Pneumatic double diaphragm pump, working also in dry running condition, selfpriming up to 5 m suction lift, without any electric drive, suitable for the use also with fluids of higher viscosity and for fluids containing particles up to 8 mm size, body in aluminium, diaphragms in Hytrel® + PTFE, balls in SS, o – rings in Viton®, seats in aluminium. The pump is constructed in accordance with directive ATEX 2014/34/EU – zone 2.