French to English Tech/Engineering Petroleum Eng/Sci

I have extremely limited context for this phrase, and the client has been less than forthcoming with assistance. The document discusses the facilities at an airport's fuel farm (depot d'hydrocarbures), including:

cuves d'expédition, les pomperies qui leur sont associées et le poste de commande permettant leurs actionnement et supervision

Research tells me that "cuves d'expedition" are also sometimes referred to as "bacs d'expedition", with the following description: "pomperie de transfert : le transfert de produit entre les bacs de réception et d'expédition (via la station
de filtration), s'effectue au moyen de trois pompes d'un débit unitaire de 300 m3", but there I draw a blank.

Many thanks in advance.