The OVAL PI45B10 is a positive displacement (PD) flowmeter designed for accurate volumetric measurement of liquid flow. Manufactured by OVAL Corporation, this meter utilizes precisely machined internal components to divide the flow stream into known volumes. Positive displacement meters like the PI45B10 are valued for their high accuracy, particularly with viscous fluids, and their independence from flow profile effects. They are commonly employed in custody transfer, batching, and process control applications across various industries where precise liquid measurement is critical.