The main difference between the walking mechanical piston pump and the stationary mechanical piston pump is their reciprocating mechanism and the movement of the plunger. 1. Walking Mechanical Piston Pump: In a walking mechanical piston pump, the plunger or piston moves in a "walking" motion. This means that each plunger moves in a linear reciprocating sequence, one after the other. Walking motion is achieved by using a walking beam or similar mechanism where the reciprocating motion of one plunger is translated into the motion of the next plunger in a straight line. Traveling mechanical piston pumps are commonly used in oil and gas production, drilling, and other applications requiring high pressure pumping. 2. Stationary Mechanical Piston Pump: In a stationary mechanical piston pump, the plunger or piston moves in a fixed position, usually in a linear reciprocating motion. The plunger is directly connected to a crankshaft or similar mechanism that converts rotary motion into linear reciprocating motion. Stationary mechanical piston pumps are used in a wide variety of industries such as high pressure cleaning, water treatment, chemical dosing and industrial processes. ER-L-130B-BS-31-20-NN-N-3-S4AP-A1N-AAA-NNN-NNN ERL130BBS3120NNN3S4APA1NAAANNNNNN ER-L-130B-BS-31-20-NN-N-3-S4AP-A1N-NNN-NNN-NNN ERL130BBS3120NNN3S4APA1NNNNNNNNNNNN ER-L-130B-BS-31-20-NN-N-3-S4BP-A1N-AAA-NNN-NNN ERL130BBS3120NNN3S4BPA1NAAANNNNNN ER-L-130B-BS-31-20-NN-N-3-S4BP-A1N-NNN-NNN-NNN ERL130BBS3120NNN3S4BPA1NNNNNNNNNNNN ER-L-130B-BS-31-20-NN-N-3-S4CP-A1N-AAA-NNN-NNN ERL130BBS3120NNN3S4CPA1NAAANNNNNN ER-L-130B-BS-31-20-NN-N-3-S4CP-A1N-NNN-NNN-NNN ERL130BBS3120NNN3S4CPA1NNNNNNNNNNNN ER-L-130B-BS-31-20-NN-N-3-S4NP-A1N-AAA-NNN-NNN ERL130BBS3120NNN3S4NPA1NAAANNNNNN ER-L-130B-BS-31-20-NN-N-3-S4NP-A1N-NNN-NNN-NNN ERL130BBS3120NNN3S4NPA1NNNNNNNNNNNN ER-L-130B-BS-31-20-NN-N-3-S4VP-A1N-NNN-NNN-NNN ERL130BBS3120NNN3S4VPA1NNNNNNNNNNNN ER-L-130B-BS-31-24-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL130BBS3124NNN3S1CPA1NNNNNNNNNNNN ER-L-130B-BS-31-25-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL130BBS3125NNN3S1NPA1NNNNNNNNNNNN ER-L-130B-BS-31-25-NN-N-3-S4WP-A1N-NNN-NNN-NNN ERL130BBS3125NNN3S4WPA1NNNNNNNNNNNN ER-L-130B-BS-31-28-NN-N-3-S1NL-A1N-AAA-NNN-NNN ERL130BBS3128NNN3S1NLA1NAAANNNNNN ER-L-130B-BS-31-30-NN-N-3-K5NP-A1N-AAA-NNN-NNN ERL130BBS3130NNN3K5NPA1NAAANNNNNN ER-L-130B-CK-24-20-NN-E-3-S1BP-A1N-AAA-NNN-NNN ERL130BCK2420NNE3S1BPA1NAAANNNNNN ER-L-130B-DK-31-20-NN-F-3-S1NL-A1N-NNN-NNN-NNN ERL130BDK3120NNF3S1NLA1NNNNNNNNNNNN ER-L-130B-FA-24-20-NN-N-3-S1NL-A1N-AAA-NNN-NNN ERL130BFA2420NNN3S1NLA1NAAANNNNNN ER-L-130B-FF-25-20-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL130BFF2520NNN3S1BPA1NNNNNNNNNNNN ER-L-130B-FF-25-20-NN-N-3-S1RP-A1N-NNN-NNN-NNN ERL130BFF2520NNN3S1RPA1NNNNNNNNNNNN ER-L-130B-FF-25-20-NN-N-3-S4CP-A1N-NNN-NNN-NNN ERL130BFF2520NNN3S4CPA1NNNNNNNNNNNN ER-L-130B-FG-28-20-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL130BFG2820NNN3S1BPA1NNNNNNNNNN Main difference: 1. Reciprocating motion: The walking type mechanical plunger pump is characterized by walking motion, each plunger moves sequentially, while the fixed type mechanical plunger pump is characterized by fixed reciprocating motion, and all plungers move simultaneously. 2. Pumping mechanism: In a walking mechanical plunger pump, the reciprocating motion of one plunger is transmitted to the next plunger through a walking beam or similar mechanism. In a stationary mechanical piston pump, the piston is directly connected to a crankshaft or similar mechanism for linear reciprocating motion. 3. Application: Walking mechanical plunger pumps are often used in oil and gas production, drilling, and other heavy-duty applications that require high-pressure pumping. Stationary mechanical piston pumps are used in various industries for tasks such as high pressure cleaning, water treatment and chemical metering. 4. Efficiency and performance: The efficiency and performance of the two types of pumps may vary depending on design, construction and specific application requirements. However, walk-behind mechanical plunger pumps are often favored due to their continuous plunger action and their ability to handle high pressure and high flow applications. 5. Compactness: Compared with stationary mechanical piston pumps, walking mechanical piston pumps tend to be more compact in size. The walking motion allows for a more streamlined design, making them suitable for applications where space is limited. ER-L-130B-FN-31-20-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL130BFN3120NNN3S1BPA1NNNNNNNNNNNN ER-L-130B-LB-14-20-NN-F-3-S1BP-A1N-AAA-NNN-NNN ERL130BLB1420NNF3S1BPA1NAAANNNNNN ER-L-130B-LB-17-15-NN-N-3-S1AP-A1N-AAA-NNN-NNN ERL130BLB1715NNN3S1APA1NAAANNNNNN ER-L-130B-LB-17-15-NN-N-3-S1RP-A1N-AAA-NNN-NNN ERL130BLB1715NNN3S1RPA1NAAANNNNNN ER-L-130B-LB-18-17-NN-F-3-S2AP-A1N-AAA-NNN-NNN ERL130BLB1817NNF3S2APA1NAAANNNNNN ER-L-130B-LB-21-11-NN-N-3-S4NL-A1N-AAA-NNN-NNN ERL130BLB2111NNN3S4NLA1NAAANNNNNN ER-L-130B-LB-21-14-NN-N-3-S4BP-A1N-NNN-NNN-NNN ERL130BLB2114NNN3S4BPA1NNNNNNNNNNNN ER-L-130B-LB-21-20-NN-N-3-S2CP-A1N-AAA-NNN-NNN ERL130BLB2120NNN3S2CPA1NAAANNNNNN ER-L-130B-LB-24-20-NN-N-3-K5NL-A1N-AAA-NNN-NNN ERL130BLB2420NNN3K5NLA1NAAANNNNNN ER-L-130B-LB-24-23-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL130BLB2423NNN3S1NLA1NNNNNNNNNNNN ER-L-130B-LB-25-20-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL130BLB2520NNN3K5NPA1NNNNNNNNNNNN ER-L-130B-LB-25-20-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL130BLB2520NNN3S1NPA1NNNNNNNNNNNN ER-L-130B-LB-25-20-NN-N-3-S4BP-A1N-NNN-NNN-NNN ERL130BLB2520NNN3S4BPA1NNNNNNNNNNNN ER-L-130B-LB-25-20-NN-N-3-S4CP-A1N-NNN-NNN-NNN ERL130BLB2520NNN3S4CPA1NNNNNNNNNNNN ER-L-130B-LB-25-20-NN-N-3-S4NL-A1N-AAA-NNN-NNN ERL130BLB2520NNN3S4NLA1NAAANNNNNN ER-L-130B-LB-26-20-NN-F-3-S2BP-A1N-NNN-NNN-NNN ERL130BLB2620NNF3S2BPA1NNNNNNNNNNNN ER-L-130B-LB-26-20-NN-N-3-S2BP-A1N-NNN-NNN-NNN ERL130BLB2620NNN3S2BPA1NNNNNNNNNNNN ER-L-130B-LB-26-20-NN-N-3-S2NP-A1N-NNN-NNN-NNN ERL130BLB2620NNN3S2NPA1NNNNNNNNNNNN ER-L-130B-LS-10-20-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL130BLS1020NNN3S1NLA1NNNNNNNNNNNN ER-L-130B-LS-14-20-NN-N-3-K5NL-A1N-AAA-NNN-NNN ERL130BLS1420NNN3K5NLA1NAAANNNNNN ER-L-130B-LS-14-28-NN-N-3-S1NL-A1N-AAA-NNN-NNN ERL130BLS1428NNN3S1NLA1NAAANNNNNN 6. Stroke length: Fixed mechanical piston pumps usually have a fixed stroke length determined by the crankshaft mechanism. On the other hand, the walking mechanical plunger pump can have an adjustable stroke length, which can be flexibly adapted to different flow requirements. 7. Maintenance and Serviceability: Due to the complexity of a walking beam or similar mechanism, a walking mechanical piston pump may require more maintenance. Additional moving parts in the running gear may require periodic lubrication and inspection. Stationary mechanical piston pumps are simpler in design, generally require less maintenance, and are relatively easier to repair. 8. Speed control: The walking mechanical plunger pump can more precisely control the speed and stroke length of a single plunger. This level of control allows for enhanced flow regulation and adaptability to varying process conditions. Stationary mechanical piston pumps typically operate at a fixed speed and stroke length, limiting their ability to dynamically adjust flow. 9. Cost: Generally speaking, compared with stationary mechanical piston pumps, the manufacturing and maintenance costs of walking mechanical piston pumps are higher. The added complexity and running gear results in higher production costs and possibly increased maintenance costs. 10. Pressure pulsation: Compared with stationary mechanical piston pumps, walking mechanical piston pumps tend to exhibit lower pressure pulsation. The sequential operation of the plungers in a stepper pump helps to smooth flow and reduce pressure fluctuations. This is beneficial for applications requiring a consistent pressure output. 11. Flow control: Walking mechanical plunger pumps provide greater flexibility in flow control. By adjusting the stroke length or the number of movable plungers, the flow rate can be adjusted to meet the process requirements. This versatility makes them suitable for applications requiring precise flow control, such as metering or dosing applications. ER-L-130B-LS-14-30-NN-N-3-S1AP-A1N-NNN-NNN-NNN ERL130BLS1430NNN3S1APA1NNNNNNNNNNNN ER-L-130B-LS-15-20-NN-N-3-S2BP-A1N-NNN-NNN-NNN ERL130BLS1520NNN3S2BPA1NNNNNNNNNNNN ER-L-130B-LS-16-20-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL130BLS1620NNN3S1CPA1NNNNNNNNNNNN ER-L-130B-LS-17-17-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL130BLS1717NNN3S1NLA1NNNNNNNNNNNN ER-L-130B-LS-17-20-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL130BLS1720NNN3S1NPA1NNNNNNNNNN ER-L-130B-LS-17-30-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL130BLS1730NNN3K5NPA1NNNNNNNNNNNN ER-L-130B-LS-18-20-NN-N-3-K5NP-A1N-NNN-NNN-NNN ERL130BLS1820NNN3K5NPA1NNNNNNNNNN ER-L-130B-LS-18-20-NN-N-3-S1CP-A1N-AAA-NNN-NNN ERL130BLS1820NNN3S1CPA1NAAANNNNNN ER-L-130B-LS-18-20-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL130BLS1820NNN3S1CPA1NNNNNNNNNNNN ER-L-130B-LS-18-20-NN-N-3-S1NP-A1N-NNN-NNN-NNN ERL130BLS1820NNN3S1NPA1NNNNNNNNNNNN ER-L-130B-LS-18-20-NN-N-3-S2AP-A1N-NNN-NNN-NNN ERL130BLS1820NNN3S2APA1NNNNNNNNNNNN ER-L-130B-LS-18-20-NN-N-3-S2RP-A1N-AAA-NNN-NNN ERL130BLS1820NNN3S2RPA1NAAANNNNNN ER-L-130B-LS-18-32-NN-N-3-K5RP-A1N-NNN-NNN-NNN ERL130BLS1832NNN3K5RPA1NNNNNNNNNNNN ER-L-130B-LS-19-20-NN-E-3-S1NL-A1N-NNN-NNN-NNN ERL130BLS1920NNE3S1NLA1NNNNNNNNNNNN ER-L-130B-LS-19-20-NN-N-3-S1NL-A1N-NNN-NNN-NNN ERL130BLS1920NNN3S1NLA1NNNNNNNNNNNN ER-L-130B-LS-19-20-NN-N-3-S4CP-A1N-NNN-NNN-NNN ERL130BLS1920NNN3S4CPA1NNNNNNNNNNNN ER-L-130B-LS-19-20-NN-N-3-S4NL-A1N-NNN-NNN-NNN ERL130BLS1920NNN3S4NLA1NNNNNNNNNNNN ER-L-130B-LS-20-20-NN-N-3-K5CP-A1N-AAA-NNN-NNN ERL130BLS2020NNN3K5CPA1NAAANNNNNN ER-L-130B-LS-20-20-NN-N-3-K5WP-A1N-AAA-NNN-NNN ERL130BLS2020NNN3K5WPA1NAAANNNNNN ER-L-130B-LS-20-20-NN-N-3-S1BP-A1N-NNN-NNN-NNN ERL130BLS2020NNN3S1BPA1NNNNNNNNNNNN ER-L-130B-LS-20-20-NN-N-3-S1CP-A1N-NNN-NNN-NNN ERL130BLS2020NNN3S1CPA1NNNNNNNNNNNN 12. Power consumption: Compared with stationary mechanical piston pumps, walking mechanical piston pumps generally require more electricity to operate. Additional mechanical parts and sequential movement of the plunger result in higher power consumption. This should be considered in applications where energy efficiency is a concern. 13. Vibration and noise: Due to the complex motion of the walking beam mechanism, the walking mechanical plunger pump may exhibit high levels of vibration and noise. Stationary mechanical piston pumps are simple in design and produce less vibration and noise during operation. 14. Suitable for high-viscosity fluids: Due to its continuous plunger operation, walking mechanical plunger pumps are generally more suitable for pumping high-viscosity fluids. Sequential motion helps handle thicker liquids more efficiently. Stationary mechanical piston pumps can be challenged with higher viscosity fluids due to the simultaneous operation of all pistons. When choosing between a traveling mechanical piston pump and a stationary mechanical piston pump, it is important to consider these factors along with the specific requirements of the application. Each type has its own advantages and considerations, and choosing the right pump will depend on factors such as flow control needs, pressure pulsation requirements, power consumption constraints, and the nature of the fluid being pumped.