
Fleck Valve 3900

Product Features
• Fully adjustable 5-cycle control delivers controlled
upflow backwash, downflow brining, slow rinse, rapid
rinse and downflow service
• Designed for single tank or multi-tank systems, alternating
or interlocking
• Continuous flow rate of 250 GPM
• Protective NEMA 3R enclosure is water resistant, rain
tight, corrosion resistant and UV stable
• Operational no hard water bypass during regeneration
• Choice of 7 or 12 day clock or meter initiated
regeneration
• No hard water bypass
Options
• Backwash filter
• Meter initiated regeneration
• Upflow regeneration
• Electronic timer, ET or Systemax
• Service valve operator
• Auxiliary switches
• Side mount
Valve Specifications
Valve material Lead-free brass*
Inlet/Outlet 3˝ NPT
Cycles 5
Flow Rates (50 psi Inlet) - Valve Alone
Flow rate (50 psi inlet) Top mount
Continuous (15 psi drop) 250 GPM
Peak (25 psi drop) 325 GPM
CV (flow at 1 psi drop) 65
Max. backwash (25 psi drop) 100 GPM
Regeneration
Downflow/Upflow Both
Adjustable cycles Yes
Time available Electromechanical: 164 minutes
ET: 0 - 999.9 minutes
Systemax: 0 - 999.9 minutes
Meter Information
Meter accuracy range 7 - 300 GPM +/- 5%
Meter capacity range (gal.) Standard: 3,750-63,750
Extended: 18,750-318,750
ET: 1 - 9,999,999
Systemax: 1 - 99,999,999
Dimensions
Distributor pilot 3.5˝ O.D. (3˝ pipe)
Drain line 2˝ NPTF
Brine line 1˝ NPTM
Mounting base Top: 6˝-8 threaded or flanged
Height from top of tank 15˝
Typical Applications
Water softener 24˝-63˝ diameter
Iron filter 24˝-42˝ diameter
Sediment filter 24˝-42˝ diameter
Carbon filter 24˝-42˝ diameter
Neutralizing filter 24˝-42˝ diameter
Additional Information
Injector brine system 1˝ - 1800
Electrical rating 24 v, 110 v, 220 v - 50 Hz, 60 Hz
Max VA 171
Estimated shipping weight Time clock: 93 lbs.
Metered valve: 115 lbs.
Pressure Hydrostatic: 300 psi
Working: 20 - 125 psi
Temperature 34° - 110° F
*As defined in the Safe Drinking Water Act.