QJB5.5/4-2500/2-38/Low-Speed Flow Propeller Price
Dive Propulsion Device Quotation
Oxicell Reactor Flow Selector Quotation


Duwan Environmental Protection Co., Ltd.JBLow-speed Turbulators are suitable forA variety of water treatment processes and industrial operations require locations for uniform mixing of solid-liquid or solid-liquid-gas three-phase media. These are primarily composed of submersible motors, reducers, spiral propeller blades, seals, hand-cranked winches, installation systems, and electrical control devices.
QJBLow-Speed Flow Controller Model Description
QJB------Low-speed Thruster (Submersible Propeller)
1.5-----Motor PowerKW)
4-----Motor series
42-----Impeller Diametermm)
2-----Leaf count
1800-----Rated Revolutionsr/min)
S/P-----Material:SRepresent stainless steel,PRepresent Polyurethane
QJBApplications and Applicable Conditions of Low-Speed Flow Makers
Low-speed mixers are suitable for various water treatment processes and industrial applications where uniform mixing of solid-liquid or solid-liquid-gas三相 media is required to maintain a consistent reaction.
QJBLow-speed flow controllers can operate continuously under the following conditions:
1Medium temperature not exceeding40°C
2MediumPHValue in5-9
3Medium density does not exceed115KG/M^3
4Low-speed propeller can operate submerged for long periods, with a diving depth generally not exceeding...10Rice
Gearbox structure
380V Voltage
Tungsten carbide mechanical seal
NSK Bearings
QJBStructure and Performance Features of Low-Speed Turbulator
QJBLow-speed propellers are mainly composed of submersible motors, reducers, spiral propeller blades, seals, hand-cranked winch mechanisms, installation systems, and electrical control devices.
1Tightly structured, compact, and lightweight. Easy to operate and maintain, quick installation, and long service life.
2The blades feature self-cleaning capabilities, preventing debris entanglement and blockage.
3When used in conjunction with an aeration system, it can significantly reduce energy consumption, increase oxygenation levels, and effectively prevent sedimentation.
4、QJBMotor winding for a type low-speed impellerFGrade insulation, protection rating:IP68Selects a single-lubrication, maintenance-free imported bearing with oil chamber leakage detection and motor winding overheating protection, ensuring safer and more reliable motor operation.
5The mechanical seal's friction pair material is corrosion-resistant tungsten carbide, and all fasteners are made of stainless steel.
6Under specified conditions, the mean time to first failure is not less than10000Hourly life span, not less than15Year.
7The propeller blades of the diving propeller are made of elastic polyurethane or aluminum alloy, capable of withstanding variable loads, with thrust evenly distributed.ReasonableHydraulic design.


Duwan Environmental Protection Submersible Pump Flow Injector, with Direct Startup, featuring overload, short circuit, phase loss protection, and various protection functions such as pump body leakage, motor over-temperature, and leakage. It also boasts comprehensive status displays, single pump/multiple pumps control modes, multiple master/backup pump switching methods, and various startup options. Widely applicable for automatic control in various scenarios, including water supply and drainage, fire protection, sprinkler system pressure boosting, and HVAC hot and cold water circulation in industrial, agricultural production, and buildings.
High-quality stainless steel control cabinets with attractive and durable appearance, easy installation and operation, and reliable companions for all types of pumps.
Direct start dive propulsion unit features:
1Widely applicable: Suitable for various scenarios, including domestic water supply and drainage, fire protection, sprinkler systems, pressure boosting, air conditioning cooling cycles, industrial control pumps, and wastewater treatment, with corresponding models and specifications. Motor control power range:0.18~250KW。
2Superior Quality: Carefully selected international and domestic electrical components, along with sturdy standard cabinets, meticulously designed and expertly crafted.
3Versatile functions: From single control to five controls, with the flexibility to choose and combine primary and backup pumps, various startup methods, and a range of control forms. Automatic fault switching.
Two-year warranty
Offer guidance for installation and debugging




