Automatic Recirculation Valve

Automatic Recirculation Valve

An automatic recirculation valve (ARV) is a control valve that is used to protect centrifugal pumps from damage due to low flow conditions. It is a safety feature that helps to ensure that the minimum flow rate required by the pump is maintained at all times, even if the flow rate drops below a certain level. It is usually installed downstream of the pump discharge line and upstream of any control valves, filters, or other components.

The automatic recirculation valve automatically opens a recirculation line when the flow rate falls below a preset value, which allows a portion of the pump's discharge flow to be recirculated back to the suction side of the pump. This recirculation prevents overheating, cavitation, and other damage to the main pump.

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Branch: Mechanical Engineering

Subject: Fluid Mechanics

Topic: Types of valve

Subtopic: Automatic Recirculation Valve

Learning Objectives

After completing this module, you will be able to:

1. Identify the different components of the automatic recirculation valve.
2. Explain the functions of each part of the automatic recirculation valve.
3. Explain the working of the automatic recirculation valve and the role of its different components.
4. Enlist the applications of automatic recirculation valve.