Duwan 700ZQB-70 Submersible Axial Flow Pump, Well Casing Suspended Mounting

DuwanZQBSubmersible Axial Flow Pump Performance and Main Technical Parameters

Work Conditions:

Medium Conditions

Medium Temperature:0℃～30℃

Medium pH Level:PH：6-9

Environmental Conditions:

Ambient Temperature:3.2～36.4℃

Others

Each pump must be equipped with a pump cover not less than10Chain (meets usage requirements), the load capacity should be equal to the total weight of the pump2All sludge pumps and mud pumps must be made of wear-resistant materials.

Other operating points of the pump should be within the pump's performance curve range.

Duwan ZQBMain Material of Submersible Axial Flow Pump:

Cable:       PNCT，10MIL-Spec Submersible Cables

Impeller:          GGG50Cast iron or above grade

Pump housing:          GG25Cast iron or above grade

Motor Housing:         GG25Cast iron or above grade material

Axle          Stainless SteelAISI420

Mechanical Seal         Silicon carbide/Silicon Carbide or Tungsten Carbide/Tungsten carbide

Bearings: UsedNSKOr equivalent

Fasteners:         Stainless SteelAISI304

Submersible Pump Guide Rail: Stainless SteelAISI304

Submersible Pump Lift Chain: Stainless SteelAISI304

Reliability and durability of the equipment

1Complete Machine: Expected service life of the complete machine25YearPlease provide the Chinese content you would like translated into American English., Mean Time Between Failures (MTBF):20000Over 1 hour

2The equipment is inspected annually and has a service life of not less than10 Year

3Appliances: Not less than3Year

4、Protective Coating:Please provide the Chinese content you would like translated into American English.3Over one year

5Warranty Period: Starting from the completion and acceptance of the wastewater treatment plant's联动调试.1Year

Corrosion Protection Instructions for Submersible Axial Flow Pumps

1 Castings rust removalSa2.5Standard.

2 Surface acid pickling and passivation are performed after the stainless steel components are processed.

3 Non-stainless steel parts coated with zinc-rich primer, mica ferric oxide intermediate coat, epoxy topcoat; total film thickness not less than waterline.200μmBelow water level250μmRust removalSa2.5Standard

4 Prior to packaging, machine-processing surfaces are inspected.GB4879Standard requirements include anti-corrosion treatment.

5 During transportation and installation, if the coating is damaged, it must be repaired strictly according to the painting process, ensuring the quality level is not lower than that of the original coating.

6 Carbon steel parts coated with zinc-rich primer, mica iron oxide intermediate coating, epoxy topcoat; total film thickness not less than200μmAfter processing the stainless steel components, surface passivation treatment is conducted.

Submersible axial flow pump and accessories pre-shipment documents:

Submit overall layout drawing of pump assembly, pump structural assembly drawing, detailed technical specifications, and characteristic curves.(Flow, Lift, Efficiency, Power)Assembly structure, component materials, protective coating details, as well as the physical dimensions and space requirements for installation and maintenance operations of the equipment.

The equipment foundation must meet the civil engineering reserved conditions.

Provide installation size drawings and space requirements for maintenance and operation.

Detailed specifications of the equipment's performance.

Submersible Axial Flow Pump Flow Field Diagram

Offer samples along with a Chinese version of the operation and maintenance manual, including detailed descriptions of installation and operation methods with installation instructions.

Wiring diagram and control principle diagram of the electrical control box.