Fleck 3900


Fleck 3900

Fleck 3900

3900 is a ROHS and Reach brass valve with fully adjustable 3- or 5-cycle control for an efficient and reliable water treatment. Its backwash capabilities accommodate softener tanks up to 63" and filter up to 42" in diameter. Moreover, the 3900 valve features an environmentally protective cover for water and corrosion resistance and UV stability.

Technical characteristics

  • Backwash flow (m³/h)
    • 24
    Inlet / Outlet (inches)
    • 3
    Service flow (m³/h)
    • 57
    Tank size (inches)
    • 24
    • 30
    • 36
    • 42
    • 48
    • 55
    • 60

Features & Benefits

  • Time-tested, hydraulically-balanced piston, seal and spacer concept
    Pilot the service flow and regeneration
  • Versatile top or side mount
    Suitable for commercial or industrial applications
  • Valve body in brass
    Offers superior strength and durability
  • Designed for single or multi-tank systems, alternating or interlocking.
    Wide range of applications


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