Hydraulic Motor/Pump - Parker HannifinF11/F12 motors, in frame sizes -5 to -40 cc, are common in Fan applications. Some typical options are, built in check valve, pressure relief valve, cartridge flange Hydraulic Motor/Pump Series F11/F12 zp12 - Parker HannifinParker Hannifin. Mobile Controls Division. Trollhättan, Sweden. Hydraulic motor/pump. Series F11/F12. Catalogue HY17-8249/US. Content. Content. PageHydraulic Motor/Pump - Parker HannifinF11/F12 motors, in frame sizes -5 to -40 cc, are common in Fan applications. Some typical options are, built in check valve, pressure relief valve, cartridge flange Hydraulic Motor/Pump Series F11/F12 - Parker HannifinParker Hannifin. Hydraulic motor/pump. Series F11/F12. F11 cross section. 1. Barrel housing. 2. Valve plate. 3. Cylinder barrel. 4. Guide spacer with O-rings. 5Hydraulic Motor/Pump Series F11/F12 zp12 - Parker HannifinThanks to the unique spherical piston design, F11/F12 motors can be used at unusually high shaft speeds. Operating pressures to 480 bar provides for the high