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.
