The document details a series of dual seal plunger pumps designed for fluid metering, featuring a 316 stainless steel liquid end, high flow turndown, and ease of maintenance and installation. It outlines the operational mechanics, material specifications, and performance guidelines including filtration needs, viscosity limits, and recommendations for optimal operating conditions. Additionally, it provides detailed performance specifications including pump selection guidelines, air/gas pressure requirements, and expected flow capabilities based on stroke rates.