Specifications

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Aqua Pac Voyager
Operations Manual
Introduction
The Aqua Pac Voyager is a revolutionary concept in providing fresh water from seawater for
pleasure boats and for remote residences and encampments. The integrated desalinator
is nominally rated at either 20 or 40 gallons per hour. The APV system is modular in design,
combining required components, whether installed on a Balmar PC-750 or PC-850 DC
Genset or used on its own.
Aqua-Pac desalinator operates on the principle of reverse osmosis. The ions (salt) in
seawater tend to form into clusters, which are many times larger than the individual pure
water molecules. Under pressure, the pure water molecules are forced through a semi-
permeable membrane leaving the ion clusters behind. Although a simplification, this is
basically how reverse osmosis works.
In actual practice, the feed-water is drawn from the source through a coarse strainer,
through three stages of filtration, and delivered to the inlet of a three cylinder reciprocating
pump which is belt or direct-driven by the engine. This "high-pressure pump" forces the
feed-water through the membrane, through a variable restrictor or "RO Pressure Regulator",
and out to discharge. The RO pressure regulator creates the back pressure applied to the
feed-water in the high-pressure vessel.
While ionized feed-water, under pressure, is being forced over the membrane, pure water
is permeated out of the membrane and is called "product water". The product water passes
through a flow meter, which indicates the amount being produced, in gallons per hour.
Feedwater Pump
Pre-Filtration Module
Control Panel & CPM
RO Membranes
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