fixed with mounting brackets to prevent equipment tilting.4.Electrical Environment Three-phase 380V/50Hz or customized single-phase 220V power supply; leakage protection switch is required, no strong electromagnetic interference or flammable and explosive gases in the installation area; the electrical control cabinet must be placed in a dry and ventilated indoor space. |
Product advantage
| 1.High-Efficiency Aeration & Oxygenation：The impeller rotates at high speed to cut air, generating fine micro-bubbles with large water contact area. The oxygen utilization rate is 20%~30% higher than that of traditional aerators, quickly improving the dissolved oxygen level of water. 2.Submersible Design, Easy Installation：Can directly operate underwater without building machine rooms and complex pipelines, saving civil engineering costs; equipped with special mounting brackets, it can be used immediately after hoisting, suitable for different water depth scenarios. 3.Low Noise, Energy Saving & Stable Operation：Underwater operation noise is below 60dB, without affecting the surrounding environment; adopts high-efficiency motor and optimized hydraulic structure, with low energy consumption, 24-hour continuous operation and low failure rate. 4.Multi-Functional Integration, Wide Applicability：Integrates aeration, oxygenation and water mixing functions, breaks water stratification and promotes microbial degradation; suitable for municipal sewage, industrial wastewater, river regulation, aquaculture and other scenarios. 5.Corrosion Resistance & Low Maintenance Cost：Wetted parts are made of stainless steel or anti-corrosion coating technology, resistant to slightly corrosive media; reliable sealing structure reduces water leakage failures, no frequent daily maintenance, and prolongs equipment service life. |
technical parameter
| type | QXB submersible aerator |
| material | Cast iron/stainless steel (304/316) |
| Driving type | Direct drive of submersible motor |
| Installation type | Installation of movable hanger |
| Maximum caliber | DN150(6 inches) |
| maximum flow | 150 m³/h |
| Maximum lift | 8 m |
| Maximum power | 22kW |
| the protection grades | IP54 |
| Insulation grade | Class f |
| Standard voltage | 380V/50Hz 、 220V/60Hz、400V/50Hz、440V/60Hz |
product usage
| 1.Municipal sewage treatment：Aeration tanks, oxidation ditches and sedimentation tanks in sewage treatment plants, used for water oxygenation in the biochemical treatment stage to promote microbial degradation of pollutants. 2.Industrial wastewater treatment：Wastewater treatment tanks in chemical, printing and dyeing, papermaking, food processing and other industries, improving the water quality of high-concentration organic wastewater and reducing pollutant indicators. 3.River and lake regulation：Urban black and odorous rivers, landscape lakes and constructed wetlands, breaking water stratification through aeration and oxygenation, inhibiting cyanobacteria growth, and improving water self-purification capacity. 4.Aquaculture industry：Fish ponds, shrimp ponds, crab ponds and other aquaculture waters, continuously supplementing dissolved oxygen, improving aquaculture environment, reducing fish and shrimp floating death, and increasing aquaculture density and yield. 5.Landfill leachate treatment：Leachate regulation tanks in landfills, improving the biodegradability of leachate and providing preconditions for subsequent treatment processes. 6.Emergency water remediation：Emergency treatment of sudden water pollution incidents, rapidly increasing dissolved oxygen in polluted water and alleviating the speed of water quality deterioration. |
Product operation guide
| 一、Installation Check 1.Ensure the mounting bracket/float is firmly fixed and the equipment is lifted stably without tilting; verify that the power voltage and frequency match the motor nameplate. 2.Check for cable damage and intact joint sealing; do not power on the cable directly after immersion. Clear large debris in the installation water area to prevent impeller entanglement. 二、Immersion & Start-up 1.For hanger installation, slowly submerge the equipment to the specified water depth (≥1.5m) to avoid severe collision; adjust the float position for horizontal placement in float installation. 2.Manually rotate the impeller to confirm no jamming before first start-up; turn on the power switch, observe the operation status, and ensure the impeller rotation direction matches the mark. 三、Operation Monitoring 1.Regularly check the aeration effect during operation (fine and uniform bubbles are normal), and monitor the motor current and temperature within the rated range. 2.No-load operation without water is prohibited; in case of abnormal noise, violent vibration or abnormal current, cut off the power immediately and troubleshoot after lifting the equipment completely out of the water. 四、Shutdown & Maintenance 1.Normal shutdown: Cut off the power first, lift the equipment out of the water after the impeller stops rotating completely, and clean the entanglements on the impeller and air inlet. 2.Long-term shutdown: Drain the water in the equipment cavity and check the wear of seals; dry the cable before proper storage, and place the equipment in a dry and ventilated area. 五、Safety Notes 1.Do not move the equipment with power on during underwater operation; power off and hang warning signs during maintenance to prevent electric shock. 2.For corrosive water areas such as aeration tanks, regularly inspect the equipment's anti-corrosion layer and touch up the coating in time. |
FREQUENTLY ASKED QUESTIONS
| Common Problems | Core Causes | Solutions |
| Poor aeration effect with few bubbles | Air inlet blockage, impeller entangled with debris, over-deep/shallow installation | Clean air inlet filter, remove impeller entanglements,adjust to rated water depth (1.5~5m) |
| Abnormal noise/violent vibration during operation | Impeller imbalance, loose mounting bracket, damagedbearing | Correct impeller dynamic balance, tighten bracket bolts,replace damaged bearings |
| Seal leakage and motor water inflow | Worn mechanical seal, failed cable joint sealing, aged O-ring | Replace mechanical seal and O-ring, reseal cable joints,ensure waterproof treatment |
| Motor overload and overheating | Impeller jam caused by excessive water impurities,unstable voltage, poor heat dissipation | Clean water impurities, stabilize input voltage, check ifmotor heat dissipation channels are blocked |
| Tilting of float-mounted equipment | Uneven float inflation, unbalanced counterweight, waterflow impact at installation position | Adjust float inflation, calibrate equipment counterweight,reinstall in stable water area |
Introduce the basic functions of the product.
| 1.High-efficiency water oxygenation：Inhales air through high-speed impeller rotation, cuts it into fine bubbles and diffuses them into water, rapidly increasing dissolved oxygen content. 2.Water mixing and agitating：Generates strong water flow during aeration, promotes water circulation between upper and lower layers, eliminates water stratification, and stabilizes water quality. 3.Water quality improvement：Improves dissolved oxygen, accelerates decomposition of organic matter in water, reduces harmful substances such as ammonia nitrogen and nitrite, and purifies water quality. 4.Stable submersible operation：Can work underwater for a long time without additional machine rooms and pipelines, suitable for pools, rivers and aquaculture ponds of different depths. |
operational environment
1.Medium Environment 2.Temperature Environment Medium temperature 0℃~40℃, avoid water freezing or high temperature damage to sealing components; ambient temperature -10℃~50℃, take sun protection and anti-freezing measures for outdoor use.3.Installation Environment Can be installed underwater in sewage treatment tanks, oxidation ditches, aeration tanks, fish ponds, rivers, etc.; requires water depth ≥1.5m, no sludge deposition or large debris entanglement at the installation location; the water bottom must be flat or fixed with mounting brackets to prevent equipment tilting.4.Electrical Environment Three-phase 380V/50Hz or customized single-phase 220V power supply; leakage protection switch is required, no strong electromagnetic interference or flammable and explosive gases in the installation area; the electrical control cabinet must be placed in a dry and ventilated indoor space. |
Product advantage
| 1.High-Efficiency Aeration & Oxygenation：The impeller rotates at high speed to cut air, generating fine micro-bubbles with large water contact area. The oxygen utilization rate is 20%~30% higher than that of traditional aerators, quickly improving the dissolved oxygen level of water. 2.Submersible Design, Easy Installation：Can directly operate underwater without building machine rooms and complex pipelines, saving civil engineering costs; equipped with special mounting brackets, it can be used immediately after hoisting, suitable for different water depth scenarios. 3.Low Noise, Energy Saving & Stable Operation：Underwater operation noise is below 60dB, without affecting the surrounding environment; adopts high-efficiency motor and optimized hydraulic structure, with low energy consumption, 24-hour continuous operation and low failure rate. 4.Multi-Functional Integration, Wide Applicability：Integrates aeration, oxygenation and water mixing functions, breaks water stratification and promotes microbial degradation; suitable for municipal sewage, industrial wastewater, river regulation, aquaculture and other scenarios. 5.Corrosion Resistance & Low Maintenance Cost：Wetted parts are made of stainless steel or anti-corrosion coating technology, resistant to slightly corrosive media; reliable sealing structure reduces water leakage failures, no frequent daily maintenance, and prolongs equipment service life. |
technical parameter
| type | QXB submersible aerator |
| material | Cast iron/stainless steel (304/316) |
| Driving type | Direct drive of submersible motor |
| Installation type | Installation of movable hanger |
| Maximum caliber | DN150(6 inches) |
| maximum flow | 150 m³/h |
| Maximum lift | 8 m |
| Maximum power | 22kW |
| the protection grades | IP54 |
| Insulation grade | Class f |
| Standard voltage | 380V/50Hz 、 220V/60Hz、400V/50Hz、440V/60Hz |
product usage
| 1.Municipal sewage treatment：Aeration tanks, oxidation ditches and sedimentation tanks in sewage treatment plants, used for water oxygenation in the biochemical treatment stage to promote microbial degradation of pollutants. 2.Industrial wastewater treatment：Wastewater treatment tanks in chemical, printing and dyeing, papermaking, food processing and other industries, improving the water quality of high-concentration organic wastewater and reducing pollutant indicators. 3.River and lake regulation：Urban black and odorous rivers, landscape lakes and constructed wetlands, breaking water stratification through aeration and oxygenation, inhibiting cyanobacteria growth, and improving water self-purification capacity. 4.Aquaculture industry：Fish ponds, shrimp ponds, crab ponds and other aquaculture waters, continuously supplementing dissolved oxygen, improving aquaculture environment, reducing fish and shrimp floating death, and increasing aquaculture density and yield. 5.Landfill leachate treatment：Leachate regulation tanks in landfills, improving the biodegradability of leachate and providing preconditions for subsequent treatment processes. 6.Emergency water remediation：Emergency treatment of sudden water pollution incidents, rapidly increasing dissolved oxygen in polluted water and alleviating the speed of water quality deterioration. |
Product operation guide
| 一、Installation Check 1.Ensure the mounting bracket/float is firmly fixed and the equipment is lifted stably without tilting; verify that the power voltage and frequency match the motor nameplate. 2.Check for cable damage and intact joint sealing; do not power on the cable directly after immersion. Clear large debris in the installation water area to prevent impeller entanglement. 二、Immersion & Start-up 1.For hanger installation, slowly submerge the equipment to the specified water depth (≥1.5m) to avoid severe collision; adjust the float position for horizontal placement in float installation. 2.Manually rotate the impeller to confirm no jamming before first start-up; turn on the power switch, observe the operation status, and ensure the impeller rotation direction matches the mark. 三、Operation Monitoring 1.Regularly check the aeration effect during operation (fine and uniform bubbles are normal), and monitor the motor current and temperature within the rated range. 2.No-load operation without water is prohibited; in case of abnormal noise, violent vibration or abnormal current, cut off the power immediately and troubleshoot after lifting the equipment completely out of the water. 四、Shutdown & Maintenance 1.Normal shutdown: Cut off the power first, lift the equipment out of the water after the impeller stops rotating completely, and clean the entanglements on the impeller and air inlet. 2.Long-term shutdown: Drain the water in the equipment cavity and check the wear of seals; dry the cable before proper storage, and place the equipment in a dry and ventilated area. 五、Safety Notes 1.Do not move the equipment with power on during underwater operation; power off and hang warning signs during maintenance to prevent electric shock. 2.For corrosive water areas such as aeration tanks, regularly inspect the equipment's anti-corrosion layer and touch up the coating in time. |
FREQUENTLY ASKED QUESTIONS
| Common Problems | Core Causes | Solutions |
| Poor aeration effect with few bubbles | Air inlet blockage, impeller entangled with debris, over-deep/shallow installation | Clean air inlet filter, remove impeller entanglements,adjust to rated water depth (1.5~5m) |
| Abnormal noise/violent vibration during operation | Impeller imbalance, loose mounting bracket, damagedbearing | Correct impeller dynamic balance, tighten bracket bolts,replace damaged bearings |
| Seal leakage and motor water inflow | Worn mechanical seal, failed cable joint sealing, aged O-ring | Replace mechanical seal and O-ring, reseal cable joints,ensure waterproof treatment |
| Motor overload and overheating | Impeller jam caused by excessive water impurities,unstable voltage, poor heat dissipation | Clean water impurities, stabilize input voltage, check ifmotor heat dissipation channels are blocked |
| Tilting of float-mounted equipment | Uneven float inflation, unbalanced counterweight, waterflow impact at installation position | Adjust float inflation, calibrate equipment counterweight,reinstall in stable water area |
