2025 Nelsen Corporation Catalog - Catalog - Page 186
SYSTEM FEATURES & OPTIONS
Additional system features include:
Optional NRO Series Upgrades:
• Carbon Steel Frame for strength & rigidity
• Digital Display Electronic Control Box with permeate TDS
display, low pressure auto reset
• 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
• Private Labeling Available
• Custom Photo Quality Controller Graphics Available
(min order quantity required)
• Interval Fast Flush
• Permeate Flush
• Quick Connect Fittings on rotary vane pumps
• Custom Operational Programs at no cost
• Replaceable Quick Connect Fittings for ease of field repairs
• Quick Connect Fittings on gauges & recycle operation for
ease of service
• Second TDS Function
for feed water
• Stainless Steel inlet shut off valve
• Additional Panel
Mounted Gauges
customer specified
• High Flow TFC Low Pressure Membranes - additional
element types & ratings available
• Pre & Post
Filter Gauges
• High Quality Stainless Steel membrane housings
• Manual/Auto
Flush Valve
• Integrated Recycle Valve
• Low Pressure Mechanical Switch w/time delay snubber valve
• Interstage Gauges
• Permeate and Concentrate Flow Meters
• Bladder Tank Control
available to provide
pressurized storage
• Liquid Filled Gauges for accurate & steady pressure readings
• Panel Mounted Concentrate Pressure Gauge
• Wall Mount Frame
• Optional Stainless Steel High Pressure Centrifugal Pump
for Lasting Performance (1800 GPD Only)
• Pump Throttle Valve & pipe mounted discharge pressure
gauge for multi-stage booster pumps
• Float Switch & Pretreatment Interlocks - standard on all systems
• High Flow 5 Micron Front Mounted Prefilter for ease of service
NRO-22540-1800-WM
(SHOWN WITH OPTIONAL UPGRADES)
Nelsen Corporation has many years of technical
experience and service expertise ready to help optimize
the performance of your system or build a system to your
specific needs!
Nelsen Commercial Reverse Osmosis System Specifications
Model Type
Model Number:
Production GPD***
Membrane
Permeate GPM
Feed GPM**
% Recovery w/Recycle
Pump
FLA 60HZ 1Ø 110/220
Circuit Size
Solenoid Voltage
Inlet
Permeate
Concentrate
Shipping Dims (DxWxH)
Weight - Pounds
Floor Stand
NRO-F-12540S-900-1-XXXXX
900
2-1/2" x 40" (1)
.62 GPM
1.7
19-40%
1/2 HP
7.1/3.4
20/10A
110v
3/4"
3/8"
3/8"
34"x25½"x58"
104 lbs.
Floor Stand
NRO-F-22540S-1800-1-XXXXX
1800
2-1/2" x 40" (2)
1.25 GPM
3
30-60%
3/4 HP
10/5.0
20/10A
110v
3/4"
3/8"
3/8"
34"x25½"x58"
118 lbs.
© Nelsen Corporation
7 - 24
Wall Mount
Wall Mount
NRO-W-12540S-900-1-XXXXX NRO-W-22540S-1800-1-XXXXX
900
1800
2-1/2" x 40" (1)
2-1/2" x 40" (2)
.62 GPM
1.25 GPM
1.7
3
19-40%
30-60%
1/2 HP
3/4 HP
7.1/3.4
10/5.0
20/10A
20/10A
110v
110v
3/4"
3/4"
3/8"
3/8"
3/8"
3/8"
48"x40¾"x29¼"
48"x40¾"x29¼"
106 lbs.
120 lbs.
** Minimum pressure of 35psi dynamic
*** 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 150
psig ( 1.5 MPa) applied pressure, 15% recovery, 77o F (25o C), pH 6.5–7.0
