MIDWEST RO
reverse osmosis systems
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MIDWEST RO
reverse osmosis systems
Reverse Osmosis
is a membrane separation process wherein purified water is extracted
by using synthetic membranes which are permeable to water molecules
but relatively non-permeable to contaminants. The raw water stream
is first pressurized to reverse the natural osmosis process that
occurs across the semi-permeable membranes.
The ROS-100 System is
a reverse osmosis module designed for large industrial applications.
Each ROS module utilizes 8 inch diameter spiral wound membranes,
housed in
fiberglass
vessels producing a capacity of 100 G.P.M. The modular design allows for easy
expansion.
The ROS-100 is a
free standing system designed and engineered for ease of maintenance and
operation. Solid state controls provide continuous monitoring
of all critical
parameters in addition the
system will automatically stop the system when conditions are not within
preset limits, i.e. low suction pressure, high product conductivity. Instrumentation
includes liquid-filled pressure gauges;
product and concentrate flow meters; and a conductivity meter to measure
product water quality.
PUMP PACKAGES
Pumps are selected according to the number of ROS-100 modules. The pumps are
stainless steel centrifugal
type with integral 3- phase, 60hz or 50hz, (optional) TEFC (totally enclosed
fan cooled optional) motors.
STANDARD FEATURES
• Flow Rates of 100 gpm
• Product and Concentrate Flowmeters
• Solid State Controller
• PLC (AB) controller
• Low Suction Pressure Switch and Shutoff
• High Pressure Speed Switch and Shutoff
• Liquid-Filled Pressure Gauges for the Pumps, Discharge, Membrane, Secondary
Feed, Permeate and Concentrate Pressure Gauges.
• High Product Conductivity Monitor
• Product Storage Level Connection and Shutoff
• 1 Micron Pre-Filter
• Flush system
• Conductivity Analyzer
• Digital Totalizing Flow Meters
• Cleaning Station
• Stainless Pump
• Chemical Feed
• Stainless piping
• Stainless frame
CONTROLLER INDICATION
• Low Suction Pressure
• High Product Conductivity
• High Tank Level
• High Permeate Flow
• Low Concentrate Flow
MEMBRANE SPECIFICATIONS
Membrane Type.....Thin-Film Composite(1)
pH Range..................2-11
Chlorine Tolerance..less than 0.1 ppm
Max. Operating Temperature 185 F
Average..................99.0% (3)
1. Specifications at 934 psi, 77 F (25 C)
32,000 ppm NaCL and 10% recovery
2. Specifications at 420 psi, 77 F (25 C),
2000 ppm NaCL and 10% recovery
3. For higher rejection rates consult Daico Water Management
Unitized Frame Mounted................................Yes
Design Flow Per Pump....................................150
gpm
Design Discharge Pressure.............................220.0
psi
Number of Pumps.............................................1
Each
Pump Construction...........................................Stainless
Steel
Pump Mounting................................................Close
Coupled
Pump Type.......................................................
Centrifugal
Pump Suction/Discharge Size.......................... 2 ½ " Flange
Motor Horsepower......................................…...30-40
HP TEFC
Magnetic Starter With Heater Coils.................NEMA 4 Enclosure
Manifold Suction/Discharge............................. 2 ½ " inch
Suction Valve Type............................................Ball
Valve
Discharge Valve Type.......................................Stainless
Ball Valve
Discharge Check Valve Type............................Ball
Pressure Gauges................................................6
Each, SS 316
Low Pressure Switch........................................1
Each, SS 316
Stainless piping ……………………………….
All
Stainless Frame ……………………………….
Total
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