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Hydraulic systems using high-viscosity fluids can encounter pressure loss due to various factors. Understanding how to troubleshoot these issues is essential for maintaining system efficiency and preventing costly downtime. This article explores the common causes of pressure loss in hydraulic pumps and offers solutions to diagnose and resolve the problem.
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One of the primary causes of pressure loss in hydraulic systems is fluid viscosity. High-viscosity fluids can lead to increased resistance in the system, reducing flow rates and pressure. When troubleshooting, it’s crucial to assess whether the fluid is appropriate for the operational temperatures and conditions. If the fluid’s viscosity exceeds the ideal range for the pump being used, consider switching to a lower-viscosity alternative or using a heated system to reduce viscosity.

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Another factor to investigate is the hydraulic pump itself. Regular maintenance is essential to ensure the pump is functioning correctly. Check for signs of wear and tear, such as damaged seals or bearings, which could lead to internal leaks. Additionally, verify that the pump is appropriately sized for the application. An undersized pump may struggle to maintain pressure, especially with high-viscosity fluids.
Contamination is another common culprit behind pressure loss. High-viscosity fluids are more susceptible to the effects of contaminants, which can lead to increased wear, clogging of filters, and restricted flow. Regularly inspect and change filters according to the manufacturer’s recommendations, and implement a proper fluid filtration system to minimize contaminants entering the hydraulic circuit.