China Fluorine-Lined Air-Operated Double Diaphragm Pump Manufacturer, Supplier, Factory

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.

With over 20 years of manufacturing expertise, Shanghai Crowns Pump Manufacturing Co., Ltd. presents the CQ series magnetic drive pump (referred to as magnetic pump), a new type of centrifugal pump that applies the working principle of permanent magnet couplings. Absorbing advanced technologies, materials, and processes from domestic and international horizontal magnetic pump production, this pump successfully solves the technical challenges of easy damage to components like isolation sleeves and impellers in domestic magnetic pumps, achieving more refined performance. It features rational design, advanced craftsmanship, full sealing, no leakage, and corrosion resistance.

Shanghai Crowns Pump Manufacturing Co., Ltd. is a trusted name in precision pump solutions, with years of expertise in engineering reliable water pumps for demanding environments. Our Jockey Pump series is specifically designed to support fire protection systems by keeping water pressure stable at all times. These pumps play a critical role in maintaining system readiness, reducing response delays when a fire emergency occurs. Crafted with robust materials and built to international standards, each Jockey Pump offers consistent performance and long service life. Whether installed in high-rise buildings, industrial complexes, or municipal infrastructure, these pumps ensure that your fire safety system remains fully pressurized and operational, even when the main fire pump is not in use.

Crafted for challenging work environments, Shanghai Crowns Pump Manufacture Co., Ltd. Stainless Steel Air-Operated Double Diaphragm Pump （AODD）delivers dependable fluid handling where cleanliness and chemical resistance truly matter. Built from corrosion-resistant stainless steel, it performs well under tough conditions without compromising hygiene — a key factor in sectors like food processing, pharmaceuticals, personal care, and specialty chemicals. The pump runs on compressed air, making it a safe choice for areas where electrical equipment could pose risks. With a compact design and smooth operation, it’s easy to integrate into existing systems. It’s also simple to clean and maintain, supporting strict process requirements without unnecessary downtime. Whether you’re moving aggressive chemicals or handling delicate, contamination-sensitive materials, this pump offers a solid, practical solution backed by durable engineering.

Shanghai Crowns Pump Manufacturing Co., Ltd. delivers a reliable Fire Pump System featuring two jockey pumps, designed to maintain stable water pressure during fire emergencies. This efficient setup includes a pressure tank and control panel, ensuring optimal performance without main pump activation—critical for early-stage fire response. The dual-jockey design offers redundancy, auto-switching between pumps to sustain pressure and minimize maintenance downtime. Ideal for high-rises, industrial sites, and public buildings, it meets safety standards with quiet operation (≤75 dB) and space-saving integration. Trust our solution for proactive fire readiness, combining durability and smart control to safeguard assets and ensure compliance in emergency scenarios.

With decades of expertise in pump manufacturing, Shanghai Crowns Pump Manufacturing Co., Ltd. offers high-performance Fire Pump Systems. 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.