The gear oil pump equipped with a safety valve is primarily designed to prevent pipeline blockage. This type of pump has a protective function that helps avoid damage caused by excessive pressure buildup. On the other hand, gear oil pumps without a safety valve are typically high-pressure, supercharged, or high-temperature models. The main reason for this distinction is that these pumps are engineered to handle extreme conditions and often require pressure relief mechanisms during operation.
When handling high-viscosity media, the resistance in the outlet piping can become very significant due to the thick nature of the fluid. In such cases, using a gear oil pump with a safety valve may lead to frequent opening of the safety valve, which disrupts normal operation. Therefore, it's generally recommended to use a gear oil pump without a safety valve when transporting high-viscosity fluids or when pressurization is required. These pumps are designed to manage high pressure without the need for a safety valve, as they can operate without backflow or pressure unloading.
Additionally, when dealing with high-temperature media, the risk of vaporization increases. If a gear oil pump with a safety valve is used and the valve does not seal properly, air leakage can occur. This can cause the pump to lose suction capability and fail to draw in the medium. For this reason, it's advisable to use a gear oil pump without a safety valve when transporting high-temperature fluids. A separate safety valve can be installed on the pipeline if needed.
In summary, the choice between a gear oil pump with or without a safety valve depends on the specific application, including the viscosity and temperature of the medium being transported. Pumps with safety valves are ideal for general use where pressure fluctuations are common, while those without are better suited for high-pressure, high-viscosity, or high-temperature environments. Proper selection ensures optimal performance and longevity of the equipment.
Editor: Hardware Business Network Information Center
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