2025 Nelsen Corporation Catalog - Catalog - Page 88
3 Nelsen Water Solutions 1-1/2" Filter Systems
Filtration Equipment - Commercial
NWS15 1-1/2" Backwash Only Filters (L/Media)
Systems include the Nelsen Water Solutions 1-1/2" control valve, mineral tank, commercial distributor,
and gravel bed; choose from a variety of filter media.
NWS15-AF14
14" x 65" Backwash Only Filter
NWS15-AF16
16" x 65" Backwash Only Filter
NWS15-AF18
18" x 65" Backwash Only Filter
NWS15-AF21
21" x 62" Backwash Only Filter
NWS15-AF24
24" x 72" Backwash Only Filter
CONTROL VALVE FEATURES
• 1-1/2" Top mount control valve suited for commercial/industrial applications
• Epoxy coated lead free brass valve body*
• Economical stainless steel optional meter assembly
• Service flow rate of 70 gpm, backwash 52 gpm
• Solid state microprocessor with easy access front panel
settings
• Front panel display for time of day, days until next
regeneration, volume remaining, current flow rate and total
volume used (Totalizer)
• Four methods to initiate regeneration; meter immediate,
meter delayed, time clock delayed or pressure differential
• Fully adjustable cycle times with backwash and rinse
• Coin Cell Lithium battery back-up with an 8 hour carry over
• Level VI 15-volt output DC power supply provides safe and
easy installation
• Reliable and proven DC drive
• Patented one piece expanding seal spacer stack assembly
U.S. Patent 6,402,944
• Patented linearly reciprocating piston operation U.S. Patent 6,444,127
• Fully adjustable cycle sequences and times
NELSEN WATER SOLUTIONS 1-1/2" CONTROL
Mineral Tank Size
14 x 65
16 x 65
18 x 65
21 X 62
24 X 72
Maximum Flow Rate, System - 70 gpm
Maximum Backwash Rate, System - 52 gpm
FLOW RATES* - Gallons Per Minute
SVC
BKW
SVC
BKW
SVC
BKW
SVC
BKW
SVC
BKW
Greensand Plus
6.5
13.0
8.5
15.0
10.5
20.0
14.5
25.0
18.0
35.0
Birm
4.0
10.0
4.5
13.0
7.0
15.0
9.5
25.0
11.0
35.0
Activated Carbon
4.0
10.0
4.5
13.0
7.0
15.0
9.5
25.0
11.0
30.0
Calcite/Corosex
5.0
10.0
7.0
15.0
8.5
20.0
12.0
25.0
10.0
35.0
Multi-Media
3.5
15.0
4.0
20.0
5.0
25.0
7.0
35.0
9.5
50.0
Filter Ag Plus
10.0
15.0
14.0
20.0
17.0
25.0
24.0
35.0
22.0
50.0
Filter Sand
3.5
15.0
4.0
20.0
5.0
25.0
7.0
35.0
9.5
50.0
Katalox
8.5
15.0
11.0
15.0
14.0
25.0
19.0
30.0
19.0
35.0
SYSTEM SPECIFICATIONS
Mineral Tank Size
14 x 65
16 x 65
18 x 65
21 x 62
24 x 72
Pipe Size
1-1/2"
1-1/2"
1-1/2"
1-1/2"
1-1/2"
Drain Pipe Size
3/4"
3/4"
3/4"
3/4"
3/4"
Distributor Piliot
1-1/2"
1-1/2"
1-1/2"
1-1/2"
1-1/2"
Tank Thread
4" - 8
4" - 8
4" - 8
4" - 8
4" - 8
Overall Height, Inches
74
74
75
75
82
*NOTE - due to varying water conditions, water pressures, and assembly materials, service flow rate should be used as a guideline only.
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For more information visit – NelsenCorp.com • NelsenWaterSolutions.com • VESTAwater.com
All prices and products subject to change without notice. ©Nelsen Corporation
