Positive displacement pumps transfer fluid by trapping a fixed amount and forcing it to move from the inlet to the outlet. They maintain a consistent flow rate regardless of changes in pressure or viscosity as they move fluid through a sequence of enclosed spaces. Common types include pistons, diaphragms, and rotary pumps.<br /><br />Read More:-<br />https://medium.com/@fluorolined/7-proactive-maintenance-strategies-for-positive-displacement-pumps-5a776d5a5688
