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I.E & R.O Units
* A manual bypass is recommended to be installed in applications where a constant flow of water is required downstream during filter servicing. The valve is normally a manually actuated valve, such as a butterfly valve or similar. The manual valve is always recommended when installing a by-pass series unit. Since the by-pass is integral to the filter body, the automatic by-pass will also be isolated during servicing. Note: inlet and outlet isolation valves are also required for manual bypass mode.
* The Controlled Outlet Valve (COV for short) is a valve located downstream of the filter which is controlled by the filter to shut during the rinse cycle. The valve is used in instances where the pump is not capable of providing sufficient flow and pressure for both the rinse cycle and downstream consumption. The valve can be actuated by any of several methods hydraulically, electrically or pneumatically.
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