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<p>This document specifies construction requirements and test methods for pressurized granulated media filters, hereinafter referred to as media filters, intended for operation in agricultural irrigation systems.</p>
<p>It is applicable to both manual cleaning media filters and automatic self-cleaning media filters, used as single unit or in batteries (two or more units working in parallel).</p>
<p>This document covers the operation and performance of a media filter, together with all related valves, back flushing mechanism, underdrains, manifolds and other related accessories necessary for the operation of the filter.</p>
<p>This document is applicable to three configurations of a filter.</p>
<p>a) An empty filter vessel (tank) housing.</p>
<p>b) A filter vessel filled with media filter material(s), complete with valves, connections, air release and/or other accessories. This configuration, when connected to and controlled by a flushing control device, is a complete operating single filter unit, usually positioned as a part of a filtration station.</p>
<p>c) A filtration station, called "filter battery".</p>
<p>Annex A provides information on types of irrigation media filters.</p>
<p>Annex B provides information on granulated media.</p>
Reģistrācijas numurs (WIID)
68953
Darbības sfēra
<p>This document specifies construction requirements and test methods for pressurized granulated media filters, hereinafter referred to as media filters, intended for operation in agricultural irrigation systems.</p>
<p>It is applicable to both manual cleaning media filters and automatic self-cleaning media filters, used as single unit or in batteries (two or more units working in parallel).</p>
<p>This document covers the operation and performance of a media filter, together with all related valves, back flushing mechanism, underdrains, manifolds and other related accessories necessary for the operation of the filter.</p>
<p>This document is applicable to three configurations of a filter.</p>
<p>a) An empty filter vessel (tank) housing.</p>
<p>b) A filter vessel filled with media filter material(s), complete with valves, connections, air release and/or other accessories. This configuration, when connected to and controlled by a flushing control device, is a complete operating single filter unit, usually positioned as a part of a filtration station.</p>
<p>c) A filtration station, called "filter battery".</p>
<p>Annex A provides information on types of irrigation media filters.</p>
<p>Annex B provides information on granulated media.</p>
