The vacuum system in the provided reference operates at a pressure value of approximately 10-2 Torr. This system utilizes a two-stage rotary vane pump to achieve this level of vacuum.
Detailed Explanation:
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Vacuum System Components and Operation: The vacuum system described includes a two-stage rotary vane pump which is capable of achieving a vacuum in the range of 10-2 Torr. This range is considered a "rough" vacuum, suitable for many laboratory applications where the vacuum requirement is not extremely deep. The system also includes a vacuum gauge controller with a vacuum gauge, electro-pneumatic vacuum valve, vacuum air release, and leak check valves. These components ensure the system can maintain and monitor the required vacuum levels effectively.
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Pressure Range and Its Significance: The pressure of 10-2 Torr is significantly lower than atmospheric pressure, which is about 760 Torr at sea level. This level of vacuum is achieved by removing a substantial amount of gas molecules from the enclosed space, reducing the pressure. In the context of the system described, this level of vacuum is suitable for operations that do not require extremely low pressures, such as some types of vacuum filtration, liquid aspiration, and other laboratory processes.
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Comparison with Other Vacuum Systems: The reference also mentions other types of vacuum systems such as low, medium, and high vacuum systems used in vacuum heat treatment furnaces. These systems operate at different pressure ranges, with high vacuum systems reaching pressures as low as 1×10^-7 Pa. The system in question, operating at 10-2 Torr, would be considered a low to medium vacuum system in the context of these applications.
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Practical Applications and Considerations: The practical application of this vacuum system would be in environments where moderate vacuum levels are sufficient for the process requirements. For instance, in laboratory settings where vacuum is used to facilitate chemical reactions or to move liquids, a vacuum of 10-2 Torr would be adequate. The system's design, which includes various valves and controllers, ensures that the vacuum can be precisely controlled and maintained, which is crucial for the efficiency and safety of the processes being carried out.
In summary, the vacuum system operates at a pressure of approximately 10-2 Torr, which is suitable for a range of laboratory and industrial processes that require moderate vacuum levels. The system's components and design allow for effective control and maintenance of this vacuum level.
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