Diaphragm pumps of M41 and M71 Series are completely oil-free. They can be used either to create vacuum or pressure. The M41 Series has a Ryton®-made pump body, the diaphragm and the gasket VITON, EPDM or PTFE. The M71 Series has the pump body made of galvanized anticorodal aluminium, the diaphragms and the gaskets can be made of NBR, EPDM or VITON. All the pumps are available either with single or double-head to be used either in parallel or in series. The M41 Series can also be supplied with three or four heads to increase the capacity.