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Made by Pure Aqua, Inc.



industrial & commercial water treatment systems worldwide by pure aqua, inc.
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Water Filter & Softeners with Clack WS1.5EE Control Valve

Product Description

Clack introduced its first line of residential control valves. The goal was to design a family of control valves for the water treatment professional that covered the greatest range of applications, while having the greatest commonality of parts. All Clack valves incorporate patented “stack technology” and feature state-of-the-art electronics and programming software.


Inlet/Outlet Fittings

1.5” Female BSPT or NPT


 up to 9

Valve Material 

Noryl (1) or equivalent



Flow Rate


Service @15 psi drop (includes bypass and meter)

265 lpm (15.9 m3 /h) (70 gpm)

Backwash @ 25 psi drop (includes bypass)

197 lpm (11.8 m3 /h) (52 gpm)

Cv Service


Cv Backwash .


Operating Pressures



20 psi – 125 psi

Operating Temperatures



40º – 110º F




. ± 5%

Flow Rate Range.

. 2 - 284 lpm (0.5 - 75 gpm)

Gallon Range

. 0.02 - 5,700 m3


264 - 26,417,000 gallons

Dimensions & Weight


Distributor Pilot

1.90" OD Pipe (¾" NPS)

Drain Line

1.25” Female NPT

Brine Line

¾” Female NPT

Mounting Base

4" - 8 UN

Height From Top Of Tank

 191 mm (7.5”)


9.5 kg (21 lbs.)

Electrical Specifications


Supply Voltage

120V AC

Supply Frequency

60 Hz

Output Voltage

12V AC

Output Current

500 mA

Tank Applications


Water Softener

12” – 30” diameter

Water Filter (2)

12” – 30” diameter

Cycles of Operation (Softener / Filter downflow)


1. Backwash 1st


2.  Regenerate Draw/Slow Rinse (downflow)


3. Backwash 2nd (upflow)

1- 95

4. Fast Rinse (downflow)


5.  Regenerant Refill

0.1-99.0 or off

6. Service (downflow)

  • 1.5" top mount control valve suited for mid-size commercial/industrial applications 
  • Epoxy coated lead free brass valve body* 
  • Economical stainless steel optional meter assembly 
  • Service flow rate of 70 gpm, backwash 52 gpm 
  • Solid state microprocessor with easy access front panel settings
  •  Front panel display for time of day, days until next regeneration, volume remaining, current flow rate and total volume used (Totalizer) 
  • Four methods to initiate regeneration; meter immediate, meter delayed, time clock delayed or pressure differential 
  • Optional double backwash feature offers optimum regeneration, cleaning ability and efficiency 
  • Fully adjustable cycle times with 6-cycle control delivers controlled backwash, downflow brining or upflow brining, slow rinse, second backwash, fast rinse, refill and downflow service 
  • Coin Cell Lithium battery back-up with a 8 hour carry over 
  • 12-volt output AC Adapter provides safe and easy installation 
  • Post treated water regenerant refill 
  • Patented one piece expanding seal spacer stack assembly U.S. Patent 6,402,944 
  • Patented linearly reciprocating piston operation U.S. Patent 6,444,127 
  • Reliable and proven DC drive
[custom-usage] [/custom-usage]
[custom-documents]Clack Control Valve WS1.5EE Series [/custom-documents]
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