Although piston pump and plunger pump is reciprocating positive displacement pump, their differing internal structures make them suitable for distinct operating condition. When selecting an application, key considerations include operating principles, performance characteristics, compatible media, and operational scenarios.   1. Main differences   Characteristic Piston pump Plunger pump Component Piston Plunger (Ceramic Plunger/Coated Plunger) Pressure Medium and low pressure, suitable for outlet pressure ≤20 MPa High pressure and ultra-high pressure, with maximum pressure reaching up to 280 MPa Flow Suitable for projects requiring high flow rates Suitable for projects requiring low to medium flow rates but high pressure. Medium Suitable for pumping mud, clean water, and corrosive liquids Ceramic Plunger: Suitable for pumping various liquid media requiring wear resistance, corrosion resistance, and high-temperature resistance. Coated Plunger: Suitable for pumping high-temperature, high-pressure, contaminated, and corrosive media. Seal life Seal friction, relatively short service life Seals are easy to adjust and replace, with a relatively long service life.   2. Piston pump Due to its structural characteristics, piston pumps are generally suitable for medium and low pressure scenarios, especially when the outlet pressure does not exceed 20Mpa. It performs well. It can meet the needs of projects with large flow rates, so it is more suitable for working conditions that require rapid liquid delivery. In addition, piston pumps have strong adaptability to media and can operate stably whether it is mud, clean water or corrosive liquids. However, due to the large friction between the piston and the seal, the seal life is relatively short, which may increase maintenance frequency and use costs. Piston pumps are generally suitable for drilling and mud transportation or some scenarios that require rapid liquid delivery but do not have high pressure requirements. Therefore, when selecting a piston pump, it is necessary to comprehensively consider the flow requirements, medium characteristics and the economy of long-term operation.     3. Plunger pump Due to its unique structural design, the plunger pump can withstand higher pressures and is suitable for high-pressure and ultra-high-pressure scenarios, with a maximum pressure of up to 280Mpa. Compared with piston pumps, plunger pumps are more suitable for working conditions with medium and low flow rates but requiring high pressure. Its core component, the plunger, is usually made of ceramic or coated materials, and has excellent wear resistance, corrosion resistance and high temperature resistance. Therefore, it can be widely used in conveying various complex media, including high-temperature, impurity-containing or highly corrosive liquids. In addition, the seal design of the plunger pump is easy to adjust and replace, and the seal life is relatively long, thereby reducing maintenance costs and downtime. Plunger pumps are generally suitable for industrial fields that require high-pressure output, such as oil extraction, chemical production, and high-pressure cleaning. When selecting a plunger pump, it is necessary to focus on the medium characteristics, system pressure requirements, and long-term operation reliability to ensure that the equipment can work stably in harsh environments.     Elephant Machinery specializes in reciprocating pump products, which is categorized into piston pump and plunger pump. The hydraulic end configurations include triplex pump, quintuplex pump, and seven-cylinder pump.Our products feature high output pressure, extended service life of wear parts, and stable performance. We offer the best single pumps and complete pump station solutions, as well as customized solutions tailored to each customer's needs, ensuring every solution is to be the optimal and most economical choice. If you require reciprocating pumps, feel free to contact us anytime!