The QBK pneumatic diaphragm pump is the third-generation pneumatic diaphragm pump developed by our company. 

Product Advantages

1. No need for priming water, with a suction lift of up to 5 meters, a head of up to 70 meters, and an outlet pressure of ≥7 bar;

2. Wide flow path and excellent passing performance, allowing the passage of particles with diameters up to 10 mm. When pumping mud or impurities, the wear on the pump is minimal;

3. The head and flow rate can be steplessly adjusted by opening the air valve (air pressure adjustment range: 1-7 bar);

4. The pump has no rotating parts and no shaft seal. The diaphragm separates the pumped medium from the moving parts and working medium of the pump, ensuring no leakage of the transported medium. Therefore, when pumping toxic, volatile, or corrosive media, it will not cause environmental pollution or harm personal safety;

5. No electricity required, making it safe and reliable for use in flammable and explosive environments;

6. Can operate submerged in the medium;

7. Easy to use and reliable in operation. Starting and stopping only require simply opening and closing the gas valve. Even if the pump runs without medium for an extended period due to unexpected circumstances or suddenly stops, it will not be damaged. Once overloaded, the pump will automatically shut down with self-protection functionality. When the load returns to normal, it can automatically restart and operate;

8. Simple structure and few vulnerable parts. The pump has a simple structure, is easy to install and maintain, and the medium transported does not come into contact with moving parts such as the air distribution valve and connecting rod. Unlike other types of pumps, its performance does not gradually decline due to wear of rotors, pistons, gears, blades, or other components;

9. Can transport highly viscous liquids (viscosity below 10,000 centipoise);

10. The pump does not require oil lubrication. Even running dry will not affect the pump, which is a major feature of this pump; 

11. Plastic flange pressure: PN0.6 MPa (10 bar); metal flange pressure: PN1.0 MPa (10 bar).