Dry-run resistant fluorine-lined centrifugal pump

This water-tank integrated self-circulation dry-run resistant fluorine-lined centrifugal pump is engineered for continuous, worry-free operation in harsh corrosive working conditions. Built with a robust metal housing fully lined with high-purity FEP or PFA fluoroplastics, it delivers exceptional resistance to strong acids, alkalis, oxidizers and organic solvents, making it compatible with nearly all aggressive chemical media.

Its innovative built-in water tank and self-circulation system continuously supplies cooling fluid to the mechanical seal chamber, allowing the pump to safely run dry for extended periods without damaging critical components. The optimally designed fluorine-alloy impeller with metal insert ensures high hydraulic efficiency and outstanding structural durability.

This pump strictly complies with ISO 2858 and GB/T 5656 quality standards, supporting flow rates from 6.3 to 400 m³/h and heads up to 132 meters, with an operating temperature range covering -85℃ to 200℃. It is widely applied in chemical processing, pharmaceutical manufacturing, electroplating, waste water treatment and other industries, serving as an ideal reliable alternative to expensive alloy pumps.

This self-circulation dry-run proof fluorine-lined centrifugal pump with integrated water tank is a single-stage end-suction centrifugal pump optimized for corrosive fluid handling. All wetted parts including pump casing, impeller and back cover are lined with fluoropolymer materials (FEP/PFA/PVDF), providing full corrosion resistance against 98% concentration sulfuric acid, hydrochloric acid, nitric acid, aqua regia, strong bases and most organic chemicals.

Proprietary self-circulation loop connected to the onboard water tank delivers continuous flushing and cooling to the seal faces, eliminating overheating and melting risks even during prolonged dry operation. The shaft seal adopts a hard-to-hard silicon carbide dual mechanical seal configuration, which is specially suitable for media containing fine solid particles.

Performance specifications: Rated speed 2900/1450 r/min, maximum working pressure 1.6 MPa, power range 0.55~110 kW. It features a back pull-out structure that enables easy maintenance without disconnecting inlet and outlet piping. This pump meets full ATEX explosion-proof requirements for hazardous locations, and is suitable for 24/7 continuous operation in chemical, metallurgical, pharmaceutical and flue gas desulfurization processes.