Series DY25 are two stage, 4-way, flapper and nozzle style servovalves. They have the same port patt..
Series DY3H and DY6H are two stage, 4-way, high frequency, closed center servovalves, with mechanica..
Series DY45 are two stage, 4-way, flapper and nozzle style servovalves. These valves are rated for 2..