The new series of SAO and SAG lubrication units with the internal electronic card in versions with and without automatic control. SAO aggregates are produced in the version for lubricating oils and SAG in the version for liquid greases, they are used as sources of pressure lubricant for single-line central lubrication systems. Lubrication circuits are equipped with single-line metering valves of the SKIE, SKIB and SKIC series using SRK manifolds. The new series of SKID block metering valves has been added to these standard metering valves, which are already built into the manifolds, which significantly reduces the labor of assembly or service.