FIELD: control over pressure of fluid medium. SUBSTANCE: pressure control underground module has drop valve and valve controlling pressure. Valve controlling pressure includes two membrane units which secure capability of generation of outlet flow of variable pressure. Membrane is controlled by means of inlet hole of line of fluid medium. Fluid medium is fed to inlet hole with the aid of control device located on ground surface which is simultaneously recording unit determining parameters of consumption. EFFECT: simplified replacement of module as there is no need to conduct any digging operations. 8 cl, 4 dwg
