2025 Nelsen Corporation Catalog - Catalog - Page 75
Nelsen AIO Filter Systems 3
The Nelsen AIO® Air Injection Oxidizing Filter System, as a single tank system, is an efficient and cost
effective system for the removal of iron and sulphur. The Nelsen AIO maintains an “air pocket” in the
top of the tank while the system is in service. As the water passes thru the air pocket, iron and sulphur
are oxidized. Additionally, dissolved oxygen is added to the water. The Nelsen AIO filter media bed then
removes the iron and sulphur from the water.
The Nelsen AIO can remove up to 5 ppm Hydrogen Sulfide and up to 8 ppm Iron. A daily backwash will
remove accumulated iron and replenish the filter media bed. The regeneration process also adds a fresh
air pocket to the system.
The Nelsen AIO system comes equipped with either a Fleck 2510SXT or 5600SXT air injection control
head that automatically backwashes the system daily to clean the media and flush everything down the
drain. The Nelsen AIO is able to put the whole oxidation process inside one tank, keeping maintenance
costs and down time to a minimum.
The systems include 3⁄4" bypass valve, mineral tank and all necessary media and support bed for
individual application.
5600AIO SYSTEM
NELSEN 5600AIO SYSTEMS FOR IRON
AIO-5610-FE
10" x 44" Iron System
AIO-5610T-FE
10" x 54" Iron System
AIO-5612-FE
12" x 52" Iron System
AIO-5613-FE
13" x 54" Iron System
NELSEN 5600AIO SYSTEMS FOR SULFUR
AIO-5610-S
10" x 44" Sulfur System
AIO-5610T-S
10" x 54" Sulfur System
AIO-5612-S
12" x 52" Sulfur System
AIO-5613-S
13" x 54" Sulfur System
NELSEN 2510AIO SYSTEMS FOR IRON
AIO-10-FE
10" x 44" Iron System
AIO-10T-FE
10" x 54" Iron System
AIO-12-FE
12" x 52" Iron System
AIO-13-FE
13" x 54" Iron System
NELSEN 2510AIO SYSTEMS FOR SULFUR
AIO-10-S
10" x 54" Sulfur System
AIO-10T-S
10" x 54" Sulfur System
AIO-12-S
12" x 52" Sulfur System
AIO-13-S
13" x 54" Sulfur System
NELSEN 2510AIO SYSTEMS W/KATALOX MEDIA
AIO-10T-KATALOX
10" x 54" System w/Katalox Media
AIO-12-KATALOX
12" x 52" System w/Katalox Media
AIO-13-KATALOX
13" x 54" System w/Katalox Media
GENERAL SPECIFICATIONS FOR NELSEN AIO® SYSTEMS
2510AIO SYSTEM
Model Type
Mineral
Tank Size
5600/2510
5600T/2510T
5600/2510
5600/2510
10" x 44"
10" x 54"
12" x 52"
13" x 54"
5610/2510
5610T/2510T
5612
5613
2512
2513
10" x 44"
10" x 54"
12" x 52"
13" x 54"
12" x 52"
13" x 54"
2510T
2512
2513
10" x 54"
12" x 52"
13" x 54"
Service Flow* Backwash
Ferrous Iron
Maximum
Minimum
ppm (Max)
IRON SYSTEMS
2.0
5.0
7.0
2.5
5.0
7.0
3.0
7.0
7.0
4.0
7.0
7.0
SULFUR SYSTEMS
2.5
5.0
X
3.0
5.0
X
4.0
7.0
X
5.0
7.0
X
4.0
7.0
X
5.0
7.0
X
KATALOX SYSTEMS
4.5
5.0
8.0
6.5
7.0
8.0
7.5
7.0
8.0
Sulfur
ppm (Max)
pH
Minimum
0
0
0
0
6.8
6.8
6.8
6.8
5
5
5
5
5
5
6.8
6.8
6.8
6.8
6.8
6.8
5
5
5
6.8
6.8
6.8
*NOTE - due to varying water conditions, water pressures, and assembly materials, service flow rate should be used as a guideline only.
Call Nelsen Toll-Free from Anywhere in the U.S. - 800.362.9686
All prices and products subject to change without notice. ©Nelsen Corporation
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Filtration Equipment
Nelsen AIO® Air Injection Oxidizing Filter Systems
