Duwan Environmental Pump-Air Diffuser QXB5.5-100, QXB7.5-100

Duane Submersible Centrifugal AeratorStructure

Jiangsu Du'an Environmental ProtectionQXB Centrifugal Aeration Pump for Water ExtractionIt is a type of environmental protection equipment, widely used and applicable in many situations, particularly in wastewater treatment plants and some slaughterhouse effluent treatment facilities.

Diving AeratorTheStructural composition：

1The main reduction unit consists of a main variable frequency speed motor, an incremental encoder, and a main reducer. Upon motor start-up, the speed is reduced and the torque is increased through the main reducer. The speed is then adjusted by the variable frequency speed motor equipped with an incremental encoder, enabling various precise rotational speeds to be output, catering to the process requirements of the aeration machine. The reducer gears are made from low-carbon high-strength alloy materials, processed through carburizing, quenching, and grinding, significantly enhancing the bearing capacity of the reducer.
2Hoisting Mechanism: includes hoisting reducer, encoder, trapezoidal screw.KKAlloy nuts, bearing mounts, bearing bushes, connection methods, and a number of bearings. The lift mechanism with an encoder allows for precise adjustment of the lifting stroke and speed.
3Output Institution: Internal spline shaft(Coupled to the main reducer output gear)External spline shaft(Associated with the main reducer output gear)Output mechanisms are composed of spline shafts, couplings, drive shafts, etc. The spline shafts are made of high-strength medium carbon alloy treated for quenching and tempering. The spline shafts are axially sliding connected, and while transferring torque, the outer spline shaft can also achieve vertical lifting and lowering.

Each submersible centrifugal aeration unit undergoes performance testing after assembly to ensure the overall performance of the unit meets relevant standards, with a fault-free operation time of no less than8000Hours, the design service life of the unit is not less than15Year.

Product Technical Parameters Requirements:

QXBCentrifugal Submersible AeratorMachine Technical Description:

Technical Requirements：

1 Submersible centrifugal aeration machines are composed of submersible motors, intake pipes, mixing chambers, and aeration disks, etc.

2 Submersible centrifugal aeration pumps can operate normally within the specified range, without cavitation occurring, and with operating noise less than70Decibels, operates smoothly, and the motor has ample rated power.

3 All pressure parts of the submersible centrifugal aeration machine undergo air pressure testing, with the test pressure being equal to its design pressure.2Twice, but not less than0.2Mpa, spanning5minNo leakage occurs.

4 Submersible centrifugal aeration pumps are assembled and then,0.2MpaPressure test, duration5minNo leakage occurs.

5 Submerged centrifugal aeration machine coated with epoxy resin anti-corrosion paint, coating thickness greater than300μmThe surface is smooth and free of sand holes and cracks. The overflow components are coated with epoxy resin anti-corrosion paint.

6Submersible centrifugal aeration impeller, rotor dynamic balancing test, balancing accuracy:G6.3Grade

7The stainless steel label is securely fastened in a prominent position on each submersible centrifugal aeration unit, featuring embossed numeric symbols.

8Each submersible centrifugal aeration machine features lifting lugs positioned near the center of gravity on the top cover, ensuring they are sturdy and reliable.

Duwan Environmental Protection Equipment (Jiangsu) Co., Ltd. After-Sales Instructions:

1Logistics and Freight Information

Submersible sewage pumps, submersible mixers, etc., are considered heavy items; express delivery is available in Jiangsu, Zhejiang, and Shanghai.50KGWithin the product range, exceeding50KGAll require logistics. Comprehensive protector, leak protector, and thermal protector delivered to your doorstep via express shipping.

We collaborate with dozens of reputable logistics partners, ensuring we select the fastest and most cost-effective options for you.

We can prepay or collect shipping costs; this will be clarified before quoting.

 2Place orders offline

We are aggressively expanding our online business. Welcome to place your order online, which offers you dual protection—both contractually binding and payment confirmation secured.

 3Maintenance and care.

All products of our company are covered by a quality guarantee.1Year;3If quality issues arise within the month, the seller is responsible for the round-trip shipping costs for repairs.1Quality issues arising within the year will incur 50% shipping costs for each party. Please be advised. If, after inspection, it's not a quality issue, the buyer is responsible for repair costs and round-trip shipping. We promise to charge only the cost for the replaced parts. We offer lifetime maintenance.

 4Taxes

We are a general taxpayer, and can issue invoices as per the contract requirements.13%Value-Added Tax (VAT), every month25Prior to shipment number, we will definitely send the express to the customer. Please rest assured.

Jiangsu Du'an Environmental Protection Submerged Aeration Pumps 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 custom-made according to customer requirements.