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Defender Support
Pump Throttle Valve
This valve is installed as a standard feature on the Defender reverse osmosis system. It provides an adjustment for pump pressure, which will vary as the required system pres- sure changes. As the feed water temperature decreases, and / or the feed water TDS increases, the system will require a higher operating pressure to produce the specified permeate flow. For example ; A system installed in Florida may provide the specified permeate flow at 100 PSI ; however the same system installed in Maine with much colder feed water may require 150 PSI to produce the same amount of permeate.
CAUTION! Never exceed 150 PSI