2025 Nelsen Corporation Catalog - Catalog - Page 190
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Nelsen Commercial NRO 2540 Systems
Reverse Osmosis
The NRO Commercial Series of Reverse Osmosis Systems are custom built by Nelsen
Corporation to your specifications. These commercial systems of unmatched value in quality
and price give you a multitude of standard features that are optional on most other ROs!
NSF-grade high quality parts are used to build this tough system. All Nelsen NRO Commercial
Systems are wet tested to optimum pressure and production prior to shipment.
The NRO 2540 Series is designed for Commercial or Light Industrial applications requiring
flow rates of 900 or 1800 gallons per day (GPD). The NRO 2540 Series features the durability
of a powder coated steel frame, stainless steel pressure vessels, liquid filled panel mounted
pressure gauges, and a rotary vane pump with a mounting bracket system that is easily
removed for maintenance by one person.
2-1/2" X 40" MEMBRANE SYSTEMS
NRO-F-12540S-900-1-XXXXX
1-25x40 Membrane Comm RO - 900 GPD
NRO-F-22540S-1800-1-XXXXX
2-25x40 Membrane Comm RO - 1800 GPD
NRO-W-22540S-1800-1-XXXXX
WALL MOUNT
(SHOWN W/UPGRADES)
SYSTEM FEATURES INCLUDE:
• Carbon Steel Frame for
strength & rigidity
• Powder Coated Frame for long life
& durability
• Extended Frame Legs with plastic
end caps for protection from ground
contact and ease of movement
• Replaceable Motor Mounting System
- makes field repairs easy, bracket
mounts to motor and slides over frame
• Quick Connect Fittings on
rotary vane pumps
• Quick Connect Fittings on gauges &
recycle operation for ease of service
• Stainless Steel inlet shut off valve
• High Flow TFC Low Pressure
Membranes - additional element
types & ratings available
• High Quality Stainless Steel
membrane housings
• Integrated Recycle Valve
• Low Pressure Mechanical Switch
w/time delay snubber valve
• Permeate and
Concentrate Flow Meters
• Liquid Filled Gauges for accurate &
steady pressure readings
• Panel Mounted Concentrate
Pressure Gauge
• Optional Stainless Steel High
Pressure Centrifugal Pump for
Lasting Performance (1800 GPD Only)
• Pump Throttle Valve & pipe mounted
discharge pressure gauge for multistage booster pumps
• Float Switch & Pretreatment
Interlocks - standard on all systems
• High Flow 5 Micron Front Mounted
Prefilter for ease of service
7 - 28
2-1/2" X 40" MEMBRANE WALL MOUNT SYSTEMS
A wall mounted frame is substituted for the free standing floor frame. The wall mount frames
are constructed so expansion of additional membranes and/or pumps can be added with ease.
1-4 membranes systems only.
NRO-W-12540S-900-1-XXXXX
1-25x40 Membrane Comm RO - 900 GPD
NRO-W-22540S-1800-1-XXXXX 2-25x40 Membrane Comm RO - 1800 GPD
OPTIONAL NRO SERIES UPGRADES:
• Digital Display Electronic Control
Box with permeate TDS display, low
pressure auto reset
• Private Labeling Available
• Custom Photo Quality Controller Graphics
Available (min order quantity required)
• Interval Fast Flush
• Permeate Flush
• Custom Operational Programs at no cost
• Second TDS Function for feed water
• Additional Panel Mounted Gauges
customer specified
• Pre & Post Filter Gauges
• Manual/Auto Flush Valve
• Interstage Gauges
• Bladder Tank Control available to provide
pressurized storage
• Wall Mount Frame
NELSEN COMMERCIAL NRO 2540 RO SYSTEM SPECIFICATIONS
Model:
Production GPD ****
Membrane
Permeate GPM
Feed GPM***
% Recovery w/Recycle
Pump
FLA 60HZ 1Ø 110/220
Circuit Size
Solenoid Voltage
Inlet
Permeate
Concentrate
Floor Model Unit Dims (DxWxH)
Floor Model Shipping Dims (DxWxH)
Wall Mount Unit Dims (DxWxH)
Wall Mount Shipping Dims (DxWxH)
Weight - Pounds
NRO-12540-900 (WM)
900
2-1/2" x 40" (1)
.48GPM
1.7
19-40%
.5 HP
7.1/3.4
20/10A
120v
3/4"
3/8"
3/8"
27¼"x24"x54¾"
34"x25½"x58"
16¼"x32¾"x47¼"
48"x40¾"x29¼"
104 lbs. (113 lbs.)
NRO-22540-1800 (WM)
1800
2-1/2" x 40" (2)
.97GPM
2
30-60%
.75 HP
10/5.0
20/10A
120v
3/4"
3/8"
3/8"
27¼"x24"x54¾"
34"x25½"x58"
16¼"x32¾"x47¼"
48"x40¾"x29¼"
118lbs. (127 lbs.)
** Consult Factory *** Minimum pressure of 20psi **** The stated product performance is based on data taken after 30 minutes of operation at the
following test conditions:
2,000 mg/L NaCl solution at 225 psig ( 1.5 MPa) applied pressure, 15% recovery, 77o F (25o C), pH 6.5–7.0
For more information visit – NelsenCorp.com • NelsenWaterSolutions.com • VESTAwater.com
All prices and products subject to change without notice. ©Nelsen Corporation
