The QBY type pneumatic diaphragm pump is a novel pump currently available in China, capable of transferring various corrosive liquids, those with particles, high viscosity, volatile, flammable, explosive, and highly toxic liquids, as well as ceramic glaze, fruit pulp, glue, oil recovery from tanker holds, temporary tank transfer, and more. The pump body and flow components are made from stainless steel, aluminum alloy, cast iron, and engineering plastics. The diaphragm is made from nitrile rubber, fluorine rubber, neoprene, polytetrafluoroethylene, and perfluoroalkoxy alkane (F46) depending on the liquid being handled.
The QBY series pneumatic diaphragm pump uses compressed air, steam, or industrial waste gas as a power source, with a suction lift of 7m, a head of 0-50m, and a flow rate of 0.8-40 m³/h that can be adjusted steplessly.
Engineering plastic diaphragm pump product features
1. No shaft seal, no leakage, and wide flow path ensure that when transporting media containing particles and high viscosity (up to 10,000 centipoise), as well as volatile and corrosive substances, there is no environmental pollution or risk to personal safety.
2. No rotating parts, good performance allows for particles with a diameter of up to 10mm to pass through. The liquid flows without shear, resulting in minimal wear on the pump's components. This causes little damage to the conveyed materials, capable of transporting sludge and living organisms such as small fish fry.
3. No need for priming water; strong self-priming ability with a suction lift of up to 7m. Long dry running time does not damage the pump. If overloaded, the pump will automatically shut down and restart when the load returns to normal, featuring a self-protection function (electric pumps do not have this feature).
4. The pneumatic pump can achieve a head of up to 50m, while the electric pump reaches 30m, with outlet pressure up to 0.6mpa. Head and flow can be adjusted steplessly through the air valve opening, with air pressure adjustment between 1-7kgf/cm². Electric pumps do not have this capability and require a regulating valve for control.
5. The pneumatic pump can work submerged in the medium, with no power supply required, making it safe and reliable (electric pumps do not have this capability).
6. The pneumatic pump does not require a power supply, making it more suitable for transporting media in flammable and explosive environments.
Engineering plastic diaphragm pump performance parameters
| No. |
Flow Rate (m³/h) |
Head (m) |
Outlet Pressure (kgf/cm²) |
Suction Lift (m) |
Max Particle Size (mm) |
Max Air Supply Pressure (kgf/cm²) |
Max Air Consumption (m³/min) |
Materials | |||
| Aluminum Alloy | Stainless Steel | Cast Iron | Reinforced Polypropylene | ||||||||
| QBY-10 | 0～0.8 | 0～50 | 5 | 5 | 1 | 7 | 0.3 | ★ | ★ | ★ | ★ |
| QBY-15 | 0～1 | 0～50 | 5 | 5 | 1 | 7 | 0.3 | ★ | ★ | ★ | ★ |
| QBY-25 | 0～2.4 | 0～50 | 5 | 7 | 2.5 | 7 | 0.6 | ★ | ★ | ★ | ★ |
| QBY-40 | 0～8 | 0～50 | 5 | 7 | 4.5 | 7 | 0.6 | ★ | ★ | ★ | ★ |
| QBY-50 | 0～12 | 0～50 | 5 | 7 | 8 | 7 | 0.9 | ★ | ★ | ★ | ★ |
| QBY-65 | 0～16 | 0～50 | 5 | 7 | 8 | 7 | 0.9 | ★ | ★ | ★ | ★ |
| QBY-80 | 0～24 | 0～50 | 5 | 7 | 10 | 7 | 1.5 | ★ | ★ | ★ | ★ |
| QBY-100 | 0～30 | 0～50 | 5 | 7 | 10 | 7 | 1.5 | ★ | ★ | ★ | ★ |
Engineering plastic pneumatic diaphragm pumpOrder Instructions:
1. ①Engineering plastic pneumatic diaphragm pumpProduct name and model②Engineering plastic pneumatic diaphragm pumpCaliber③Engineering plastic pneumatic diaphragm pumpHead (m)④Engineering plastic pneumatic diaphragm pumpFlow rate⑤Engineering plastic pneumatic diaphragm pumpMotor power (KW)⑥Engineering plastic pneumatic diaphragm pumpSpeed (r/min)⑦Engineering plastic pneumatic diaphragm pumpPressure [V]⑧Engineering plastic pneumatic diaphragm pumpSuction lift (m)⑨Engineering plastic pneumatic diaphragm pumpWhether to include accessories for us to select the correct model.
