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Autotrol 255 Control Valve

Product Description

Pentair Water® offers a full range of Autotrol® Control Valves to meet all residential water conditioning applications.

Logix™ Series

740 Time Clock

  • Simple, economic electronic time clock (chronometric)
  • 7- or 99-day regeneration setting
  • High efficiency regeneration sequence
  • 12-volt operation
  • Filter or conditioner setting in one control
  • Operates 255, 263, 268 with one controller

742 Time Clock

  • Same features as the 740 Time Clock, plus:
  • Fully programmable cycle times
  • Salt setting in 1-pound increments
  • Optional no-salt detector
  • Operates 255, 263, 268, 278, and Magnum® IT with one controller
[custom-specifications]

760 Demand

Simple, economic electronic demand (volumetric)
Calendar override
12-volt operation
28-day variable reserve
High efficiency regeneration sequence
Automatic capacity calculations
Operates 255, 263, 268 with one controller
 
762 Demand
Same features as the 760, plus:
 
Fully programmable cycle times
Salt setting in 1-pound increments
Optional no-salt detector
Operates 255, 263, 268, 278, and Magnum IT with one controller
 
764 Demand
 
Same features as the 762, plus:
 
Multi-tank applications (twin alternating, multitank parallel)
Control lockout
Remote regeneration
 [/custom-specifications]
[custom-features]

Valve Connections

  • Tank Thread 2-1/2-inches – 8, male
  • Brine Line 1/4-inch or 3/8-inch NPT, male; air check built into valve
  • Distributor Tube 1.050 inches (27 mm) or (diameter) 13/16-inch (20.6 mm)
  • Distributor Tube 1-1/8 ± 1/8 inches (29 mm ± (length) 3 mm) above top of tank
  • Drain Line 1/2-inch (manifold dependent)

Flow Rates (Valve Only)

  • Service @ 15 psi (1.03 bar) drop 15.5 gpm (3.52 m3/h)
  • Backwash @ 25 psi (1.72 bar) drop 6.0 gpm (1.36 m3/h)
  • Service Cv = 3.99 (Kv = 3.4)
  • Backwash Cv = 1.20 (Kv = 1.0)
 [/custom-features]
[custom-usage]  [/custom-usage]
[custom-documents]Autotrol 255 Control Valve [/custom-documents]
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