Spectra Watermakers VENTURA 150, Инструкция по установке и эксплуатации

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During normal operation, the feed water is filtered in two stages. First it passes through a fine
mesh metal sea strainer, which protects the feed pump from foreign materials and sea
creatures. After passing through the feed pump, the feed water passes the filter housings
containing 20 and 5 micron elements, removing very fine particles that could damage the
Clark Pump and shorten membrane life. An additional carbon filter prevents the entrance of
chlorine during fresh water flushing (see next page).
Pre - filter maintenance schedules will vary widely depending on how and where the system is
used. If large amounts of feed water are run through the system over a relatively short period
of time in biologically fertile near
- shore waters, the prefilters will plug up, water production
and quality will drop, and the system pressure will change dramatically. In blue water
conditions the pre
- filters may only need to be changed every week or two.
When operated for only an hour or two a day in inland or near - shore waters, the trapped
plankton will begin to decay in the filters long before the elements plug up. The decaying
plankton and bacteria will cause a rotten egg smell in the product water. This decay will set in
overnight in tropical waters, or after a week or two in higher latitudes. If handled gently and
changed regularly before they get too smelly, filters can be cleaned several times. (See
Maintenance, page 33.)
Our filter element part numbers are FT - FTC - XX, where the last digits indicate the micron
rating. FT - FTC - 5 is for a 5 micron element, FT - FTC - 20 is a 20 micron element. The optional oil/
water separator is FT - FTC - OW.
5 Micron
20 Micron Optional Oil/Water Separator
PREFILTERS