About Air Power Products

Item # Vacuum Relief Valve, Regenerative Blower Accessories

When using blowers in suction applications, vacuum relief valves protect the blowers from operating above maximum vacuum limits by allowing atmospheric air to enter the blower inlet. High vacuum levels will overload the motor, while insufficient airflow may create excessive heat loads on the blower resulting in premature bearing failure. This option should always be used when there is any chance that the inlet of the blower or process could become blocked or dead-headed.

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