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Fleck 3900 Duplex Water Softeners (3")

Fleck Duplex 3900 Water Softener Kit

Fleck Duplex 3900 Water Softener Kit

These kits are built around the Fleck 3900 valve heads. The kit includes the valve heads, yokes, vessels, quality food grade softener resin, brine tank and all interal parts.
Fleck 3900 Valve

Fleck 3900 Valve

•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"plastic gears

General Conditions for Installation

Connections Inlet & Outlet: 3" BSPF
Drain Connection*: 2" BSPM
Electrical rating: 230-24V / 50 Hz
Power Rating: 340 watts
Minimum inlet pressure: 2 Bar
Maximum inlet pressure: 7 Bar
Vacuum: Not permitted
Average Pressure Loss**: 1 Bar
Maximum water Temperature: 43°C

*Open drain required
**It is recommended that a 20 micron pre-cartridge filter be installed prior to the inlet of the water softener


Regeneration will take immediately after reaching the set capacity

The interval between regenerations should not be more than 4 days, this is to prevent bacteria growth.
Regenerations should be more than 8 hours apart.

Fleck 3900 Duplex NXT Meter Controlled Softener Kit (3

Fleck 3900 Duplex NXT Meter Controlled Softener Kit (3")

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