Proflow’s Vacuum adjustable safety switches have been designed to,for example sense when vacuum drops below a specific minimum set point and activates vacuum pump, or wired to activate a water/methanol injection when vacuum drops below the set point. This heavy-duty vacuum switch is made of premium materials to serve as a quality replacement.

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Note: Choice of Normally Open or Normally Closed wiring

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Factory Pre Set To  6″hg Will switch on OR off at set point

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Set point is adjustable from 4-8hg +-1hg

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Clockwise raises the set point /Anti Clockwise lowers the set point  – Do not touch the rubber cap as this set screw does not apply 

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