An air-operated fluoroelastomer diaphragm pump is a novel conveying machinery powered by compressed air, suitable for various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, explosive, and highly toxic liquids. The pump is encased in HT200 cast iron, boasting excellent physical properties, and lined with polytetrafluoroethylene (F46), making it applicable to any acid, alkali, and various organic solvents except molten alkali salts, with a wide range of applications.

Operating Principle

The pneumatic fluorine-lined diaphragm pump distributes air through the reciprocating motion of the valve, driving the diaphragm to compress and convey the medium, achieving the working principle of a positive displacement pump. Its operation process is similar to that of a plunger pump, and due to the unique characteristics of the diaphragm pump, it boasts advantages such as not overheating, not generating electrical sparks, and being able to handle liquids containing particles, and having low shear force on the material.

Key Features

No need for water injection: Suction lift up to 7 meters, lift height up to 50 meters, outlet pressure ≥ 6 kgf/cm².

Flow spacious: Allows passage of large particles up to 10mm diameter, causing minimal wear to the pump during slurry and impurity pumping.

No Rotating Parts: No shaft seal, the diaphragm completely isolates the pumped medium from the pump's moving parts, ensuring no leakage of the medium. Suitable for toxic, volatile, or corrosive media.

Energy-saving and environmental protection: Can be started under low pressure using ordinary clean industrial gas or instrument gas, saving more than 30% of gas consumption during normal transportation conditions.

Safety & Reliability: No electricity required, suitable for flammable and explosive environments, and capable of submerged operation in mediums.

‌Simple Structure: Fewer vulnerable parts, easy installation and maintenance; the medium being pumped does not come into contact with moving parts such as the valve actuator and connecting rods._

Self-protection: The pump is equipped with self-protection features, ensuring it won't be damaged even during long-term operation without medium or sudden shutdowns.

Application Fields

Aerodynamic Fluorine-lined Diaphragm Pumps are widely used in various applications involving corrosive liquids, particle-laden liquids, high-viscosity liquids, volatile liquids, and highly toxic liquids, such as ceramic glaze slurry, fruit pulp, adhesives, oil tanker bottom oil recovery, and temporary tank transfer. Particularly suitable for resolving issues like leakage, dripping, and running dry of impeller pumps, as well as for situations where no-idle operation is not permitted.