I. Product Overview
The QBK series engineering plastic pneumatic diaphragm pump is a professional fluid transfer device manufactured from high-quality engineering plastics, specifically designed for handling corrosive media. Constructed from high-performance PP (polypropylene), this series offers excellent chemical corrosion resistance, enabling the safe transfer of various corrosive liquids, including acids, alkalis, salt solutions, and organic solvents. Widely used in industries such as chemical processing, electroplating, environmental protection, metallurgy, and pharmaceuticals, it is an ideal choice for transporting corrosive media.
II. Key Features
**High-quality engineering plastic construction; excellent corrosion resistance**
Key components—such as the pump body and diaphragms—are made of PP engineering plastic.
Resistant to corrosion from most acids, alkalis, and salt solutions (e.g., hydrochloric acid, sulfuric acid, hydrofluoric acid).
PP material withstands temperatures up to 80°C.
Completely eliminates metal ion contamination, ensuring medium purity.
**Pneumatic drive design; safe and reliable**
Driven by compressed air; requires no electricity and generates no electrical sparks.
Complies with explosion-proof requirements; suitable for flammable and explosive hazardous areas.
Motor-free design avoids electromagnetic interference and ensures more stable operation.
**Leak-free structure; excellent self-priming performance**
Utilizes pneumatic diaphragm technology to achieve a completely sealed, leak-free operation.
Self-priming lift of 5–7 meters; capable of dry running without damage.
Handles media containing trace solid particles (maximum particle diameter ≤ 10mm).
Transports high-viscosity liquids (up to 10,000 cP).
**Simple operation and maintenance**
No mechanical seals; reduces potential leak points and maintenance requirements.
Modular structural design allows for quick replacement of wear parts.
Routine maintenance can be performed using simple tools.
Low operating noise creates a more comfortable working environment.
**Excellent performance parameters**
Flow rate range: 0.8–32 m³/h
Maximum head: 70 meters
Operating pressure: 0.2–0.7 MPa
Inlet/Outlet diameter: DN15–DN100
Stepless flow rate adjustment via air supply pressure control.
III. Typical Application Scenarios
Chemical Industry: Transport and circulation of various acid, alkali, and salt solutions.
Electroplating Industry: Circulation and transport of electroplating solutions and pickling fluids.
Environmental Engineering: Wastewater treatment, waste acid recovery, and other environmental applications.
Metallurgical Industry: Transport of corrosive media such as electrolytes and leachates.
Pharmaceutical Industry:Transport of pharmaceutical chemicals, including active pharmaceutical ingredients (APIs) and intermediates.
IV. Product Advantages Summary
✅ Strong Corrosion Resistance: Made of high-quality engineering plastic; resistant to various corrosive media.
✅ Safe and Reliable: Pneumatically driven; no electrical sparks; suitable for hazardous areas.
✅ Leak-free design: Fully sealed structure that completely eliminates media leakage.
✅ High adaptability: Capable of handling challenging media, including those with particulates or high viscosity.
✅ Cost-effective and practical: Low maintenance costs and a long service life.
The Shanglun QBK engineering plastic pneumatic diaphragm pump is an ideal choice for transporting corrosive media, thanks to its superior corrosion resistance, safe and reliable pneumatic drive, and excellent media compatibility. Its engineering plastic construction ensures stable, long-term operation in corrosive environments, while its ease of maintenance and operational flexibility make it a professional solution for handling corrosive media across industries such as chemicals, electroplating, and environmental protection.
