Proper installation and operation directly affect the aeration performance, reliability, and service life of an HTA Jet Aerator. Following the recommended storage, installation, startup, and operating procedures helps maintain stable aeration performance and reduces the risk of equipment damage, nozzle blockage, and improper air-water distribution. This guide summarizes the practical requirements for handling, installing, commissioning, and operating the HTA Jet Aerator based on the Hetai equipment manual.
Table of Contents
Pre-Installation Storage and Arrival Inspection
Proper equipment handling begins when the HTA Jet Aerator arrives at the project site. Inspect the outer packaging and internal components immediately after delivery. If you identify damage to the packaging or equipment, report it to Jiangyin Hetai or the transportation company within 3 working days after delivery. The equipment warranty applies to the original and undamaged packaging, while Hetai reserves the right to inspect reported damage.
For storage, keep the HTA Jet Aerator in a dry and well-ventilated indoor area and retain its original packaging. Protect the equipment from freezing, excessive heat, and direct sunlight. In addition, keep the equipment away from flammable or explosive materials and avoid handling or storage practices that could damage the aerator or its packaging.
If the equipment remains at the construction site before installation, minimize the storage period whenever possible. For long-term storage, consult Jiangyin Hetai for appropriate protective measures based on the storage environment.
During transportation, Hetai uses wooden cases to protect the equipment from impact. Customers with specific packaging requirements can discuss customized packaging arrangements with Hetai before shipment.
HTA Jet Aerator Installation Procedure
The HTA Jet Aerator installation process follows three main stages: preparation, leveling, and connection. Careful control of each stage helps maintain the designed air-water flow and prevents installation errors from affecting subsequent operation.
Installation Preparation
Before installation, thoroughly remove stones, metal fragments, wood pieces, and other debris from the aeration tank. Foreign objects can damage the equipment or enter the flow path and obstruct the jet nozzles.
Use suitable stainless steel or plastic piping, such as ABS or PVC, for the equipment connections. The diameter of each branch pipe should match the specifications of the HTA Jet Aerator. Before connecting the aerator, clean the piping system by air blowing or water flushing to remove accumulated debris that could restrict flow or affect aeration performance.
Equipment Leveling
During installation, position the HTA aeration arm 400–550 mm above the tank bottom. Maintaining this distance is important for achieving the intended jet aeration effect.
Connect the equipment’s water inlet flange and air inlet flange to their corresponding pipelines. Secure the pipelines properly so that the aerator remains stable during operation and does not experience excessive movement or mechanical stress.
Aerator Connection
The HTA Jet Aerator uses water inlet and air inlet flange connections with international-standard loose-sleeve plastic-lined flanges. Align the aerator flanges with the corresponding fixed pipe flanges before completing the connection and fixation.
Follow the recommended installation sequence from bottom to top: water inlet pipe → HTA Jet Aerator → air pipe. This sequence helps prevent excessive pipe clearance and avoids forcing the equipment into position.
Because wastewater treatment environments can expose pipes and supports to corrosive conditions, apply appropriate corrosion protection to the piping and support structures. Proper corrosion control helps protect the installation and maintain long-term structural integrity.
Startup, Operation, and Maintenance
Correct startup and daily operation are essential for maintaining aeration performance and protecting the HTA Jet Aerator. Operators should follow the equipment requirements and monitor the air-water operating conditions throughout the commissioning and operating stages.
Startup and Leak Testing
Before startup, inspect the aeration tank again and remove stones, wood pieces, iron blocks, and other foreign objects. Where possible, minimize the time between equipment installation and water filling.
If water cannot enter the tank immediately, avoid painting, welding, cement sealing, or similar work near the aeration system or on top of the tank. Such activities can introduce foreign materials into the system and damage the HTA Jet Aerator.
To check air tightness, fill the tank with clean water. Drinking water is not required, but the water should not contain large amounts of sediment or debris. Raise the water level to 20 cm above the top of the HTA Jet Aerator.
Introduce air for 5–10 minutes and inspect the system for obvious leaks. Then close the valve and check the system again for smaller leaks. A minor leak may be corrected by adjusting the air volume. If a large amount of air escapes from a location other than the HTA jet port, inspect the piping and aerator for leakage or damage and repair the problem before normal operation.
If normal startup cannot follow immediately after leak testing, maintain a water level at least 1 m above the aerator. This protects the equipment from ultraviolet radiation and extreme hot or cold weather. During extended shutdowns, also monitor evaporation and replenish lost water when necessary.
When the ambient temperature falls below freezing, maintain the water level at approximately 200 mm above the aerator according to the equipment requirements.
Commissioning Before Formal Operation
Before formally evaluating oxygen transfer performance or placing the equipment into regular operation, run the HTA Jet Aerator at the maximum design air flow rate and circulating water volume for one week, or at least three days.
This commissioning period allows the equipment to complete its initial running-in process and helps verify stable operation before formal performance measurement or continuous operation.
Daily Operation
During normal operation, adjust the air flow rate according to the dissolved oxygen requirements of the aeration tank. However, operators should adjust the HTA circulating water volume together with the air flow rate.
Changes in the air-to-water ratio can affect the effective operating area and oxygen transfer performance of the aerator. Maintaining an appropriate air-water ratio is therefore important for stable aeration.
Operators should also maintain the specified operating conditions. The wastewater temperature should remain between 5°C (41°F) and 40°C (104°F), while the air temperature at the HTA air inlet should not exceed 60°C. If the equipment needs to operate outside these temperature limits, consult Jiangyin Hetai before operation.
The particle size entering the equipment’s water inlet should not exceed 5 mm. Preventing oversized particles from entering the system helps reduce the risk of jet nozzle blockage and associated aeration performance problems.
If the HTA Jet Aerator must operate under conditions outside the equipment manual, consult Hetai’s technical team before making changes to the operating conditions. A site-specific operating plan can help prevent equipment damage or performance degradation caused by unsuitable conditions.
Key Operating Considerations for Reliable Aeration
The HTA Jet Aerator requires coordinated control of air flow, circulating water, water depth, temperature, and inlet conditions. Operators should therefore avoid adjusting a single operating parameter without considering its effect on the overall air-water balance.
Regular inspection should focus on potential air leaks, pipeline blockage, abnormal equipment movement, and changes in aeration performance. Early detection of these problems can help reduce unplanned shutdowns and unnecessary maintenance.
For projects with unusual wastewater characteristics or operating conditions, the aerator should be evaluated against the actual process requirements before installation. Wastewater temperature, solids content, particle size, basin configuration, and required oxygen transfer can all affect the operating conditions of a jet aeration system.
Conclusion
The HTA Jet Aerator can provide stable wastewater aeration when operators follow the recommended procedures for storage, installation, commissioning, and daily operation. Correct positioning, clean piping, controlled air-water flow, and appropriate operating conditions are particularly important for maintaining aeration performance.
For installation, position the aeration arm 400–550 mm above the tank bottom, complete the piping connection in the recommended sequence, and conduct leak testing before normal operation. During commissioning, operate the system at the maximum design air flow rate and circulating water volume for one week, or at least three days, before formal performance evaluation.
Following these procedures helps operators reduce avoidable equipment problems and maintain reliable aeration performance throughout wastewater treatment operations.
If you are installing or upgrading an HTA Jet Aerator system, contact our wastewater treatment engineers for technical guidance on installation and system configuration. Get a free engineering consultation and receive a technical recommendation within 24 hours.
Last Updated: September 2, 2026
Source: Hetai HTA Jet Aerator Official Manual
