The Metric Flat Face Hexagonal Internal Plug regulates and seals the inlet opening to control the entry of hydraulic fluid into the system. Proper sealing prevents unwanted leakage and supports stable pressure conditions during operation. Controlled fluid entry helps maintain smooth hydraulic response and consistent system performance. By securing the inlet point, pressure stability is maintained, and flow interruptions are reduced. Reliable sealing improves operational control and reduces the risk of performance fluctuations.Attributes:• Provides a secure seal to control hydraulic fluid entry.• Maintains stable inlet pressure during system operation.• Prevents fluid leakage from the inlet opening.Applications: The Metric Flat Face Hexagonal Internal Plug is applied in hydrostatic drive piston pump systems to secure the inlet opening and control fluid entry. It controls sealing, maintains stable pressure conditions, and supports smooth hydraulic power transmission throughout operation.