... airflow i BQG-100/0.3 Pneumatic Membrane PumpPneumatic Membrane Pump is easy to operate, reliable, portable with low noise, ... and rib drill. No danger of electricity.The pneumatic membrane pump (nonmetal cover) is the only product obtained the Safety Standard ... industry, such as food, medicine.e. Diverter valve with special structure, flexible running, no dead center, low air consumption;f. Perfect ...