Sewage Centrifugal Mixed Flow Pump

ZA ZAO Series petrochemical process pumps are designed and manufactured in accordance with API 610 (8th edition).

Scope of application
For transporting clean or slightly granular, cold or hot, chemically neutral or corrosive liquids.
Main use
It is used in oil refineries, petrochemical industry, coal processing and cryogenic engineering.
It is used in the chemical industry, the fiber industry and the general processing industry, especially in the paper and pulp industry and the sugar industry.
It is used in the water industry, especially in desalination plants.
Used in heating and air conditioning systems.
Used in fossils and nuclear power plants.
Used in protection projects.
It is used in the Marine and Marine industries.

Operational data
Size: 25-400mm
Flow rate (Q) : up to 2600 m/h
Head (H) : up to 250m
Operating pressure (P) : up to 2.5Mpa
Operating temperature (t) : -20ºC +180ºC
Center support line temperature: -20ºC~+450ºC

Sewage Centrifugal Mixed Flow Pump: Materials Used

Sewage Centrifugal Mixed Flow Pump: Materials Used

The Sewage Centrifugal Mixed Flow Pump is designed to handle a wide range of sewage and wastewater, so the materials used in its construction are critical for ensuring performance, durability, and resistance to corrosion and abrasion. The pump's components are made from high-quality materials that are specifically selected for their ability to withstand the harsh conditions often encountered in sewage and wastewater treatment processes.

Common Materials Used

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• Stainless Steel: Stainless steel is commonly used for components like the pump casing, impeller, and shaft, as it offers excellent resistance to corrosion and erosion, especially in aggressive wastewater environments.
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• Cast Iron: Cast iron is frequently used for the pump casing and other structural parts. It is durable, cost-effective, and resistant to wear under moderate conditions. It is typically used for larger pumps with less aggressive sewage environments.
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• Ductile Iron: Ductile iron is stronger than cast iron and offers better corrosion resistance. It is often used for parts that require additional strength, such as pump shafts or impellers.
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• Bronze: In some high-performance applications, especially in pumps handling brine or saltwater, bronze alloys are used due to their high resistance to corrosion and excellent strength.
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• Polyurethane or Rubber Coatings: For parts exposed to abrasive fluids, such as the impeller or wear rings, polyurethane or rubber coatings may be applied. These coatings provide a barrier against abrasion and extend the lifespan of these components.
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• Carbon Steel: Carbon steel may be used for less critical components or when the pump will handle less corrosive materials. It is typically coated to prevent rust and corrosion.

Why These Materials Are Used

• Corrosion Resistance: Components exposed to sewage and wastewater must be resistant to corrosion caused by chemicals, salts, and other corrosive substances. Stainless steel, cast iron, and ductile iron provide high resistance to corrosion.
• Wear Resistance: Sewage often contains solid particles that can cause abrasion over time. Materials like stainless steel, polyurethane, and rubber are used for parts that experience high wear to prolong the pump's service life.
• Strength and Durability: Pumps need to withstand the stresses of continuous operation and heavy-duty use. Ductile iron and carbon steel are used for their high strength, which allows the pump to handle high pressure and heavy fluid flows without damage.
• Cost Efficiency: Cast iron and carbon steel are cost-effective materials that provide a balance of strength and resistance, making them suitable for most standard sewage pump applications without compromising performance.

Conclusion

The materials used in the construction of Sewage Centrifugal Mixed Flow Pumps are carefully chosen to ensure that the pump operates efficiently, is resistant to corrosion and wear, and has a long service life in demanding sewage and wastewater environments. Whether it's for municipal wastewater treatment or industrial sewage pumping, the right materials ensure that the pump will perform reliably under tough conditions.

We offer integrated solutions from embryo casting to complete machine with short lead time and controlled quality.

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