QXB Type Centrifugal Submersible Aerator

Jiangsu Duan Environmental Protection Business Scope: Research, development, production, sales, installation, service, and maintenance of pumps, complete water treatment equipment, environmental protection equipment, mechanical parts, electrical control equipment, valves, high and low voltage switchgear; technical consulting services for water treatment equipment; water supply and drainage engineering design; environmental protection engineering construction; sales of chemical products; import and export business of various commodities and technologies. (Projects subject to approval by law must be approved by relevant departments before business activities can be carried out.)

Purchase Notes:

1. Source of Goods

Duan Environmental Protection Equipment (Jiangsu) Co., Ltd. factory direct sales, all prices are factory prices, actual prices are subject to parameters!

2. About the Brand

Jiangsu Duan Environmental Protection is a manufacturer dedicated to providing global sewage treatment equipment. Nanjing Duan Water Treatment Equipment Co., Ltd. relies on strong technology, advanced management methods, and a spirit of continuous innovation to provide strong guarantees for product development, design, production, quality control, and rapid service. We are constantly striving for the human environment and water resources...

3. About Materials

Available in 304 stainless steel and carbon steel, depending on customer needs. Generally, 304 stainless steel is recommended for stronger corrosiveness.

4. About Customer Service

Duan Environmental Protection Equipment (Jiangsu) Co., Ltd. 24-hour after-sales service hotline: 13813381829

Note: If you encounter a busy line or no answer, don’t worry, we will proactively call you back.

5. About After-Sales

All equipment comes with a one-year warranty. The warranty period is 12 months from the date of acceptance of the goods or 15 months from the date of factory shipment, whichever comes first.

6. About Shipping

Unified distribution by freight logistics, transported by truck. If door-to-door delivery is required, please specify when ordering!

QXB Type Submersible Centrifugal Aerator Product Use:  

Centrifugal Aerator Use The QXB type centrifugal submersible aerator is used in sewage treatment plant aeration tanks and aeration grit chambers for oxygenating and mixing mixed liquor, as well as for biochemical treatment of sewage or oxygenation in aquaculture ponds.

How to Select a Submersible Centrifugal Aerator:

It is recommended to consider factors such as liquid delivery volume, head, liquid properties, pipeline layout, and operating conditions.

1. Flow rate is one of the important performance data for selecting a centrifugal aerator, as it directly relates to the production and delivery capacity of the entire system. If the design process can calculate the normal, minimum, and maximum flow rates for the centrifugal aerator, the selection should be based on the maximum flow rate, while also considering the normal flow rate. In the absence of a maximum flow rate, 1.1 times the normal flow rate is usually taken as the maximum flow rate.    

2. Head is another important performance data for selecting a centrifugal aerator. Generally, a head with a 5%–10% margin should be used for selection.   

3. Liquid properties include the name of the liquid medium, physical properties, chemical properties, and other characteristics. Physical properties include temperature °C, density d, viscosity u, diameter of solid particles in the medium, and gas content, which relate to the system head, calculation of effective NPSH, and selection of the appropriate pump type. Chemical properties mainly refer to the chemical corrosiveness and toxicity of the liquid medium, which are important bases for selecting pump materials and shaft seal types.    

4. Pipeline layout conditions refer to data such as liquid delivery height, delivery distance, delivery direction, the lowest liquid level on the suction side, and the liquid level on the discharge side, as well as pipeline specifications, length, materials, pipe fitting specifications, and quantity, to calculate the system head and verify NPSH.   

5. Operating conditions include many factors, such as the operating temperature T of the liquid, saturated vapor pressure P, suction side pressure PS, discharge side container pressure PZ, altitude, ambient temperature, whether the operation is intermittent or continuous, and whether the pump position is fixed or movable. 

Duan Environmental Protection Equipment (Jiangsu) Co., Ltd. After-Sales Explanation:

1. Logistics and Freight Explanation

Submersible sewage pumps, submersible mixers, etc., are heavy goods. For Jiangsu, Zhejiang, and Shanghai, products under 50KG can be shipped by express delivery; products over 50KG must be shipped by logistics. Comprehensive protectors, leakage protectors, and thermal protectors are delivered door-to-door by express.

We cooperate with dozens of reputable logistics companies and will select the fastest and most cost-effective logistics for you.

Freight can be prepaid or paid upon arrival, and this will be clarified before quotation.

2. Online Ordering

Our company strongly develops online business. You are welcome to place orders online, which provides dual protection: both contract constraints and payment confirmation guarantees.

3. Maintenance and Care

All our products come with a one-year warranty. For quality issues within 3 months, the seller bears the round-trip repair freight; for quality issues within one year, both parties bear half of the freight each. Please note. If, after inspection, it is not a quality issue, the buyer needs to pay the repair cost and round-trip freight. For replaced parts, we promise to charge only the cost price. We provide lifelong maintenance.

4. Taxes

We are general taxpayers and can issue 13% VAT invoices as required by the contract. Invoices will be express delivered to customers before the 25th of each month. Please rest assured.

Jiangsu Duan Environmental Protection Submersible Aerators come in various models:

QXB0.75KW  QXB1.5KW QXB2.2KW  QXB3.0KW QXB4.0KW  QXB5.5KW 

QXB7.5KW  QXB10KW QXB11KW  QXB15KW QXB18.5KW  QXB22KW 

Or customized according to customer requirements.

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