Duwan QJB-W4/12, JB-W5/12, QJB-W5/12 Sludge Recirculation Pump Price
Material: 304 Stainless Steel
Voltage: 380V
Motor: Submersible Motor
Usage Instructions:
Duwan Environmental ProtectionQJB-W4/12Sludge recirculation pumps are specialized equipment for mixed liquor recirculation and denitrification in two-stage wastewater treatment plants. They can also be used in ground drainage, irrigation, and wastewater treatment processes requiring low head and high flow rates for recirculation.
Product Features:
Compact structure, easy installation, simple operation, easy maintenance, noiseless, can be installed anywhere.
Application Scope:
Submersible recirculation pumps can operate continuously under the following conditions:
Altitude not exceeding1000m；
Medium temperature not exceeding40OC；
MediumPHValue in5-9Between;
Liquid density does not exceed1150kg/m3；
Extended dive operations, dive depths typically do not exceed20m；
Structure and Working Principle:
Submersible return pumps consist of a impeller, submersible motor, flow guide housing, wall penetration pipe, flap gate, installation lifting rod, lifting cable, underwater cable, lifting frame, hand-cranked lifting device, angle steering mechanism, and local control cabinet.
The submersible return pump operates smoothly with no jamming, stalling, or vibration.
Submersible recirculation pump undergoes a sealed air pressure test; test pressure is0.3MPa, spanning5No leakage within minutes.
Submersible recirculating pumps utilize a dual mechanical seal structure and lip seal to form the dynamic sealing system, with mechanical seals ensuring...25000Operates reliably within hours without replacement.
Submersible recirculation pumps can continuously operate under both full immersion and when the submersible motor is exposed to the liquid surface, while ensuring smooth operation upon startup even after intermittent operation or long-term shutdown.
Submersible return pump lead cable utilizesGB5013.2Please provide the Chinese content that needs to be translated into American English.YZWType A rubber sleeve soft cable or equivalent performance cable, standard configuration length per unit10mThe cable sealing heads are treated with special processes to prevent the cable sheath from being damaged and water from渗入the motor.
The submersible recirculation pump features a smooth, unblemished surface with no signs of scratches, dents, or cracks.
The oil chamber of the submersible recirculating pump has ample space to accommodate expansion due to temperature differences and is equipped with a seal leakage protection device.
Submersible recirculation pump cable with dual-color wire (yellow)/Green: Specified as ground wire, connection is reliable. Ground marking is prominent and not easily worn off during use.
Submersible recirculation pump impeller and rotor are tested for dynamic balance, with balancing accuracy ofG6.3；
The submersible recirculation pump is equipped with thermal protection switches within the stator winding and at the upper and lower bearing positions, as well as a sealed leakage protection device within the stator cavity.
The installation rod of the submersible recirculation pump ensures the equipment can rotate freely, ascend and descend, and adjust various angles, making it unnecessary to empty the pool for the lifting and installation of the agitator.
Service Life: The average operating time of the submersible return pump under specified conditions before the first failure is not less than10000Hour
Service life of the complete unit is not less than20Year.
Duwan Environmental Protection Equipment (Jiangsu) Co., Ltd.QJB-W Sludge Recirculation Pump After-Sales Service
After-sales service is crucial for the development of our business and establishing our company's reputation, and it is also a significant step for a company's progress. To the users, it guarantees product quality and offers peace of mind.
1Establish a customer-first principle; all our products meet stringent corporate and national machinery department standards.
2Provide spare parts, accessories, installation, debugging, maintenance services, and technical training for customers' personnel as per customer requirements or agreements.
3Large-scale engineering projects will be organized for production, testing, and inspection according to the requirements of the bidding documents, and will cooperate with the customer's on-site acceptance.
4．Comply strictly withIS09001Procurement of standard organizational raw materials and components, as well as production and inspection of products.
5Under normal storage, transportation, maintenance, and usage conditions of the customer, we offer a three-year warranty service (warranty, return, and exchange) in case the product cannot be used normally due to manufacturing quality issues.
6Provide necessary technical documents and product certification for factory-produced goods.
7.During the warranty period, should the equipment fail to meet the specified technical parameters due to inaccuracies in the equipment or technical documentation provided by us, the user should immediately notify us. Upon receiving written or verbal notification,24Within hours exchange/Repair defective equipment or technical documents.
8.In the event of damage or abnormal operation due to improper use by the customer or outside the warranty period, our company offers lifelong repair services for the product.
