QJB3/8-400/3-740S Submersible Agitator Variable Frequency Control

Duwan Environmental Protection Submersible Mixing Pump Installation Diagram

Motor Power: 3 kW

Impeller Speed: 740 RPM

Impeller Diameter: 400mm

Main unit in wooden case packaging

Duwan Environmental QJB3/8-400/3-740S SubmersibleAgitatorMachineRuns smoothly without vibration. All rotating parts (including the motor) should undergo dynamic and static balance tests during manufacturing.

Diving mixerMain material requirements

Propeller: Stainless Steel AISI304

Motor housing: Stainless steel 304

Axle Stainless Steel 431

Mechanical Seal: Corrosion-resistant Sintered Tungsten CarbideCorrosion-Resistant Sintered Tungsten Carbide

Fasteners: Stainless Steel AISI 304

Cable Sheath: Neoprene

O-ring: Nitrile rubber or fluororubber compound or fluororubber

DivingStirrer Bracket: Stainless Steel AISI 304

Guideway system: Stainless steel AISI 304

Chain Lifting Stainless Steel AISI 304

Lifting Device Boom: Stainless Steel AISI304

Chemical Anchor Bolts: Stainless Steel AISI304

Surface Corrosion Protection: Two-component epoxy resin coating, two layers of primer, each with a thicknessOver 1mm, with a surface paint thickness of over 1mm.

Diving AgitatorMatching stainless steelField control box

The equipment supplied should be accompanied by a field control box that is technologically equipped.FrontierProven safe and reliable in actual operation, it meets all design specifications and conforms to general electrical technical requirements.

Duwan Environmental provides a local control box with each set of submersible mixer.

Submersible mixer field control box requirements are as follows:

（1) Equipped with buttons and signal lights; all control boxes feature unified signal lights indicating red for stop, green for operation, yellow for fault, and blue for power.

（2) Purchase a conversion transformer for motor protection, to be ordered with the equipment.

（3) The start/stop button should have two sets of contacts, and the emergency stop button (with a mushroom head) should remain engaged when pressed.

（4) Terminals are of the wire terminal type.

（5) With cable connectors.

（6) Protection Level: IP65.

（7) Reserved PLC interface; each equipment requires control at both the on-site control cabinet and the central control room.

（8) A 3P-32A circuit breaker must be left within the on-site control line and properly wired for the owner's future maintenance of temporary power connections.

（9) Ventilation louvers should be provided on both sides of the control box, and a cooling fan should be installed at the bottom.

Submersible mixer accessories and materials

Two-year warranty period for spare parts with normal operationInventory List；Configuration parameters; flow field diagrams; selection reports; equipment size drawings; main equipment characteristics; performance guarantee letters, and other relevant materials.