7 Machinery and apparatus for conveying or pumping, and systems and equipment made therefrom; pumps (parts of machines or engines); filters, separators, magnetic filters, filter bodies, filter funnels, strainers, deaerators, condensers, mist eliminators, adsorbers, liquid separators, phase separators, coalescers and oil separators as parts of machines and engines; fuel filters and separators for refuelling vehicles and aircraft; Filter presses; centrifuges (machinery); fuel filters for vehicle and aircraft refuelling in conjunction with a pressure measuring and/or indicating device connected to the filter; heat exchangers (machinery parts); fuel dispensers for filling stations and installations consisting thereof; refuelling installations consisting essentially of fuel dispensers; fuel and fuel pumps with self-regulation