2025 Nelsen Corporation Catalog - Catalog - Page 95
Fleck 2815 Filter Systems 3
CONTROL VALVE FEATURES
• Fully adjustable 5-cycle control delivers controlled up-flow backwash, down-flow brining
and slow rinse, rapid rinse, timed brine refill and down-flow service
• Time-tested hydraulically balanced piston, seal and spacer design to pilot service flow
and regeneration
• Solid lead-free brass valve body for superior strength and durability
• Backwash capacity handles tanks up to 30" diameter
• 1-1/2" top mount control valve ideal for smaller size
commercial/industrial applications
• Choice of 7 or 12 day clock, manual or meter
• Continuous flow rate of 70 GPM with a backwash of
70 GPM
• Available SXT or NXT2 controls
Filtration Equipment - Commercial
Fleck 2815AF Backwash Only Filters (Less Media)
Features include Fleck 2850 filter valve, environmental backplate and cover, mineral tank, commercial
distributor, and gravel bed.
Choose media separately from Section 4.
2815AF-14
14" x 65" Backwash Only Filter
2815AF-16
16" x 65" Backwash Only Filter
2815AF-18
18" x 65" Backwash Only Filter
2815AF-21
21" x 62" Backwash Only Filter
2815AF-24
24" x 72" Backwash Only Filter
2815AF-30
30" x 72" Backwash Only Filter
TESTED and CERTIFIED by the
WQA to NSF/ANSI Standard 61
Section 8 Material Safety Only.
SXT CONTROL SHOWN
TESTED and CERTIFIED by the
WQA to NSF/ANSI Standard 372
for Lead Free Compliance.
FLECK 2815 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 - 70 gpm
FLOW RATES* - Gallons Per Minute
SVC
BKW
SVC
BKW
SVC
BKW
SVC
BKW
SVC
BKW
Greensand Plus
6.5
12.0
8.5
15.0
10.5
20.0
14.5
25.0
18.0
35.0
Birm
4.0
10.0
4.5
15.0
7.0
15.0
9.5
25.0
11.0
35.0
Activated Carbon
4.0
10.0
4.5
15.0
7.0
15.0
9.5
25.0
11.0
30.0
Calcite/Corosex
5.0
12.0
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
20.0
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
1"
1"
1"
1"
1"
Distributor Pilot
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
73
73
74
74
81
30 X 72
SVC
30.0
17.0
17.0
15.0
15.0
35.0
15.0
30.0
BKW
55.0
55.0
50.0
55.0
75.0
75.0
75.0
60.0
30 x 72
1-1/2"
1"
1-1/2"
6" Flange
90
*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
3 - 25
