This is a 115 volt electronic, automatic timed, moisture drain with strainer for air compressors, and air tanks. This drain can be set to drain every minute or up to every 45 minutes. The valve can be set to stay open between .5 and 10 seconds. Most commonly, these drains are set to drain for 3 seconds every 30-45 minutes. This valve also has a "Test" button that you can use to manually drain it at any time.
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