Fleck Model: 2850S

2850s
Download Service Manual

Call 800-581-3488 or Email customercare@fleckvalves.com to Order Now!

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 MaterialLead Free Brass
Inlet/Outlet1-1/2"" N PTF/BSPF
Cycles5

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/UpflowDownflow Only
Adjustable CyclesYes
Time AvailableElectromechanical: 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 Pilot1.9" 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 Softener14"-36" diameter
Filters14"-30" diameter

Additional Information

Electrical Rating24V,110V,220V - 50Hz, 60Hz
PressureHydrostatic: 300 psi
Working: 20 - 125 psi
Temperature34° - 150° F