China PP Plastic Air-Operated Double Diaphragm Pump Manufacturer, Supplier, Factory

Shanghai Crowns Pump Manufacturing Co., Ltd. excels in designing, producing, and selling various water pumps especially Vertical Multistage Centrifugal Pump CDL/CDLF. Our Vertical Multistage Centrifugal Pump CDL/CDLF meets ISO standards, ensuring high performance and reliability. This series offers robust engineering, making it an ideal choice for efficient and reliable water pump solutions. These pumps are suitable for a variety of applications including industrial and urban water supply, agricultural irrigation.

The WQ Submersible Sewage Pump is designed for the efficient transfer of wastewater and sewage from buildings, industrial sites, and other areas prone to flooding. With a fully submersible design, this pump operates directly in the fluid it is tasked to move, making it ideal for applications where space is limited or pumps must be submerged. It features corrosion-resistant materials and reliable sealing, ensuring long-term durability and uninterrupted performance in harsh environments.

Shanghai Crowns Pump Manufacturing Co., Ltd. specializes in meticulously creating efficient and high-quality pump solutions for a wide range of industries，especially in the multistage pump. We specialize in the production of multistage pumps, offering an integrated production line that covers casting, manufacturing, processing, and inspection. It offers outstanding reliability and performance in various scenarios, including industrial processing, urban water supply systems, and agricultural irrigation projects. Engineered with versatility in mind, these multistage pumps are well - equipped to handle non - corrosive and slightly corrosive liquids with ease.

The Cast Iron Air-Operated Double Diaphragm (AODD) Pump is a workhorse built for rugged environments. Its robust cast iron construction isn’t just durable—it’s practically indestructible against abrasive slurries, high-viscosity grouts, and gritty sludge. I’ve seen it thrive in mining operations, moving ore-laden slurries that would grind other pumps to a halt. The double diaphragm design ensures pulseless flow, even with sticky materials like concrete or wastewater sludge, preventing clogs and wear. In construction and wastewater treatment, reliability is key. This pump delivers—no frequent maintenance, no downtime. Its heavy-duty build shrugs off the daily grind of tough materials, making it a go-to for industries where “good enough” isn’t an option. Whether you’re tackling ore processing, grout mixing, or effluent management, this pump handles the mess with consistency. No frills, just brute force and dependability.

The IHG Stainless Steel Vertical Pipeline Pump by Shanghai Crowns Pump Manufacturing Co., Ltd. is engineered to meet high-performance and durability standards, making it ideal for handling corrosive liquids in diverse industrial settings. With its energy-efficient design and compliance with ISO standards, the IHG series pump is well-suited for applications that demand both reliability and ease of maintenance. This pump can replace older models like the SG series, and its versatile temperature tolerance from -20°C to 120°C makes it suitable for a variety of fluids across multiple sectors, including chemical processing and water supply.

Shanghai Crowns Pump Manufacturing Co., Ltd. brings decades of pump engineering expertise to the design and production of premium solutions like our Cast Iron Vertical Pipeline Pump. This robust model, engineered to exceed ISO standards, stands out as a top choice for modernizing systems, replacing traditional SG series and IR hot water circulating pumps with its advanced air-cooling technology. Specifically designed to protect motors and bearings from overheating—critical in high-demand environments—the Cast Iron Vertical Pipeline Pump combines a space-saving vertical configuration with hydraulic efficiency, ideal for tight mechanical rooms in commercial buildings, industrial complexes, and heating systems. Crafted from durable cast iron, this pump offers exceptional corrosion resistance and handles water temperatures up to 120°C, ensuring reliable performance in hot water applications and harsh industrial conditions. Its built-in air-cooling mechanism reduces maintenance needs and downtime by up to 20% compared to legacy models, while meeting international standards like ISO 9001. Whether used in high-rise heating loops, manufacturing pipelines, or district networks, the Cast Iron Vertical Pipeline Pump delivers consistent pressure and efficiency, making it a trusted upgrade for engineers prioritizing durability, innovation, and cost-effectiveness.