These pneumatic devices utilize compressed gas, typically air, to displace and move petroleum-based liquids. Operating on a positive displacement principle, they create a pressure differential that draws fluid into a chamber and subsequently expels it. An example is their use in evacuating lubricating fluid from machinery reservoirs or transferring hydraulic fluid during maintenance procedures.
Their significance lies in their ability to efficiently and safely manage the movement of viscous and potentially hazardous materials. Compared to manual methods, these systems offer increased speed, reduced labor, and minimized risk of spillage or exposure. Historically, their adoption marked a considerable improvement in industrial hygiene and operational efficiency within sectors dealing with petrochemicals.
