Fleck 2850S

FEATURES/BENEFITS

Lead-free brass valve body for superior strength and durability

Continuous service flow rate of 70 GPM with a backwash of 70 GPM

Backwash capability accommodates softener tanks up to 36″ and filter up to 30″ in diameter

Fully adjustable 3- or 5-cycle control for efficient and reliable water treatment system

Designed for single or multiple tank systems

Environmental protective cover for water resistance, corrosion resistance, and UV stability

Time-tested, hydraulically balanced piston for service and regeneration

Rugged-built electromechanical timer designed with heavy duty 3/8″ wide plastic gears

VALVE SPECIFICATIONS

Valve Material Lead-free brass*

Inlet/Outlet 1-1/2″ NPTF/BSPF

Cycles 5

FLOW RATES (50 PSI INLET) – VALVE ALONE

Continuous 70 GPM
15 psi drop (15.9 m3/h)

Peak 90 GPM
25 psi drop (20.4 m3/h)

Cv 18
flow at 1 psi drop

Max. Backwash 70 GPM (15.9 m3/h)
25 psi drop

OPTIONS

Filter or softener control valves

No hard water bypass piston

Brine cam auxiliary switch

Electromechanical timer auxiliary
switch

Hot water

Versatile top or side mount

Electromechanical 7- or 12-day time clock, meter delayed, or meter immediate regeneration

Manual lever operations

NXT– Network controller uses on-board communication capabilities to link multiple valves (via off-the-shelf CAT3, CAT5, or better cables) for system types 4,5,6,7,9,and 14

SXT– Large LCD display and user-selectable time clock or metered function; usable for filtration and softener systems

XT– Offers a two-line, 16 character
LCD backlit display for easy entering of master and user programing as well as view of diagnostics

Electromechanical Timer– Simple to adjust and easy to service with quick access to all internal components

REGENERATION

Downflow/Upflow Downflow only

Adjustable Cycles Yes

Time Available
Electromechanical: 0 – 164min/regeneration
SXT: 0 – 99 min/cycle
NXT: 0 – 240 min/cycle
XT: 0 – 240 min/cycle

METER INFORMATION

Meter Accuracy
1″ Paddle: 0.7 – 40 GPM ± 5%
(0.16 – 9 m3/h)
1-1/2″ Paddle: 1.5 – 75 GPM ± 5%
(0.34 – 17 m3/h)
1-1/2″ Turbine: 2 – 40 GPM +5/-8%
(0.45 – 9 m3/h)

Meter Capacity Range
1″ Standard: 310 – 5,270 gal
(1.2 – 20 m3)

1″ Extended: 1,550 – 26,350 gal
(6 – 100 m3)

1-1/2″ Standard: 625 – 10,625 gal
(2.5 – 40 m3)

1-1/2″ Extended: 3,125 – 53,125 gal
(12 – 200 m3)

SXT: 1 – 999,900 gal
(0 – 3,785 m3)

NXT: 1 – 9,900,000 gal
(0 – 37,476 m3)

XT: 1,000 – 9,900,000 gal
(3.8 – 37,476 m3)

Dimensions

Distributor Pilot 1.9″ O.D. (50 mm)

Drain Line 1-1/4″ NPTF

Brine Valve
1600 or 1650: 3/8″
1700 or 1710: 1/2″

Injector System 1600 or 1700

Mounting Base 4″– 8 UN

Height From
Top of Tank 6.5″ (165 mm)

Riser Tube Diameter 1-1/2″ (38 mm)

Riser Height 1/4″ Below top of tank

TYPICAL APPLICATIONS

Water Softener 14 – 36″ diameter

Filters 14 – 30″ diameter

ADDITIONAL INFORMATION

Electrical Rating 24/110/220V
50/60 Hz

Estimated Shipping Weight
Time Clock: 19 lbs

Metered Valve: 27 lbs

Pressure
Hydrostatic: 300 psi
(20 bar

Working: 20 – 125 psi
(1.4 – 8.5 bar

Temperature
Cold Water Valve: 34 – 110°F (1 – 43°C)

Hot Water Valve: 34 – 180°F (1 – 82°C)

Hot Water Valve: 34 – 150°F (1 – 66°C)