Fleck 3900

FEATURES/BENEFITS

Lead-free brass valve body for superior strength and durability

Continuous service flow rate of 250 GPM with a backwash of 100 GPM

Backwash capability accommodates softener tanks up to 63″ and filter up to 42″ 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 3″ NPTF/BSPF

Cycles 3 or 5

OPTIONS

Filter or softener control valves

Downflow co-current or upflow counter-current regeneration

No hard water bypass piston

Brine cam auxiliary switch

Electromechanical timer auxiliary
switch

Treated water regeneration

Versatile top or side mount

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

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

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

FLOW RATES (50 PSI INLET) – VALVE ALONE

Continuous 250 GPM (56.8 m3/h)
15 psi drop

Peak 325 GPM (73.8 m3/h)
25 psi drop

Cv 65
flow at 1 psi drop

Max. Backwash 100 GPM (23.8 m3/h)
25 psi drop

REGENERATION

Downflow/Upflow Both

Adjustable Cycles Yes

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

METER INFORMATION

Meter Accuracy
3″ Paddle: 7 – 300 GPM ± 5%
(1.6 – 6.8 m3/h)

Meter Capacity Range
3″ Standard: 3,750 – 63,750 gal
(14 – 240 m3)

3″ Extended: 18,750 – 318,750 gal
(71 – 1,200 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 3″ O.D. (90 mm)

Drain Line 2″ NPTF

Brine Valve
1800: 1

Injector System 1800

Mounting Base Top: 6″ – 8 threaded, 6″ flanged or welded flange

Height From
Top of Tank 15″ (381 mm)

Riser Tube Diameter 3″ (76 mm)

Riser Height Flush with top of tank

TYPICAL APPLICATIONS

Water Softener 24 – 63″ diameter

Filters 24 – 42″ diameter

ADDITIONAL INFORMATION

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

Estimated Shipping Weight
Time Clock: 93 lbs

Metered Valve: 115 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)