Made from materials that comply with FDA and EU 1935/2004 regulations, piFLOWp vacuum conveyors are available in ATEX dust- and gas-approved designs, in which all plastic or rubber parts including filters and seals, are made of antistatic nitrile butadiene rubber. Wet-in-place spray nozzles are available as an inclusion or for retrofitting. Up to 3 spray nozzles can be fitted to each conveyor.