Concept explainers
Explain the typical uses of flow switches.
Explanation of Solution
A flow switch is a device that can be placed into a pipe so that when an air or liquid flows against a device called paddle, a switch is activated. This switch either closes or opens an electrical contact. The electrical contacts may be wired to energize the motor starter coils, indicating lights or relays. The flow switch is also used to protect the damage of the device and also for protection of cooling circuits. Refer to Figure 12-2 in the textbook where the flow switch consists of both normally open and closed contacts. Flow switches are typically used in petroleum and chemical industries to sound alarm or light when signal flows and to sound warning light when flow stops.
Conclusion:
Thus, the typical uses of flow switches have been explained.
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Chapter 12 Solutions
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