Fleck 3900 Series 3" Commercial Control Valves
Fleck’s 3990 valve is ideal for commercial and industrial water softeners and filters with service flows up to 250 GPM and backwash requirements of up to 100 GPM. The Fleck 3900 valve body offers rugged construction and simple mechanical operation.
Fleck Control Valves automatically control the backwash and regeneration cycles for media filters and water softeners to keep your water treatment system working at optimal performance all the time. Fleck control valves are available in time-clock option which can be set to regenerate every day, every two to three days, or on certain days of the week. Fleck valves are also available in metered options for on-demand regeneration based on the volume of water that has been used. Manual operation, dP triggered regeneration, interlocking, series and remote start configurations are available upon request.
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Flow Rates: (50 PSI Inlet) – For Top Mount
Continuous (15 psi drop): 250 gpm
Peak (25 psi drop): 325 gpm
Max Backwash (25 psi drop): 100 gpm
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Valve Material: Lead-Free Brass
3" NPT In/Out Connections
6" – 8 Threaded or Flanged
1800 Brine System (softener)
Hard Water Bypass
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Valves shown 110v/60Hz
Valves shown with 100 gpm backwash flow (indicated by last 2 digits). Other backwash flows are available (max. 10 gpm)
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Features
Fleck 3900 Control Valves Features
Fully adjustable, 5-cycle control delivers upflow back wash, downflow brining, slow rinse, rapid rinse and down flow 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, corrosion-resistant, and UV stable
Choice of 7 or 12 day clock or meter initiated regeneration
TESTED AND CERTIFIED By the WQA To NSF/ANSI SDT. 61 Section 8 Material Safety Only and ANNEX "G"
Applications
Applications for Fleck 3900 Control Valves
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Commercial/Industrial Water Softeners up to 250 GPM Service flow and 100 GPM Backwash Flow Requirements
Commercial Applications
Industrial Applications
Pretreatment to RO and other Water Treatment Systems
Pretreatment to Ion Exchange Systems
Spot-Free Rinse/ Carwash
Large Office
Hotels and Resorts
Institution
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Beverage
Food Processing
Humidification
Misting
Manufacturing
Rinse Water
Bottled Water
Ice Makers
Labs
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Parts
| Optional Equipment for Fleck 3900 Control Valves |
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Fleck controls are available with the following options upon customer request:
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7 or 12 Day Timers, Electronic timer, Metered, Pressure Differential, and Other Regeneration Methods
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No Hard Water Bypass
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Auxiliary Switches
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Service Valve Operator
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Side Mount
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| Related Media Filtration Products |
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Mineral Tanks for Water Softeners and Media Filters
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Tank Adapters & Tank Accessories for Water Softeners & Media Filters
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Brine Tanks for Water Softeners
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DOWEX Ion Exchange Resins
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Filtration Media
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Literature
Literature for Fleck 3900 Control Valves
Fleck 3900 Spec Sheet
Fleck 3900 Service Manual
AMI Softeners and Media Filters Using Fleck Valves
Water Softener and Media Filtration Products
