China Cast Iron Air-Operated Double Diaphragm Pump Manufacturer, Supplier, Factory

Shanghai Crowns Pump Manufacturing Co., Ltd. excels in designing, producing, and selling various water pumps. Our ZW Self Priming Sewage Pump meets ISO standards, ensuring high performance and reliability. ZW series pump are horizontal single stage single suction self priming centrifugal pumps.

Shanghai Crowns Pump Manufacturing Co., Ltd. introduces the Close Coupled Type Diesel Fire Pump, a robust solution blending decades of pump engineering expertise with innovative design for critical fire protection. This high-performance pump is engineered to deliver efficient emergency water supply in compact footprints, ideal for industrial, commercial, and municipal environments where space is limited but reliability is non-negotiable. Featuring a direct-coupled diesel engine and pump, the design eliminates external alignment requirements, reduces vibration, and enhances operational stability—key advantages for rapid deployment during emergencies. Its compact structure saves up to 40% installation space compared to traditional models, making it suitable for high-rises, warehouses, and retrofitted municipal systems. The heavy-duty diesel engine ensures autonomous operation during power outages, guaranteeing continuous water flow for fire suppression, while corrosion-resistant materials and simplified maintenance processes extend service life and reduce downtime. Perfect for industrial facilities, commercial complexes, and urban fire networks, this pump meets global safety standards and delivers consistent performance across diverse applications. Trust Shanghai Crowns for a fire protection solution that combines space efficiency, rugged durability, and dependable emergency response—engineered to safeguard what matters most.

The Aluminum Alloy Air-Operated Diaphragm Pump (AODD) is built for everyday reliability in jobs that need both mobility and strength. Its lightweight aluminum body makes it easy to move, install, and maintain—perfect for workshops or tight spaces. Often found in automotive shops, light factories, and general fluid handling, it handles oils, coolants, and mild chemicals with ease. Powered by air, it runs safely in areas where sparks or electricity could pose risks.

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.

With decades of expertise in pump manufacturing, Shanghai Crowns Pump Manufacturing Co., Ltd. offers Fire Pump System with Electric Diesel and Jockey Pump. Featuring integrated Electric, Diesel, and Jockey pumps, these systems ensure reliable water pressure for fire protection needs like sprinklers, hydrants, and hose reels. Our fire pump systems are certified by China's CCCF, which is like the US NFPA 20 standards, and built to deliver top-level operational safety and efficiency.

Shanghai Crowns Pump Manufacturing Co., Ltd. has over 20 years of experience in pump manufacturing. The TD Pipeline Circulating Pump fully demonstrate the company's commitment to quality. Combining practical design with stable performance, the TD Series is a common sight in industrial, municipal, and HVAC systems, ensuring smooth operation regardless of operating conditions.