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Minimum Allowable Continuous Speed

The minimum allowable continuous speed for pumps refers to the lowest rotational speed (RPM) at which a pump can be operated safely and effectively without causing damage or affecting the life of the pump. 

This specification is important because pumps are usually designed to operate within a specific speed range, and falling below the minimum allowable continuous speed can lead to problems such as cavitation. Cavitation is a physical phenomenon where vapour bubbles form inside the pump when the pressure of the pumped medium is too low. This can damage the pump and reduce pumping efficiency. The standard unit for speed is revolutions per minute (rpm), and the minimum permissible continuous speed is usually given in rpm. It can be found in the pump manufacturer's technical data sheets or operating instructions and serves as an essential working limit to ensure that the pump functions appropriately and reliably. The minimum allowable continuous speed varies from pump to pump, depending on its design and operating requirements. It is critical to follow this specification to avoid pump damage and ensure efficient pumping performance.