Fleck 2750

Summary

Product identification

• Model: 2750
• Type: 1" Control Valve
• Part No.: 40737 Rev B

Features

• Suitable for large residential/light commercial applications
• Fully adjustable, 5-cycle control (upflow backwash, downflow brining and slow rinse, rapid rinse, timed brine refill, and downflow service)
• Backwash capacity handles tanks up to 24" diameter
• Solid, lead-free brass valve body
• Hydraulically-balanced piston, seal, and spacer design

Options

• Filter or softener control valves
• Hot water operation:
  • Up to 150°F for 1700 brine system or metered control valve
  • Up to 180°F for 1600 brine system or metered control valve
• Manual operation (filter or softener)
• Service valve operator
• No hard water bypass
• Electronic timer (SXT, XT, 3214NXT, or 3200NXT)
• Environmental cover
• Auxiliary switches
• Meter delayed or immediate initiated regeneration

Valve Specifications

• Valve material: Lead-free brass
• Inlet/Outlet: 1" NPTM
• Cycles: 5
• Flow Rates (50 psi Inlet) - Valve Alone:
  • Continuous (15 psi drop): 26 GPM
  • Peak (25 psi drop): 33 GPM
  • Cv (flow at 1 psi drop): 6.8
  • Max. backwash (25 psi drop): 25 GPM
• Regeneration: Downflow only
• Adjustable cycles: Yes
• Time available per cycle:
  • Electromechanical: 164 minutes
  • SXT: 199 minutes
  • NXT: 240 minutes
  • XT: 240 minutes

Meter Information

• Meter accuracy:
  • 0.75" - 0.25 - 15 GPM: +/- 5%
  • 1" - 0.7 - 40 GPM: +/- 5%
• Meter capacity range (gal.):
  • Standard: 310 - 5,270
  • Extended: 1,550 - 26,350
  • SXT: 1 - 999,900
  • NXT: 9,900,000
  • XT: 1,000 - 9,900,000

Mechanical / Hydraulic

• Distributor pilot: 1.05" O.D.
• Drain line: 3/4" NPTM
• Injector brine system:
  • 1600 & 1050: 3/8"
  • 1700 & 1710: 1/2"
• Brine line: 3/8" & 1/2"
• Mounting base: 2-1/2" - 8 NPSM
• Height from top of tank: 6-1/2"

Typical Applications

• Water softener tanks: 10" - 24" diameter
• Filter tanks: 10" - 21" diameter

Electrical

• Power rating: 24 v, 110 v, 220 v - 50 Hz, 60 Hz
• Transformers (24 VAC Pentair):
  • 115 VAC +/- 20% Input, 24 VAC Output
  • 230 VAC +/- 20% Input, 24 VAC Output

Operating Limits

• Working pressure: 20 - 125 psi
• Hydrostatic pressure: 300 psi
• Temperature: 34° - 110°F

Additional Information

• Estimated shipping weight:
  • Time clock valve: 13 lbs.
  • Metered valve: 26 lbs.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror