Clack WS1.5SP Control Valve

Product Description

In 2001, after years of development and extensive field testing, 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.

Water Specialist 1.5” SP Control Specifications
Inlet/Outlet Fittings 1.5” FNPT
Cycles up to 6
Valve Material Lead free brass
Regeneration downflow
Flow Rate
Service @15 psi drop (includes bypass and meter) 70 gpm
Backwash @ 25 psi drop (includes bypass) 52 gpm
Cv Service 18.1
Cv Backwash . 10.4
Operating Pressures
Minimum/Maximum 20 psi – 125 psi
Operating Temperatures
Minimum/Maximum 40° – 110° F
Accuracy . ± 5%
Flow Rate Range. . 0.5 – 75 GPM
Gallon Range 20 – 1,500,000 gallons
Totalizer 1 – 9,999,000 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”)
Weight 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 1-95
2. Rinse 1-180
3. Pause 1-180
4. Brine 1- 95
5. Refill Softner 0.1-99
6. Refill Filter  
  • Solar panel or AC adapter recharges 6 "AA" re-chargable Nickel Metal Hydride Batteries 
  • Can be programmed for automatic variable reserve, based on water usage history for high efficiency 
  • 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/slow rinse, second backwash, fast rinse, refill and downflow service 
  • Coin Cell Lithium battery back-up with 8 hour carry over of time of day 
  • 12-volt output AC Adapter provides safe and easy installation 
  • 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 
  • Post treated water regenerant refill 
  • Reliable and proven DC drive
  • Mid-size commercial/industrial applications
[custom-documents] [/custom-documents]
(1 review) Write a Review
  • 5
    No quality problem ever

    Posted by Luis R. on Nov 16th 2019

    No apparent issues after 2 months of performance. Highly reliable and good efficiency

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