Simple and quick maintenance and with easy-to-replace components, diaphragm pumps BX 50 are fed with non-lubricated air and have an adjustable flow rate and head. Their explosion-proof properties have been certified for the ATEX version according to  Directive 94/9/EC ATEX Equipment. Other technical advantages regard speed fine tuning without affecting high pressure, the potential to double the manifolds and mount connections in 3 positions on discharge or suction. These pneumatic diaphragm pumps also run dry without problems and are equipped with patented internal coaxial exchangers.