Technical Parameters Parameter Typical Specification / Description Product Series Eaton PDC (Displacement Cylinder) Product Type Brake Release Cylinder Bore Diameter Likely a standard size related to the "13" designation (e.g., measured in mm or inches). Stroke A specific stroke length defined by the model code. Maximum Operating Pressure A specific pressure rating (e.g., 2500 psi / 175 bar or higher). Port Size & Type Specific SAE ORB, NPTF, or metric port thread. Mounting Style Specific flange or foot mounting pattern. Seal Material Typically Nitrile (Buna-N) or other compatible material for hydraulic oil.