Overview of Cavitation Mechanism in Piston Pump Valve Plate and Measures to Alleviate Cavitation

Cavitation in hydraulic piston pump valve plates is primarily caused by rapid pressure changes in low pressure areas and in the fluid passages inside the pump. Cavitation occurs when the pressure drops below the vapor pressure of the hydraulic oil, resulting in the formation of vapor bubbles or cavities. When these cavities enter areas of high pressure, they can collapse or implode, causing damage and corrosion to the valve plate and other pump components. The following is a general overview of the cavitation mechanism in the valve plate: 1. Pressure drop: Cavitation usually occurs in areas where the hydraulic plunger pump has a large pressure drop, such as the valve plate. The valve plate is responsible for controlling the flow of hydraulic oil between the different chambers or ports in the pump. 2. Low pressure area: When the fluid passes through the valve plate, it may encounter a low pressure area. These low pressure areas may arise due to fluid acceleration, flow restriction, or change in flow direction. Cavitation is initiated when the pressure drops below the vapor pressure of the hydraulic oil. 3. Bubble formation: In the low-pressure area, the pressure of the hydraulic oil drops. The drop in pressure causes the fluid to evaporate, forming small bubbles or cavities within the fluid. 90-L-180-KP-5-BC-80-T-C-F1-H-03-FAC-21-21-24 90L180KP5BC80TCF1H03FAC212124 90L180-KP-5-BC-80-T-C-F1-H-03-FAC-21-21-24 90L180KP5BC80TCF1H03FAC212124 90-L-180-KP-5-BC-80-T-C-C8-J-03-FAC-35-35-24 90L180KP5BC80TCC8J03FAC353524 90L180-KP-5-BC-80-T-C-C8-J-03-FAC-35-35-24 90L180KP5BC80TCC8J03FAC353524 90-L-180-KP-5-BC-80-S-M-F1-J-03-FAC-32-32-24 90L180KP5BC80SMF1J03FAC323224 90L180-KP-5-BC-80-S-M-F1-J-03-FAC-32-32-24 90L180KP5BC80SMF1J03FAC323224 90-L-180-KP-5-BC-80-S-C-C8-H-03-FAC-32-32-24 90L180KP5BC80SCC8H03FAC323224 90L180-KP-5-BC-80-S-C-C8-H-03-FAC-32-32-24 90L180KP5BC80SCC8H03FAC323224 90-L-180-KP-5-BB-80-T-C-C8-H-03-FAC-35-35-24 90L180KP5BB80TCC8H03FAC353524 90L180-KP-5-BB-80-T-C-C8-H-03-FAC-35-35-24 90L180KP5BB80TCC8H03FAC353524 90-L-180-KP-5-AB-80-T-M-F1-J-03-FAC-38-38-24 90L180KP5AB80TMF1J03FAC383824 90L180-KP-5-AB-80-T-M-F1-J-03-FAC-38-38-24 90L180KP5AB80TMF1J03FAC383824 90-L-180-KP-5-AB-80-T-M-C8-J-03-FAC-35-35-24 90L180KP5AB80TMC8J03FAC353524 90L180-KP-5-AB-80-T-M-C8-J-03-FAC-35-35-24 90L180KP5AB80TMC8J03FAC353524 90-L-180-KP-5-AB-80-T-C-F1-H-03-FAC-35-35-24 90L180KP5AB80TCF1H03FAC353524 90L180-KP-5-AB-80-T-C-F1-H-03-FAC-35-35-24 90L180KP5AB80TCF1H03FAC353524 90-L-180-KP-5-AB-80-T-C-C8-J-03-FAC-35-35-24 90L180KP5AB80TCC8J03FAC353524 90L180-KP-5-AB-80-T-C-C8-J-03-FAC-35-35-24 90L180KP5AB80TCC8J03FAC353524 90-L-180-KP-2-NN-80-T-M-F1-H-03-FAC-35-35-24 90L180KP2NN80TMF1H03FAC353524 90L180-KP-2-NN-80-T-M-F1-H-03-FAC-35-35-24 90L180KP2NN80TMF1H03FAC353524 4. Bubble movement: Bubbles move to areas of higher pressure as the fluid flows. When air bubbles move to areas of higher pressure, such as in a valve plate or other pump components, the increased pressure can cause the air bubbles to rupture or implode. 5. Bubble bursting: The bursting or implosion of a bubble creates a shock wave and high-intensity localized pressure. These pressure waves can exert an erosive force on the disc surface, which over time can lead to pitting, corrosion and material damage. 6. Effects of cavitation: Cavitation can have multiple adverse effects on the valve plate and the overall performance of the hydraulic plunger pump. It results in increased noise, reduced pump efficiency, reduced flow, reduced pressure generation, and accelerated wear and damage to valve plates and other pump components. 7. Flow turbulence: Turbulent flow conditions may cause cavitation in the valve plate. Sudden changes in flow direction or restrictions in fluid passage create turbulence, resulting in localized areas of low pressure. These turbulent regions are more prone to cavitation. 8. Valve plate design: The design and structure of the valve plate play an important role in preventing or mitigating cavitation. Features such as optimized flow paths, smoother surfaces and careful valve positioning help reduce pressure drop and minimize the risk of cavitation. 90-L-180-KP-2-NN-80-T-C-F1-H-03-FAC-35-35-24 90L180KP2NN80TCF1H03FAC353524 90L180-KP-2-NN-80-T-C-F1-H-03-FAC-35-35-24 90L180KP2NN80TCF1H03FAC353524 90-L-180-KP-2-NN-80-D-M-F1-L-05-FAC-32-32-32 90L180KP2NN80DMF1L05FAC323232 90-L-180-KP-2-EG-80-T-C-C8-J-00-FAC-42-42-24 90L180KP2EG80TCC8J00FAC424224 90L180-KP-2-EG-80-T-C-C8-J-00-FAC-42-42-24 90L180KP2EG80TCC8J00FAC424224 90-L-180-KP-2-EF-80-D-M-C8-L-05-FAC-32-14-32 90L180KP2EF80DMC8L05FAC321432 90-L-180-KP-2-CD-80-T-C-F1-J-03-FAC-42-14-24 90L180KP2CD80TCF1J03FAC421424 90L180-KP-2-CD-80-T-C-F1-J-03-FAC-42-14-24 90L180KP2CD80TCF1J03FAC421424 90-L-180-KP-2-CD-80-T-C-F1-H-03-FAC-35-35-24 90L180KP2CD80TCF1H03FAC353524 90L180-KP-2-CD-80-T-C-F1-H-03-FAC-35-35-24 90L180KP2CD80TCF1H03FAC353524 90-L-180-KP-2-CD-80-T-C-C8-J-00-FAC-42-42-24 90L180KP2CD80TCC8J00FAC424224 90L180-KP-2-CD-80-T-C-C8-J-00-FAC-42-42-24 90L180KP2CD80TCC8J00FAC424224 90-L-180-KP-2-BC-80-T-C-F1-J-03-FAC-42-14-24 90L180KP2BC80TCF1J03FAC421424 90L180-KP-2-BC-80-T-C-F1-J-03-FAC-42-14-24 90L180KP2BC80TCF1J03FAC421424 90-L-180-KP-2-BC-80-T-C-F1-J-02-FAC-45-45-24 90L180KP2BC80TCF1J02FAC454524 90L180-KP-2-BC-80-T-C-F1-J-02-FAC-45-45-24 90L180KP2BC80TCF1J02FAC454524 90-L-180-KP-2-BC-80-D-M-C8-L-05-FAC-32-32-32 90L180KP2BC80DMC8L05FAC323232 90-L-180-KP-1-NN-80-T-C-F1-H-03-NNN-32-32-24 90L180KP1NN80TCF1H03NNN323224 90L180-KP-1-NN-80-T-C-F1-H-03-NNN-32-32-24 90L180KP1NN80TCF1H03NNN323224 90-L-180-KP-1-NN-80-S-C-F1-H-03-FAC-26-26-24 90L180KP1NN80SCF1H03FAC262624 9. Fluid Velocity: The velocity of hydraulic oil passing through the valve plate affects the possibility of cavitation. Higher fluid velocities increase the likelihood of cavitation due to pressure drop and turbulence. Proper size and design of the valve plate should take fluid velocity into account to minimize the risk of cavitation. 10. Operating conditions: Cavitation in the valve plate may be affected by various operating conditions, such as system pressure, temperature and fluid characteristics. Higher system pressures, higher temperatures, and lower vapor pressure fluids increase the likelihood of cavitation. Operating a hydraulic piston pump within recommended parameters is important to reduce the occurrence of cavitation. 11. Fluid condition: The condition and quality of hydraulic oil will affect the occurrence of cavitation. Contaminants in the fluid, such as air or solid particles, promote the formation of air bubbles and exacerbate cavitation. Regular fluid maintenance, including filtration and degassing, can help mitigate these effects. 12. Material selection: The selection of valve plate material is very important to withstand the erosive force caused by cavitation. Materials with good erosion and cavitation resistance, such as hardened steel or special coatings, can help extend the life of the valve plate and reduce the effects of cavitation. 90L180-KP-1-NN-80-S-C-F1-H-03-FAC-26-26-24 90L180KP1NN80SCF1H03FAC262624 90-L-180-KP-1-EG-80-S-C-F1-J-00-FAC-42-42-24 90L180KP1EG80SCF1J00FAC424224 90L180-KP-1-EG-80-S-C-F1-J-00-FAC-42-42-24 90L180KP1EG80SCF1J00FAC424224 90-L-180-KP-1-EF-80-S-C-C8-J-00-FAC-42-42-24 90L180KP1EF80SCC8J00FAC424224 90L180-KP-1-EF-80-S-C-C8-J-00-FAC-42-42-24 90L180KP1EF80SCC8J00FAC424224 90-L-180-KP-1-DE-80-T-C-F1-J-00-FAC-42-42-24 90L180KP1DE80TCF1J00FAC424224 90L180-KP-1-DE-80-T-C-F1-J-00-FAC-42-42-24 90L180KP1DE80TCF1J00FAC424224 90-L-180-KP-1-DE-80-T-C-C8-J-05-FAC-35-35-24 90L180KP1DE80TCC8J05FAC353524 90-L-180-KP-1-DE-80-T-C-C8-H-03-FAC-36-36-24 90L180KP1DE80TCC8H03FAC363624 90L180-KP-1-DE-80-T-C-C8-H-03-FAC-36-36-24 90L180KP1DE80TCC8H03FAC363624 90-L-180-KP-1-DE-80-T-C-C8-H-00-FAC-36-36-24 90L180KP1DE80TCC8H00FAC363624 90L180-KP-1-DE-80-T-C-C8-H-00-FAC-36-36-24 90L180KP1DE80TCC8H00FAC363624 90-L-180-KP-1-CD-80-T-M-F1-J-03-FAC-23-23-24 90L180KP1CD80TMF1J03FAC232324 90L180-KP-1-CD-80-T-M-F1-J-03-FAC-23-23-24 90L180KP1CD80TMF1J03FAC232324 90-L-180-KP-1-CD-80-T-M-C8-H-03-FAC-38-38-24 90L180KP1CD80TMC8H03FAC383824 90L180-KP-1-CD-80-T-M-C8-H-03-FAC-38-38-24 90L180KP1CD80TMC8H03FAC383824 90-L-180-KP-1-CD-80-T-C-F1-J-03-FAC-35-38-24 90L180KP1CD80TCF1J03FAC353824 90L180-KP-1-CD-80-T-C-F1-J-03-FAC-35-38-24 90L180KP1CD80TCF1J03FAC353824 90-L-180-KP-1-CD-80-T-C-F1-H-03-FAC-35-35-24 90L180KP1CD80TCF1H03FAC353524 90L180-KP-1-CD-80-T-C-F1-H-03-FAC-35-35-24 90L180KP1CD80TCF1H03FAC353524 To mitigate cavitation in the valve plate of a hydraulic piston pump, various measures can be taken: 1. Proper fluid selection: Selecting a hydraulic fluid with the proper viscosity and vapor pressure characteristics can help minimize the risk of cavitation. 2. Pressure regulation: Ensuring proper pressure regulation within pumps and hydraulic systems helps prevent excessive pressure drops and reduces the potential for cavitation. 3. Optimized design: The correct design of the valve plate, including the shape and size of the flow channel, can help minimize pressure drop and promote smooth flow, reducing the possibility of cavitation. 4. Maintenance and Inspections: Regular maintenance and inspections of hydraulic piston pumps can help identify early signs of cavitation so that parts can be repaired or replaced in time to prevent further damage. Addressing cavitation in valve plates requires a comprehensive approach that considers factors such as pump design, operating conditions, fluid properties, and maintenance practices. Manufacturer's guidelines, expert advice, and system-specific considerations should be considered to effectively manage cavitation and ensure optimal performance and service life of your hydraulic piston pump.

This article is published by the official website of Baolilai Hydraulics, please contact the author and indicate the source for reprinting:https://www.baolilai-pump.cn/news/856.html

Tel:13600066458