Amarinth API 11th Edition Process Pump A Series petrochemical process pumps are designed and manufactured for a number of applications including LPG, fuel transfer, produced water and export duties. The pumps are typically found in the oil & gas production and refinery industries, though they can be used for other applications such as seawater and condensate duties. A Series pumps are designed for low NPSH applications and all have independently verified, full ATEX Pump compliance.