Valve T-40 flow separation, Kharkiv region.

Flow valve with fittings T-40M, T30-3405190 is intended for use on T-40M tractors, as well as for construction and other machinery.
(//tractor-service.com)
Flow dividing valve T30-3405190tractor T-40 serves to distribute the flow of working fluid in the hydraulic system of the T-40 tractor. It is installed at theoutput of the pump NSh-32 and distributes the flow between the hydraulic power steering and the working system of the tractor.

It serves to distribute the flow of working fluid in the hydraulic system of the T-40 tractor. It is installed at the output of the NSh-32 pump and distributes the flow between the power steering and the tractor's working system. Below is the diagram of the hydraulic system of the T-40 tractor