For Commercial Applications
ES-WQ-PWR4011
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Series PWR4011
Series PWR4011
Commercial Reverse Osmosis
Systems
Flow Rates: Up to 5,400 gpd (20,439 lpd)
Watts Pure Water Series PWR4011 reverse osmosis (RO) sys-
tems are commercial grade low-energy RO units for the reduc-
tion of total dissolved solids from water. They are designed
to supply reverse osmosis quality water with production rates
ranging from 1,800 to 5,400 gallons per day. These units are
designed for wall mount installations. Reverse osmosis is a
process where high-pressure feed water is fed into a semi-
permeable membrane. In the membrane, pure water is allowed
to pass through the membrane material and exit as purified
permeate water. Dissolved mineral salts are not allowed to
pass through the membrane and become a concentrated
reject stream that is sent to a drain. These RO systems use
low-energy membranes to achieve a minimum average NaCl
ionic rejection of 95 percent.
Watts Pure Water Series PWR4011 RO systems are a well
designed, rugged line of purifiers with high-pressure piping
constructed of stainless steel. This series comes with a pre-
selected assortment of features for monitoring and operation.
Stainless steel membrane housings and high-pressure piping,
inlet and outlet pre-filter pressure gauges, low-pressure switch
with delayed auto restart, inputs for tank level and pretreatment
interlock, adjustable reject recycle, permeate and reject water
flow meters, permeate water check valve, inlet solenoid valve,
membrane feed water pressure gauge, and adjustable reject
valve are all standard features. These systems are designed to
feed an atmospheric storage tank for collection of the reverse
osmosis water. Reverse osmosis water has a wide variety of
applications including municipal water treatment, steam boiler
and steam sterilizer make up, laboratory use, spot free rinsing,
ice and beverage water, water for cooking, food processing,
metal plating and finishing, as well as water for humidification.
Reverse osmosis is also the pretreatment of choice for ion
exchange type de-ionization (DI) systems. Using RO water as
make up to a DI system reduces the exhaustion rate of the DI
resin by up to 95 percent saving time, money, and chemicals
associated with DI resin regeneration.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Features
• Stainless steel high-pressure piping
• 304 stainless steel wall mounted support frame
• 316L stainless steel 300psi high-pressure membrane
housings
• Pressure gauges for pre-filter inlet/outlet and membrane
feed pressure
• Low feed water pressure safety switch
• Microprocessor based controller with delayed auto restart
after low-pressure shut down
• Tank level and pretreatment interlock inputs
• Low-energy membranes with 95% minimum average salt
rejection
• Permeate and reject water flow meters
• Adjustable reject and reject recycle valves
• Permeate check valve
• Automatic inlet solenoid valve
• 10" high flow pre-filter
Standards
• Pre-filter Housing NSF/ANSI Certified 42
PURE WATER
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.
(1 pages)
(1 pages)
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