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Clack WS-1 Series Metered Timer Control Valve

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Clack WS-1 Series Metered Timer Control Valve

Clack's WS1 Automatic valve is a state of the art control head designed for residential and commercial applications requiring flow rate up to 27 GPM (6.1 m3/hr. It has a backwash ability capable of servicing up to 22" diameter tanks.

The valve acts as a primary centre that directs and regulates all cycles of water softening or filtration. It can be set to perform downflow regeneration or simply backwash and rinse.

The valve comes in different program versions and is controlled by a solid state microprocessor with front panel setting and screen display.

The WS1 has 9 injector sizes to choose from for different draw rates.


  • 8 hr. battery back-up
  • Microswitches available
  • Front panel display with totalizer
  • Double backwash feature
  • Adjustable 6-cycle controls (time clock or meter control)
  • Four modes of operation: meter immediate, meter delayed, time clock, or pressure differential
  • Treated water regenerant refill
  • Twin alternating option
  • (for Softener, Greensand Filter & Catalytic Carbon Units)
Product Specs
  • Application: Softener or Filter
  • Valve Material: Noryl (1) or equivalent
  • In/Out Fitting: 3/4", 1" 1.25" NPT/BSPT
  • Service Rate (at 25 PSI drop w/bypass: 27 GPM (6.1 m3/hr
  • Operating Pressure: 20-125 PSI (1.4 - 8.6 bar)
  • Operating Water Temperature: 40°-100°F (4°-43°C)
  • Supply Voltage (2): 120V/60Hz or 230V/50Hz
  • Output Voltage: 12VAC
  • Tank Size: 6"-22" diameter (3)
  • Time Clock: Switches to 50 or 60Hz
  • Distributor Pilot: 1.05"(OD) 3/4" NPS
  • Drain Line: 3/4" standard, 1" optional
  • Brine Line: 3/8" or 1/2" Polytube
  • Mounting Base: 2 1/2" -8 NPSM

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