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What is the function of a pulsation plug in a 9013 pressure switch?

Product Line:
Square D Pressure Switches

Environment:
Products sold and used in the United States

Resolution:
The pulsation plug slows the flow of fluid to the diaphragm of the pressure switch to reduce the surge rate of change. The switch with plug installed senses change over longer intervals and does not respond to spikes.

 
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