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Low Pressure Reverse Osmosis System
(ROS)
Reverse
Osmosis System spec sheet (PDF) [161 Kb]
To understand reverse osmosis, you must first understand osmosis. During
natural osmosis, water flows from a less concentrated solution through
a semi-permeable membrane to a more concentrated saline solution until
concentrations on both sides of the membrane are equal.
Reverse Osmosis
Reverse osmosis requires external pressure to reverse natural osmotic
flow. As pressure is applied to the saline solution, water flows from
a more concentrated saline solution through the semi-permeable membrane.
Reverse Osmosis Membrane
A reverse osmosis membrane has a thin microporous surface that rejects
impurities, but allows water to pass through. The membrane rejects 85%
– 95% of inorganic solids. Reverse osmosis is a percent rejection
technology. The purity of the product water depends on the purity of the
inlet water. The purity of reverse osmosis product water is much higher
than the purity of the feedwater.
Reject Water
A large percentage (50% – 75%) of the feedwater does not pass through
the membrane but flows across the membrane surface, constantly cleaning
it and carrying the inorganic and organic solids to drain. This water
is called "reject."
Standard Features
| Power Requirements
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110V, 60 Cycle, 10AMP |
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| Frame |
Construction |
Steel |
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Dimensions |
18" H x 38" W x 6" D (46 cm x 97 cm x 15 cm) |
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Mounting |
Wall |
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| Membranes |
Max. Operating Pressure |
300 psi (2,000 kPa) |
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Max. Feed Temperature |
95° F (35° C) |
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Recommended pH |
2 to 11 |
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Free Chlorine Tolerance |
<0.1 ppm |
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Average Rejection |
95% |
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Gallons per day |
850 at 65 psi (3,200 liters at 450 kPa) |
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| Membrane Vessels |
Number of Vessels |
2 |
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Vessel Rating |
230 psi (1600 kPa) |
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Vessel Construction |
PVC and Glass Filled Polyester |
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Max. Temperature |
105° F (41° C) |
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| Water Softener |
Type |
Time Clock Initiated |
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Grains Removed |
45,000 |
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Flow Rate |
10 gpm (40 liters/min) |
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Resin |
1.5 cubic feet total (42,500 cc) |
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Pipe Size |
3/4" (1.9 cm) |
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Resin Tank Dimensions |
10" x 54" (25 cm x 140 cm) |
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Brine Tank Dimensions |
18" x 30" (46 cm x 76 cm) |
Why would your facility consider using a reverse osmosis system?
As you know, water quality varies depending on location. In some areas,
total dissolved solids can be sustained at or below 100 ppm, eliminating
pretreatment measures for effective waterjet operation.
However, in areas where the total dissolved solids (TDS) rise in excess
of 100 ppm, an J.R. Jet Low Pressure Reverse Osmosis System can be just the
assurance you need to provide clean, pure water to your equipment.
A reverse osmosis system removes 90% to 95% of the total dissolved solids
in your water. And since these dissolved particles are the primary source
of damage to the sensitive orifice, mixing tube and inner workings of
J.R. Jet waterjet equipment, their removal assures a longer component life
and a greater measure of quality performance.
A reverse osmosis system can save you money by protecting your waterjet
equipment thus not having to replace your expendables nearly as often.
Benefits
- Virtually hands-free operation
- Pure water can be used for other equipment in shop (EDM, etc.)
- More hours of running time between maintenance
- Inexpensive filter changes on reverse osmosis once per month
- Most cities only charge $2.50 per 1000 gallons (3,800 liters) making
the cost for water minimal
When to consider a water softener?
In some locations you will find the hardness (calcium and magnesium) in
your water to be high but the TDS to be below 100. In situations like
this a water softener is recommended.
You will gain many of the same benefits that a reverse osmosis system
would give you but at a lower cost.
Specifications subject to change without notice.
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