Piston pumps generally employ two main methods of venting: internal and external. Here's a further explanation of each method: Internal Discharge: In the internal discharge method, the plunger pump contains internal passages or channels that allow the hydraulic oil to be redirected within the pump itself. These internal discharge passages are designed to control the flow and pressure of fluid during operation. By adjusting the position of the internal valve or port, the internal discharge system regulates the discharge of fluid, maintaining the desired pressure and flow rate. This approach is often used in compact integrated pump designs. External Drain: The external drain method involves directing the drained hydraulic fluid from the pump to an external reservoir or tank. Fluids are transported through external hoses or pipes to the reservoir where they can be controlled and managed. This external reservoir acts as a means to regulate fluid pressure and flow rate. In addition, it provides opportunities for cooling and filtering of the hydraulic oil, thereby increasing its performance and service life. This approach is often used in large or industrial applications. It is worth noting that the specific venting method used in a plunger pump may vary depending on the manufacturer, pump design, and application requirements. Therefore, it is recommended to consult the documentation provided by the specific displacement pump manufacturer or contact its customer support for accurate information on the venting method used in its products. In addition to internal leakage and external leakage, the plunger pump can also use several other exhaust methods: Recirculation: In the recirculation method, a portion of the discharged hydraulic oil is redirected back to the inlet of the pump. This allows fluid to circulate continuously within the pump, forming a closed loop system. By recirculating fluid, the pump maintains consistent pressure and flow. This method is often used in applications where a constant pressure needs to be maintained. Adjustable Pressure Control: Some piston pumps may have an adjustable pressure control mechanism as part of their venting method. This control allows the operator to manually adjust the pressure at which the pump releases fluid. By setting the desired pressure level, the pump will automatically adjust its discharge to maintain that pressure. This approach provides flexibility and control over pump operation. 90-L-100-KP-1-NN-60-P-4-F1-F-03-GBA-38-38-24 90L100KP1NN60P4F1F03GBA383824 90L100-KP-1-NN-60-P-4-S1-E-03-GBA-29-29-24 90L100KP1NN60P4S1E03GBA292924 90-L-100-KP-1-NN-60-P-4-S1-E-03-GBA-35-35-24 90L100KP1NN60P4S1E03GBA353524 90-L-100-KP-1-NN-60-R-3-C7-E-03-GBA-38-38-24 90L100KP1NN60R3C7E03GBA383824 90-L-100-KP-1-NN-60-R-3-F1-E-03-GBA-29-29-24 90L100KP1NN60R3F1E03GBA292924 90-L-100-KP-1-NN-60-R-3-F1-E-03-GBA-38-38-24 90L100KP1NN60R3F1E03GBA383824 90-L-100-KP-1-NN-60-R-3-F1-E-03-GBA-42-42-24 90L100KP1NN60R3F1E03GBA424224 90-L-100-KP-1-NN-60-R-3-S1-E-03-GBA-26-26-26 90L100KP1NN60R3S1E03GBA262626 90-L-100-KP-1-NN-60-R-3-S1-E-03-GBA-32-32-26 90L100KP1NN60R3S1E03GBA323226 90-L-100-KP-1-NN-60-R-3-S1-E-03-GBA-35-35-28 90L100KP1NN60R3S1E03GBA353528 Variable Displacement: Piston pumps with variable displacement capability can adjust the amount of fluid displaced with each stroke. By changing displacement, the pump can effectively regulate pressure and flow. This is accomplished by mechanisms such as an adjustable swash plate or a piston that changes the length of the stroke. This method is especially useful when there are different flow requirements or when pressure regulation is required. It is important to note that the availability and implementation of these venting methods may vary depending on the specific displacement pump design and manufacturer. For details on the venting method employed in a particular displacement pump model, it is recommended to consult the manufacturer's documentation or contact their customer support for accurate and up-to-date information. The method of venting piston pumps can vary depending on the specific design and application. Here are some common exhaust methods: Internal Discharge: In this method, the plunger pump incorporates internal passages and valves to control the flow and pressure of the hydraulic fluid. An internal discharge system allows the pump to regulate the discharge of fluid within the pump, maintaining the desired pressure and flow rate. External Drain: This method involves directing the drained hydraulic oil from the pump to an external reservoir or tank. Fluids are transported through external hoses or pipes to the reservoir where they can be controlled and managed. External discharge systems help regulate the pressure and flow rate of fluids and may include other components such as cooling and filtration systems. Recirculation: In the recirculation method, a portion of the discharged hydraulic oil is redirected back to the inlet of the pump. This creates a closed loop system where fluid circulates continuously within the pump. Recirculation allows the pump to maintain a consistent pressure and flow rate. Adjustable Pressure Control: Some piston pumps have an adjustable pressure control mechanism. These allow the operator to manually adjust the pressure at which the pump releases fluid. By setting the desired pressure level, the pump adjusts its discharge accordingly to maintain that pressure. 90-L-100-KP-1-NN-60-R-3-S1-E-03-GBA-38-38-20 90L100KP1NN60R3S1E03GBA383820 90-L-100-KP-1-NN-60-R-3-S1-E-03-GBA-38-38-24 90L100KP1NN60R3S1E03GBA383824 90-L-100-KP-1-NN-60-R-3-S1-F-03-GBA-32-32-26 90L100KP1NN60R3S1F03GBA323226 90-L-100-KP-1-NN-60-R-4-F1-E-00-GBA-32-32-24 90L100KP1NN60R4F1E00GBA323224 90-L-100-KP-1-NN-60-R-4-F1-E-03-GBA-35-35-24 90L100KP1NN60R4F1E03GBA353524 90-L-100-KP-1-NN-60-R-4-S1-E-03-GBA-35-35-24 90L100KP1NN60R4S1E03GBA353524 90-L-100-KP-1-NN-60-R-4-S1-F-06-GBA-38-38-20 90L100KP1NN60R4S1F06GBA383820 90-L-100-KP-1-NN-60-S-3-F1-E-03-GBA-42-42-24 90L100KP1NN60S3F1E03GBA424224 90-L-100-KP-1-NN-60-S-3-S1-F-03-GBA-42-42-24 90L100KP1NN60S3S1F03GBA424224 90-L-100-KP-1-NN-60-S-3-T2-E-03-GBA-42-42-24 90L100KP1NN60S3T2E03GBA424224 Variable Displacement: Piston pumps with variable displacement capability can adjust the amount of fluid displaced with each stroke. This allows precise control of pressure and flow rate. Variable displacement is achieved through mechanisms such as adjustable swash plates or pistons that vary the length of the stroke. It is important to note that the specific venting method used in a piston pump may depend on factors such as the manufacturer, pump model, and application requirements. For detailed and accurate information on the method of venting a specific displacement pump, it is recommended to consult the manufacturer's documentation or contact their customer support for the latest information.