The 2850S valve has been discontinued. Parts are still available for purchase. Click on “Download Service Manual” or call 800-581-3488.
Fleck Model: 2850S
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Features
- Fully adjustable 5-cycle control delivers controlled upflow backwash, downflow brining and slow rinse, rapid rinse, timed brine refill and downflow service.
- Time-tested hydraulically balanced piston, seal and spacer design to pilot service flow and regeneration.
- Solid lead-free brass valve body.
- Backwash capacity handles tanks up to 30″ diameter.
- 1-1/2″ top mount control valve ideal for smaller size commercial/industrial applications.
- Consistent brining regardless of salt levels with timed brine refills.
- Choice of 7 or 12-day clock, manual or meter.
- Continuous flow rate of 51 gpm with a backwash of 49 gpm. Ideal for filter applications.
Options
- Backwash filter
- Hot water
- Meter initiated regeneration
- Manual operation
- Service valve operator
- No hard water bypass piston
- Electronic timer
- Environmental cover
- Nickel plating
Valve Specifications |
|
| Valve Material | Lead Free Brass |
| Inlet/Outlet | 1-1/2"" N PTF/BSPF |
| Cycles | 5 |
Flow rates (50 PSI Inlet) - Valve Alone |
|
| Continuous (15 PSI Drop) | 70 gpm |
| Peak (25 PSI Drop) | 90 gpm |
| CV** | 18 |
| Max.Backwash (25 PSI Drop) | 70 gpm |
Regeneration |
|
| Downflow/Upflow | Downflow Only |
| Adjustable Cycles | Yes |
| Time Available | Electromechanical: 0 - 164 mi n/regeneration SXT: 0 - 99 mi n/cycle NXT: 0 - 240 mi n/cycle XT: 0 - 240 mi n/cycle |
Meter Information |
|
| Meter Accuracy Range: | 0 .7 - 40 G PM ± 5% 1.5 - 75 G PM ± 5% 2 - 40 G PM +5/-8% |
| Meter Capacity Range: | 1" Standard: 310 - 5,270 gallons 1" Extended: 1,550 - 26,350 gallons 1-1/2" Standard: 625 - 10,625 gallons 1-1/2" Extended: 3,125 - 53,125 gallons SXT: 1 - 999,900 gallons NXT: 1 - 9,999,900 gallons XT: 1,000 - 9,999,900 gallons |
Dimensions |
|
| Distributor Pilot | 1.9" O.D. |
| Drain Line | 1-1/4"" N PTF |
| Brine Line | 1600 or 1650: 3/8" 1700 or 1710 : 1/2" |
| Mounting Base | 4"-8 UN |
| Height from top of tank | 6-1/2" |
Typical Applications |
|
| Water Softener | 14"-36" diameter |
| Filters | 14"-30" diameter |
Additional Information |
|
| Electrical Rating | 24V,110V,220V - 50Hz, 60Hz |
| Pressure | Hydrostatic: 300 psi Working: 20 - 125 psi |
| Temperature | 34° - 150° F |