The Model DS 2-Position Double Selector Valve directs the flow of hydraulic oil to two separate circuits. This permits operation of two double-acting cylinders with one four-way control valve or four single-acting cylinders with two three-way control valves. The hydraulic circuit which is to be operated should be selected before pressure is applied. Valve is of the open crossover type. As spool is moved and one set of outlet ports start to close, the other set of outlet ports start to open.