Diaphragm pumps are indispensable in the demanding water and wastewater industry due to their distinct design and robust performance characteristics. Afterall, this sector presents unique challenges, from handling abrasive sludges and corrosive chemicals to maintaining consistent flow for precise dosing.

Fortunately, Ovell® Pump's diaphragm pump solutions are tailored to excel in these conditions, offering reliability, efficiency, and safety.

Understanding the Water and Wastewater Industry

The water and wastewater industry is a vital sector responsible for managing the entire water cycle to ensure public health, environmental protection, and economic stability. It encompasses two primary functions:

Water Supply (Potable Water): This involves the sourcing, treatment, and distribution of clean, safe drinking water to homes, businesses, and industrial facilities. This process typically includes drawing water from rivers, lakes, or groundwater; purifying it through various physical, chemical, and biological processes (like filtration, disinfection, and chemical addition); and then delivering it through vast networks of pipes and pumping stations.

Wastewater Management: This involves the collection, treatment, and safe disposal or reuse of used water (also known as sewage or effluent) generated from residential, commercial, and industrial activities. Wastewater treatment plants remove contaminants through multiple stages (primary, secondary, and often tertiary treatment) before the treated water is discharged back into the environment or repurposed for non-potable uses like irrigation. Sludge generated during this process also requires careful management and disposal.

In essence, the industry acts as a crucial guardian of water resources, transforming raw water into safe drinking water and ensuring that wastewater is treated to prevent pollution and protect ecosystems.

Building on this understanding of the critical water and wastewater sector, it becomes clear why specialised solutions are paramount. This is precisely where Ovell® Pump excels, one of the industry’s leading diaphragm pump manufacturers, providing advanced diaphragm pump technology designed to meet and surpass the rigorous demands of this industry.

Key Features of Ovell® Pump's Diaphragm Pumps for Water & Wastewater

Beyond the fundamental understanding of diaphragm pumps, it's their specific attributes that truly set them apart. Let's explore the key features of Ovell Pump's diaphragm pumps that make them exceptionally suited for the most demanding fluid transfer challenges.

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• Exceptional Solids Handling Capability: A primary challenge in wastewater treatment is the presence of suspended solids, grit, and viscous sludges. Ovell® air diaphragm pumps are specifically designed with a no-close-fitting, seal-less mechanism that allows them to effectively pump fluids containing ahigh percentage of solids without clogging or causing wear to internal components. This robust design ensures continuous operation even with highly abrasive or dirty media.

•  Superior Chemical and Corrosion Resistance: Water and wastewater treatment processes frequently involve harsh chemicals, including acids, alkalis, chlorine, and various coagulants. Our chemical diaphragm pumps are constructed with a wide selection of chemically resistant materials for their wetted parts, such as PTFE (Polytetrafluoroethylene or Teflon), Polypropylene, Polyvinylidene Fluoride or PVDF, Nitrile rubber, and Santoprene. This material versatility ensures the longevity and integrity of a chemical diaphragm pump despite long-term exposure to aggressive or corrosive fluids, preventing leaks and contamination.

• ·Self-Priming and Dry-Running Capabilities: Unlike many other pump types, Ovell's air operated diaphragm pumps possess excellent self-priming capabilities, meaning they can draw fluid into the pump from a dry suction line without external assistance. This feature is particularly beneficial in applications where fluid levels fluctuate or where the diaphragm vacuum pump is situated above the fluid source. Crucially, these pumps can also run dry for extended periods without sustaining damage or overheating, a common issue for centrifugal pumps, thus enhancing operational flexibility and reducing the risk of catastrophic failure.

• No Mechanical Seals, Eliminating Leakage Points: Another significant advantage of our industrial diaphragm pumps is their seal-less design. The diaphragm air pump acts as a flexible barrier, completely isolating the pumped fluid from the pump's mechanical components and the external environment. This inherently leak-free operation is critical for preventing environmental contamination, ensuring operator safety when handling hazardous substances, and significantly reducing maintenance costs associated with seal wear and replacement.

•  Consistent and Controllable Flow Rates: Ovell's diaphragm pumps, particularly electric diaphragm pumps (EODD), offer precise control over flow rates. Their positive displacement nature ensures a consistent and pulsate-free flow, whichis vital for accurate chemical dosing, pH adjustment, and the controlled transfer of treatment agents. Air-operated double diaphragm pumps (AODD) also allow for easyflow adjustment by simply regulating the air inlet pressure.

•  Energy Efficiency for Viscous Fluids: While general energy consumption varies by type (AODD vs. EODD), diaphragm pumps, especially electric variants, are noted for their energy efficiency, particularly when moving thick sludge and highly viscous, solid-laden fluids. Their design ensures effective displacement of fluid with minimal energy wastage, contributing to lower operational costs overthe long term.

•  Robust Construction and Low Maintenance: The simple, yet durable, construction of Ovell's 2” inch electric diaphragm pumps, with fewer moving parts in contact with the fluid, translates to exceptional reliability and extended service intervals. This robust design minimises wear and tear, leading to significantly lower maintenance requirements compared to other pump technologies that rely on impellers or complex sealing systems. Their design simplifies any necessary servicing, reducing downtime and ensuring continuous operation.

•  Explosion-Proof Optionsfor Hazardous Environments: In certain wastewater treatment facilities or industrial settings where flammable gases or hazardous vapors might be present, safety is paramount. Ovell's pneumatic diaphragm pumps are intrinsically safe and considered explosion-proof, as they do not require electricity and therefore eliminate the risk of electrical sparks, making them ideal for use in potentially volatile areas.

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Benefits in Water and Wastewater Applications

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Beyond their impressive specifications, the true value of Ovell® Pump's double diaphragm pumps is best seen in their tangible impact within the water and wastewater industry.

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• Reliable Sludge and Slurry Transfer: From primary sludge and waste activated sludge (WAS) to return activated sludge (RAS) and thickened sludge, Ovell pumps handle these difficult, often abrasive and highly dense, materials with consistent efficiency, preventing pipeline blockages and system downtime.

• Precise Chemical Dosing and Injection: Their ability to deliver accurate and consistent flow rates makes them ideal for critical chemical dosing applications, such as injecting coagulants, disinfectants (e.g., chlorine), pH adjusters, and other treatment chemicals into the water stream, ensuring optimal treatment efficacy and compliance.

• Effective Dewatering and Drainage: Ovell’s pneumatic diaphragm pump assist in dewatering processes by efficiently removing excess water from sludge, facilitating its drying and subsequent disposal. They are also used for sump transfer and general drainage tasks within treatment plants.

• Safe Handling of Corrosive Effluents: The chemical resistance and leak-free design are crucial for transferring treated effluent or raw sewage that may still contain corrosive elements, protecting both equipment and the environment.

• Versatility Across Treatment Stages: Ovell's pumps are adaptable for use across various stages of the water and wastewater treatment process, from raw water intake and preliminary treatment to advanced filtration, disinfection, and sludge management.

• Reduced Operational Costs: The combination of energy efficiency (especially for viscous fluids),low maintenance requirements, and prolonged operational life due to their robust design and material compatibility contributes significantly lowering overall operational expenses for water and wastewater treatment plants.

• Environmental Protection and Safety: The leak-free design and ability to handle hazardous materials contained within the pump mechanism directly contribute to environmental protection by preventing spills and contamination, while also enhancing workplace safety for operators.

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Applications of Ovell® Pump's Diaphragm Pumps

Ovell® Pump's diaphragm pumps are incredibly versatile, offering efficient solutions across a wide range of industries. Their unique design features translate directly into practical benefits for numerous applications such as:

• Dewatering: Ovell® diaphragm pumps are highly effective in dewatering applications, efficiently removing excess water from sludges or process streams. Their robust design handles the concentrated solids and dense consistency of dewatered materials, facilitating easier disposal or further processing without clogging.

• Wastewater Systems: As a core application, Ovell® pumps are crucial throughout various wastewater systems. Their ability to handle abrasive solids, corrosive chemicals, and fluctuating fluid levels ensures reliable and continuous operation in challenging environments, from raw sewage intake to treated effluent transfer.

• ·Rehabilitation Systems: In infrastructure or environmental rehabilitation systems, Ovell® pumps are ideal for managing slurries, contaminated water, or viscous recovery fluids. Their self-priming and solids-handling capabilities make them suitable for transferring materials generated during cleanup, restoration, or construction phases.

• Metal Fabrication: Within metal fabrication, Ovell® diaphragm pumps expertly manage a variety of fluids, including cutting fluids, lubricants, industrial coolants, and wastewater containing metal fines or chemical residues from washing and finishing processes. Their chemical resistance and ability to pump abrasive particles ensure consistent performance.

• Potable Water Systems: For potable water systems, Ovell® pumps are employed for precise chemical dosing (e.g., chlorine, fluoride, pH adjusters) due to their consistent and controllable flow rates. Their high purity materials ensure no contamination, making them suitable for handling clean water treatment chemicals.

• Water-Treatment Supply: Ovell® pumps are essential in the water-treatment supply chain, facilitating the transfer and accurate injection of various treatment chemicals. Their superior chemical resistance ensures the safe and reliable handling of acids, alkalis, and coagulants from storage to the treatment process.

• Irrigation: While not a primary focus, in certain irrigation setups where water sources may contain sediment, or where precise dosing of liquid fertiliser /nutrients is required, Ovell pumps can provide reliable transfer and accurate control, particularly in agricultural or specialized landscaping contexts.

• Sump Transfer: Ovell® pumps are widely used for sump transfer in industrial and commercial settings. They efficiently move collected wastewater, runoff, or process liquids from sumps, often containing various suspended solids, debris, or chemicals, to a drainage system or further treatment, thanks to their robust solids handling.

• Filtration: In filtration processes, Ovell® diaphragm pumps play a key role in feeding fluid to filter presses, membrane filtration units, or other separation equipment. Their ability to handle viscous slurries, high-pressure demands (in some configurations), and return concentrated filter cake ensures efficient and continuous filtration cycles.

In summary, Ovell® Pump's diaphragm pumps embody the pinnacle of fluid transfer technology for the most demanding industries. Their specialised features translate directly into tangible benefits, ensuring reliable fluid transfer, exceptional chemical compatibility, superior operational efficiency, and enhanced safety across a multitude of critical applications.

To learn more about how Ovell® Pump's diaphragm solutions can optimise your operations and address your specific fluid transfer challenges, contact us at +61 431 085666, and our expert team will be more than happy to help.

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