For various usages in open and closed loop circuits, Parker Series F12 is the solid performance bent axis, fixed displacement heavy-duty motor/pump series. The motors can be utilized at exceptionally high shaft speeds and operating pressures up to 480 bar. Some of the advantages of this series are less internal leakage and thermal shock resistance, increased self priming speed and low noise. The motors in the series have less moving parts and allow significant external axial and radial shaft loads. Parker Series F12 comes in with a laminated piston ring and has a 40 degree angle between the shaft and cylinder barrel.