A plunger pump usually consists of a high-pressure oil circuit and a low-pressure oil circuit, each of which performs a different function in the hydraulic system. Here is an overview of the two circuits: High pressure oil circuit: 1. Function: The high-pressure oil circuit of the plunger pump is responsible for generating and delivering pressurized hydraulic oil to provide power for various hydraulic actuators or components in the system. 2. Oil flow: In the high-pressure circuit, the plunger pump sucks low-pressure oil from the oil tank or the low-pressure circuit, and pressurizes it through the reciprocating movement of the plunger. 3. Piston pump components: The high-pressure circuit includes cylinders, plungers, valves and other components that directly participate in pressurization and delivery of hydraulic oil. 4. Pressure control: The high pressure circuit may contain a pressure relief valve or pressure compensator to regulate the maximum pressure output of the pump and protect the system from excessive pressure. 5. Flow control: The flow in the high-pressure circuit is determined by the displacement, speed of the pump and the position of the control mechanism (such as a swash plate or a variable displacement control device). ER-L-100B-LS-25-28-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BLS2528NNN3S1NLA1NNNNNNNNNNNN ER-L-100B-LS-25-30-NN-N-3-S2BP-A1N-NNN-NNN-NNN ERL100BLS2530NNN3S2BPA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-K5NL-A1N-NNN-NNN-NNN ERL100BLS2620NNN3K5NLA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL100BLS2620NNN3K5NPA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-S1BP-A1N-AAA-NNN-NNN ERL100BLS2620NNN3S1BPA1NAAANNNNNN ER-L-100B-LS-26-20-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BLS2620NNN3S1NLA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-S1NP-A1N-AAA-NNN-NNN ERL100BLS2620NNN3S1NPA1NAAANNNNNN ER-L-100B-LS-26-20-NN-N-3-S1RP-A1N-AAA-NNN-NNN ERL100BLS2620NNN3S1RPA1NAAANNNNNN ER-L-100B-LS-26-20-NN-N-3-S2CP-A1N-NNN-NNN-NNN ERL100BLS2620NNN3S2CPA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-S2NL-A1N-AAA-NNN-NNN ERL100BLS2620NNN3S2NLA1NAAANNNNNN ER-L-100B-LS-26-20-NN-N-3-S2VP-A1N-NNN-NNN-NNN ERL100BLS2620NNN3S2VPA1NNNNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-S2WP-A1N-NNN-NNN-NNN ERL100BLS2620NNN3S2WPA1NNNNNNNNNN ER-L-100B-LS-26-20-NN-N-3-S4NL-A1N-AAA-NNN-NNN ERL100BLS2620NNN3S4NLA1NAAANNNNNN ER-L-100B-LS-26-24-NN-N-3-S1N1-A1N-AAA-NNN-NNN ERL100BLS2624NNN3S1N1A1NAAANNNNNN ER-L-100B-LS-26-30-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BLS2630NNN3S1NLA1NNNNNNNNNNNN ER-L-100B-LS-27-22-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL100BLS2722NNN3S1BPA1NNNNNNNNNNNN ER-L-100B-LS-28-10-NN-N-3-S4AP-A1N-AAA-NNN-NNN ERL100BLS2810NNN3S4APA1NAAANNNNNN ER-L-100B-LS-28-20-NN-N-3-K5NL-A1N-NNN-NNN-NNN ERL100BLS2820NNN3K5NLA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL100BLS2820NNN3K5NPA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL100BLS2820NNN3S1BPA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S1CP-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S1CPA1NAAANNNNNN 6. Hydraulic actuators: Pressurized oil from a high-pressure circuit is directed to hydraulic actuators, such as cylinders or motors, enabling them to generate mechanical force or motion. 7. Pressure transmission: High pressure hoses or pipes are used to transmit pressure oil from the pump to the hydraulic actuator. 8. Pressure Rating: High pressure oil circuits are designed to handle and generate the high pressure required for specific applications. The pressure rating of the pump and the design and strength of the components in the high-pressure circuit determine the maximum pressure the pump can generate. 9. Sealing: Since the high-pressure circuit works under high pressure, special attention should be paid to sealing parts such as seals, gaskets, and O-rings. These seals prevent oil leakage and ensure high pressure oil remains in the circuit. 10. Control valves: High pressure circuits may contain control valves to regulate the direction, flow and pressure of hydraulic fluid. These valves can be manually, mechanically or electronically controlled, allowing precise control of hydraulic systems. 11. Pressure transducer: A pressure transducer or transducer can be installed in the high pressure circuit to monitor and provide feedback on the system pressure level. This information may be used for system control, safety and diagnostic purposes. 12. Bursting discs: In some high-voltage systems, bursting discs or bursting discs are used as safety devices. These discs are designed to rupture and relieve excess pressure in the event of a system failure, preventing damage to the pump or other components. 13. High-pressure connection: The high-pressure circuit adopts strong hose, pipe or fittings, which are specially designed to handle high pressure and ensure a reliable connection between the pump and hydraulic actuator. ER-L-100B-LS-28-20-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BLS2820NNN3S1NLA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S1NP-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S1NPA1NAAANNNNNN ER-L-100B-LS-28-20-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL100BLS2820NNN3S1NPA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S1RP-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S1RPA1NAAANNNNNN ER-L-100B-LS-28-20-NN-N-3-S2BP-A1N-NNN-NNN-NNN ERL100BLS2820NNN3S2BPA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S2NL-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S2NLA1NAAANNNNNN ER-L-100B-LS-28-20-NN-N-3-S2NP-A1N-NNN-NNN-NNN ERL100BLS2820NNN3S2NPA1NNNNNNNNNNNN ER-L-100B-LS-28-20-NN-N-3-S4AP-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S4APA1NAAANNNNNN ER-L-100B-LS-28-20-NN-N-3-S4CP-A1N-AAA-NNN-NNN ERL100BLS2820NNN3S4CPA1NAAANNNNNN ER-L-100B-LS-28-24-NN-N-3-S2CP-A1N-NNN-NNN-NNN ERL100BLS2824NNN3S2CPA1NNNNNNNNNNNN ER-L-100B-LS-28-24-NN-N-3-S2NP-A1N-NNN-NNN-NNN ERL100BLS2824NNN3S2NPA1NNNNNNNNNNNN ER-L-100B-LS-28-24-NN-N-3-S2U6-A1N-NNN-NNN-NNN ERL100BLS2824NNN3S2U6A1NNNNNNNNNN ER-L-100B-LS-28-24-NN-N-3-S4CP-A1N-AAA-NNN-NNN ERL100BLS2824NNN3S4CPA1NAAANNNNNN ER-L-100B-LS-28-25-NN-N-3-S1AP-A1N-NNN-NNN-NNN ERL100BLS2825NNN3S1APA1NNNNNNNNNNNN ER-L-100B-LS-28-28-NN-N-3-S1RP-A1N-NNN-NNN-NNN ERL100BLS2828NNN3S1RPA1NNNNNNNNNNNN ER-L-100B-PC-10-NN-NN-N-3-K5CP-A1N-AAA-NNN-NNN ERL100BPC10NNNNN3K5CPA1NAAANNNNNNN ER-L-100B-PC-10-NN-NN-N-3-S1BP-A1N-AAA-NNN-NNN ERL100BPC10NNNNN3S1BPA1NAAANNNNNN ER-L-100B-PC-10-NN-NN-N-3-S1CP-A1N-AAA-NNN-NNN ERL100BPC10NNNNN3S1CPA1NAAAANNNNNNN ER-L-100B-PC-10-NN-NN-N-3-S1NL-A1N-AAA-NNN-NNN ERL100BPC10NNNNN3S1NLA1NAAAANNNNNNN ER-L-100B-PC-11-NN-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL100BPC11NNNNN3S1NPA1NNNNNNNNNNNN ER-L-100B-PC-14-NN-NN-N-3-K5NL-A1N-NNN-NNN-NNN ERL100BPC14NNNNN3K5NLA1NNNNNNNNNNNN Low pressure oil circuit: 1. Function: The low-pressure oil circuit of the plunger pump is responsible for supplying oil to the pump, lubricating its internal parts, and returning the oil to the oil tank. 2. Oil supply: The low-pressure circuit draws oil from the oil tank or tank and supplies it to the inlet or suction port of the pump. 3. Filtration: The low pressure circuit may include an oil filter to remove contaminants and ensure a supply of clean oil to the pump, protecting its internal components from damage. 4. Cooling and Lubrication: The low-pressure circuit provides oil for cooling and lubricating the moving parts of the plunger pump, reducing friction and maintaining normal operation. 5. Oil return: After the low-pressure oil is sucked into the pump and pressurized in the high-pressure circuit, the excess oil or leaked oil returns to the oil tank through the oil return pipe or channel. 6. Temperature control: Some plunger pumps may include an oil cooler or heat exchanger in the low pressure circuit to control the temperature of the hydraulic oil and prevent overheating. ER-L-100B-PC-14-NN-NN-N-3-S2NP-A1N-NNN-NNN-NNN ERL100BPC14NNNNN3S2NPA1NNNNNNNNNNNN ER-L-100B-PC-15-NN-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL100BPC15NNNNN3S1BPA1NNNNNNNNNNNN ER-L-100B-PC-17-NN-NN-N-3-K5BP-A1N-AAA-NNN-NNN ERL100BPC17NNNNNN3K5BPA1NAAAANNNNNNN ER-L-100B-PC-17-NN-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BPC17NNNNN3S1NLA1NNNNNNNNNNNN ER-L-100B-PC-18-NN-NN-N-3-K5NL-A1N-NNN-NNN-NNN ERL100BPC18NNNNN3K5NLA1NNNNNNNNNNNN ER-L-100B-PC-18-NN-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL100BPC18NNNNNN3S1BPA1NNNNNNNNNNNN ER-L-100B-PC-18-NN-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL100BPC18NNNNN3S1CPA1NNNNNNNNNN ER-L-100B-PC-18-NN-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL100BPC18NNNNNN3S1NPA1NNNNNNNNNNNN ER-L-100B-PC-18-NN-NN-N-3-S1VP-A1N-NNN-NNN-NNN ERL100BPC18NNNNNN3S1VPA1NNNNNNNNNNNN ER-L-100B-PC-20-NN-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL100BPC20NNNNNN3K5NPA1NNNNNNNNNNNN ER-L-100B-PC-20-NN-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL100BPC20NNNNN3S1CPA1NNNNNNNNNNNN ER-L-100B-PC-20-NN-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL100BPC20NNNNN3S1NLA1NNNNNNNNNNNN ER-L-100B-PC-20-NN-NN-N-3-S1NP-A1N-AAA-NNN-NNN ERL100BPC20NNNNN3S1NPA1NAAAANNNNNNN ER-L-100B-PC-20-NN-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL100BPC20NNNNN3S1NPA1NNNNNNNNNNNN ER-L-100B-PC-20-NN-NN-N-3-S1RP-A1N-AAA-NNN-NNN ERL100BPC20NNNNN3S1RPA1NAAAANNNNNNN ER-L-100B-PC-21-NN-NN-N-3-S1CP-A1N-AAA-NNN-NNN ERL100BPC21NNNNN3S1CPA1NAAANNNNNN ER-L-100B-PC-21-NN-NN-N-3-S1NL-A1N-AAA-NNN-NNN ERL100BPC21NNNNN3S1NLA1NAAAANNNNNNN ER-L-100B-PC-21-NN-NN-N-3-S1NP-A1N-AAA-NNN-NNN ERL100BPC21NNNNN3S1NPA1NAAANNNNNN ER-L-100B-PC-21-NN-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL100BPC21NNNNN3S1NPA1NNNNNNNNNNNN ER-L-100B-PC-21-NN-NN-N-3-S2NP-A1N-NNN-NNN-NNN ERL100BPC21NNNNNN3S2NPA1NNNNNNNNNNNN ER-L-100B-PC-22-NN-NN-N-3-S1BP-A1N-AAA-NNN-NNN ERL100BPC22NNNNN3S1BPA1NAAAANNNNNNN 7. Pressure rating: Compared with the high-pressure oil circuit, the working pressure of the low-pressure oil circuit is lower. It is designed to supply oil to the pump, provide lubrication and return oil to the tank. 8. Fuel tank or tank: The low pressure circuit includes a fuel tank or tank to store enough oil for pump operation. The oil tank may have baffles or other features to promote proper oil circulation and prevent foaming. 9. Filtration: The low-pressure circuit is often equipped with an oil filter to remove pollutants and maintain the cleanliness of the oil. These filters prevent debris or particles from entering the pump, extending its life. 10. Oil level control: Some plunger pump systems include an oil level control mechanism in the low pressure circuit to ensure that the proper oil level is maintained in the tank. This helps prevent pump cavitation and maintains proper lubrication. 11. Oil Cooling: In some applications, the low pressure circuit may contain an oil cooler or heat exchanger to dissipate excess heat in the oil, maintain optimum operating temperature and prevent oil degradation. 12. Oil return pipe: The low-pressure circuit includes an oil return pipe or channel for collecting oil after use in the high-pressure circuit or lubrication system. These return lines return the oil to the reservoir for recirculation and reuse. Always refer to the manufacturer's specifications and guidelines for the specific displacement pump model for detailed design and operation of the high and low pressure circuits. Following these guidelines will ensure safe and efficient performance of piston pumps in hydraulic systems.