Normally closed Model PRV controls pressure proportional to valve input signal, allowing operator to control pressure in hydraulic systems. It is rated for pressures to 3,600 psi. Electroproportional valve is available in 2 sizes: smaller fits 10-2 cavity, larger fits 12-2 cavity, with flow capability of 21 and 50 gpm, respectively. Four-way, 3-position Model PSV controls output flow proportional to electrical input. Rated for flows from 0-5.7 gpm, it fits 10-4 cavity and handles pressures to 3,600 psi.