1" Control Valve
6 models in this family. Representative models: Clack 2572 WS1, Clack 2607 WS1CS, Clack 2610 WS1CI.
International brand dossier
Clack Control Valves
Clack Corporation is an OEM-focused water-treatment component manufacturer known for control valves, mineral and retention tanks, brine systems, filter housings, RO accessories, and filtration media.
Its WS control valves are positioned for flexible high-flow softening and filtration applications, so selection should focus on valve platform, programming, stack technology, service parts, and tank compatibility.
Clack Control Valves's position in control valves is defined by product families such as 1" Control Valve, 1,25" Control Valve, 1,5" Control Valve and 2" Control Valve.The portfolio is best understood inside softening, filtration, residential and commercial pretreatment, small plant automation, and packaged treatment trains, where engineers compare the technology route, family boundaries, and duty fit before narrowing to individual models.Representative series on this page include Clack 2572 WS1, Clack 2607 WS1CS and Clack 2610 WS1CI.First-screening cues are valve size, flow capacity, regeneration logic, brine or tank fit, and spare-parts support.
28
Indexed models
6
Product families
0
Subgroups
Product range and selection
How to choose Clack Control Valves
This section answers two questions: which main product families Clack offers, and which parameters to compare before choosing a specific model.
Step 1: Choose a product family by application
The main families shown on this page are 1" Control Valve, 1,25" Control Valve, 1,5" Control Valve, and 2" Control Valve. Start with the treatment objective, equipment format, and operating duty, then use the model index below to compare exact specifications.
Step 2: Confirm the model by key parameters
After choosing a product family, compare service flow, regeneration logic, valve size, and controller function. Replacement projects should also verify installation or loading conditions, interfaces, and compatibility with the existing system; new projects should consider operating practice, maintenance, and spare-parts or consumables availability.
Product family overview
6 product familys on this page.
1,25" Control Valve
6 models in this family. Representative models: Clack-2611-WS1.25-L, Clack 2620 WS1.25EI, Clack 2664 WS1.25TC.
1,5" Control Valve
3 models in this family. Representative models: Clack 2608 WS1.5EE, Clack 2619 WS1.5EI, Clack 2667 WS1.5CI.
2" Control Valve
9 models in this family. Representative models: Clack 2678 WS2H, Clack 2811 WS2EE, Clack 2814 WS2EI.
3" Control Valve
1 model in this family. Representative models: Clack 2869 WS3.
1" Control Twin Valve
3 models in this family. Representative models: Clack 2983 WS1EE, Clack 2985 WS1EI, Clack 2987 WS1CI.
Quick Model Index
Fast lookup for 28 indexed products
The table is intentionally compact: use it to scan model names, product families, and source links quickly. Open the profile cards below when you want richer context.
1" Control Valve
6 indexed models
| Model | Application | Sources |
|---|---|---|
| Clack 2572 WS1 | The Clack WS1 is a 1-inch Water Specialist control valve for water softeners and filters, certified to NSF/ANSI 44, 61, and 372. | |
| Clack 2607 WS1CS | This Clack WS1CS is a Water Specialist 1” control valve designed for water softening and filtration applications. It features a Noryl valve body, NSF/ANSI 44, 61. | |
| Clack 2610 WS1CI | The Clack WS1CI is a solid-state microprocessor-controlled valve for water softeners and filters. | |
| Clack 2618 WS1TC | The Clack WS1TC Water Specialist Control Valve is designed for water softening and filtration applications. This valve features NSF/ANSI 44, 61, and 372 certifications. | |
| Clack 2663 WS1EI | The Clack 2663 WS1EI is an electronic control valve designed for water treatment systems. | |
| Clack 2856 WS1EE | The Clack WS1EE is a Water Specialist control valve designed for water softener and filter applications, suitable for tank diameters from 6" to 21". |
1,25" Control Valve
6 indexed models
| Model | Application | Sources |
|---|---|---|
| Clack-2611-WS1.25-L | This Clack Water Specialist control valve is designed for automated water softener and filter applications. It features a Noryl valve body, supports various regenerants. | |
| Clack 2620 WS1.25EI | The Clack WS1.25EI is a Water Specialist control valve for water softeners and filters, featuring solid-state microprocessor control with a front panel display. | |
| Clack 2664 WS1.25TC | The Clack Water Specialist 1.25” TC Control Valve is designed for water softener and filter applications, featuring NSF/ANSI 44, 61, and 372 certifications. | |
| Clack 2665 WS1.25CS | The Clack WS1.25CS is a control valve designed for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications. | |
| Clack 2666 WS1.25CI | The Clack WS1.25CI Water Specialist control valve is designed for water softening and filtration applications. | |
| Clack 2867 WS1.25EE | The Clack WS1.25EE Water Specialist Control Valve offers a solid-state microprocessor with front panel settings and four regeneration initiation methods. |
1,5" Control Valve
3 indexed models
| Model | Application | Sources |
|---|---|---|
| Clack 2608 WS1.5EE | The Clack WS1.5EE is a 1.5-inch meter control valve designed for water softeners and filters up to 30 inches in diameter. It features a lead-free brass valve body. | |
| Clack 2619 WS1.5EI | This Clack WS1.5EI is a 1.5-inch top mount control valve for mid-size commercial and industrial water softening or filtering applications. | |
| Clack 2667 WS1.5CI | This Clack WS1.5CI is a control valve designed for water softeners and filters up to 30 inches in diameter, featuring an epoxy coated lead-free brass body. |
2" Control Valve
9 indexed models
| Model | Application | Sources |
|---|---|---|
| Clack 2678 WS2H | The Clack 2678 WS2H is a 2-inch control valve for water softeners and filters, featuring lead-free brass construction and NSF/ANSI 44, 61, and 372 certifications. | |
| Clack 2811 WS2EE | This Clack 2811 WS2EE is a 2-inch top-mount control valve designed for commercial and industrial water treatment applications. | |
| Clack 2814 WS2EI | The Clack WS2EI is a 2-inch top-mount control valve designed for commercial and industrial water softening and filtration applications. | |
| Clack 2828 WS2CI | The Clack WS2CI is a 2" top-mount control valve for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications. It operates at pressures from 1.4 to 8. | |
| Clack 2861 WS2CIQC | The Clack WS2CIQC is a 2-inch control valve for water softeners and filters, featuring a lead-free brass body and NSF/ANSI 44, 61, and 372 certifications. | |
| Clack 2862 WS2EIQC | The Clack 2862 WS2EIQC is a Water Specialist 2-inch electronic control valve for water softener and filter tank applications. | |
| Clack 2864 WS2EEQC | The Clack 2864 WS2EEQC is a Water Specialist 2-inch control valve designed for commercial and industrial water softeners and filters. | |
| Clack 2942 WS2SP | The Clack WS2SP is a 2-inch Water Specialist control valve for backwash filters and water softeners up to 48-inch diameter tanks. | |
| Clack 2943 WS2SPQC | This Clack Water Specialist 2” SP/QC control valve is designed for water softening and filtering applications with its lead-free brass body. |
3" Control Valve
1 indexed model
1" Control Twin Valve
3 indexed models
| Model | Application | Sources |
|---|---|---|
| Clack 2983 WS1EE | The Clack 2983 WS1EE is an automatic control valve designed for water treatment applications. | |
| Clack 2985 WS1EI | This is a Clack WS1EI twin alternating control valve for water softener and filter applications up to 21" diameter. | |
| Clack 2987 WS1CI | This Clack WS1CI is a twin alternating control valve designed for water softeners and filters, featuring Noryl construction and NSF/ANSI 44, 61, and 372 certifications. |
Brand Technical Documents
28 readable document pages
These document pages collect product manuals, model notes, accessory documents, and application files for this brand in the current category. Open the PDF when original tables, diagrams, or full manuals are needed.
Clack 2572 WS1
The Clack WS1 is a 1-inch Water Specialist control valve for water softeners and filters, certified to NSF/ANSI 44, 61, and 372.
Clack 2607 WS1CS
This Clack WS1CS is a Water Specialist 1” control valve designed for water softening and filtration applications. It features a Noryl valve body, NSF/ANSI 44, 61.
Clack 2608 WS1.5EE
The Clack WS1.5EE is a 1.5-inch meter control valve designed for water softeners and filters up to 30 inches in diameter. It features a lead-free brass valve body.
Clack 2610 WS1CI
The Clack WS1CI is a solid-state microprocessor-controlled valve for water softeners and filters.
Clack 2618 WS1TC
The Clack WS1TC Water Specialist Control Valve is designed for water softening and filtration applications. This valve features NSF/ANSI 44, 61, and 372 certifications.
Clack 2619 WS1.5EI
This Clack WS1.5EI is a 1.5-inch top mount control valve for mid-size commercial and industrial water softening or filtering applications.
Clack 2620 WS1.25EI
The Clack WS1.25EI is a Water Specialist control valve for water softeners and filters, featuring solid-state microprocessor control with a front panel display.
Clack 2663 WS1EI
The Clack 2663 WS1EI is an electronic control valve designed for water treatment systems.
Clack 2664 WS1.25TC
The Clack Water Specialist 1.25” TC Control Valve is designed for water softener and filter applications, featuring NSF/ANSI 44, 61, and 372 certifications.
Clack 2665 WS1.25CS
The Clack WS1.25CS is a control valve designed for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications.
Clack 2666 WS1.25CI
The Clack WS1.25CI Water Specialist control valve is designed for water softening and filtration applications.
Clack 2667 WS1.5CI
This Clack WS1.5CI is a control valve designed for water softeners and filters up to 30 inches in diameter, featuring an epoxy coated lead-free brass body.
Clack 2678 WS2H
The Clack 2678 WS2H is a 2-inch control valve for water softeners and filters, featuring lead-free brass construction and NSF/ANSI 44, 61, and 372 certifications.
Clack 2811 WS2EE
This Clack 2811 WS2EE is a 2-inch top-mount control valve designed for commercial and industrial water treatment applications.
Clack 2814 WS2EI
The Clack WS2EI is a 2-inch top-mount control valve designed for commercial and industrial water softening and filtration applications.
Clack 2828 WS2CI
The Clack WS2CI is a 2" top-mount control valve for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications. It operates at pressures from 1.4 to 8.
Clack 2856 WS1EE
The Clack WS1EE is a Water Specialist control valve designed for water softener and filter applications, suitable for tank diameters from 6" to 21".
Clack 2861 WS2CIQC
The Clack WS2CIQC is a 2-inch control valve for water softeners and filters, featuring a lead-free brass body and NSF/ANSI 44, 61, and 372 certifications.
Clack 2862 WS2EIQC
The Clack 2862 WS2EIQC is a Water Specialist 2-inch electronic control valve for water softener and filter tank applications.
Clack 2864 WS2EEQC
The Clack 2864 WS2EEQC is a Water Specialist 2-inch control valve designed for commercial and industrial water softeners and filters.
Clack 2867 WS1.25EE
The Clack WS1.25EE Water Specialist Control Valve offers a solid-state microprocessor with front panel settings and four regeneration initiation methods.
Clack 2869 WS3
This Clack WS3 Water Specialist Control Valve offers advanced automation for water softeners and filters.
Clack 2942 WS2SP
The Clack WS2SP is a 2-inch Water Specialist control valve for backwash filters and water softeners up to 48-inch diameter tanks.
Clack 2943 WS2SPQC
This Clack Water Specialist 2” SP/QC control valve is designed for water softening and filtering applications with its lead-free brass body.
Clack 2983 WS1EE
The Clack 2983 WS1EE is an automatic control valve designed for water treatment applications.
Clack 2985 WS1EI
This is a Clack WS1EI twin alternating control valve for water softener and filter applications up to 21" diameter.
Clack 2987 WS1CI
This Clack WS1CI is a twin alternating control valve designed for water softeners and filters, featuring Noryl construction and NSF/ANSI 44, 61, and 372 certifications.
Clack-2611-WS1.25-L
This Clack Water Specialist control valve is designed for automated water softener and filter applications. It features a Noryl valve body, supports various regenerants.
AI-ready Product Profiles
Product cards for screening and future AI matching
These cards are designed as reusable product profiles: the same format can later appear in AI search results, shortlist views, and assisted product matching.
1" Control Valve
6 profile cards
Control Valves
Product profile
Clack 2572 WS1
The Clack WS1 is a 1-inch Water Specialist control valve for water softeners and filters, certified to NSF/ANSI 44, 61, and 372.
Control Valves
Product profile
Clack 2607 WS1CS
This Clack WS1CS is a Water Specialist 1” control valve designed for water softening and filtration applications. It features a Noryl valve body, NSF/ANSI 44, 61.
Control Valves
Product profile
Clack 2610 WS1CI
The Clack WS1CI is a solid-state microprocessor-controlled valve for water softeners and filters.
Control Valves
Product profile
Clack 2618 WS1TC
The Clack WS1TC Water Specialist Control Valve is designed for water softening and filtration applications. This valve features NSF/ANSI 44, 61, and 372 certifications.
Control Valves
Product profile
Clack 2663 WS1EI
The Clack 2663 WS1EI is an electronic control valve designed for water treatment systems.
Control Valves
Product profile
Clack 2856 WS1EE
The Clack WS1EE is a Water Specialist control valve designed for water softener and filter applications, suitable for tank diameters from 6" to 21".
1,25" Control Valve
6 profile cards
Control Valves
Product profile
Clack-2611-WS1.25-L
This Clack Water Specialist control valve is designed for automated water softener and filter applications. It features a Noryl valve body, supports various regenerants.
Control Valves
Product profile
Clack 2620 WS1.25EI
The Clack WS1.25EI is a Water Specialist control valve for water softeners and filters, featuring solid-state microprocessor control with a front panel display.
Control Valves
Product profile
Clack 2664 WS1.25TC
The Clack Water Specialist 1.25” TC Control Valve is designed for water softener and filter applications, featuring NSF/ANSI 44, 61, and 372 certifications.
Control Valves
Product profile
Clack 2665 WS1.25CS
The Clack WS1.25CS is a control valve designed for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications.
Control Valves
Product profile
Clack 2666 WS1.25CI
The Clack WS1.25CI Water Specialist control valve is designed for water softening and filtration applications.
Control Valves
Product profile
Clack 2867 WS1.25EE
The Clack WS1.25EE Water Specialist Control Valve offers a solid-state microprocessor with front panel settings and four regeneration initiation methods.
1,5" Control Valve
3 profile cards
Control Valves
Product profile
Clack 2608 WS1.5EE
The Clack WS1.5EE is a 1.5-inch meter control valve designed for water softeners and filters up to 30 inches in diameter. It features a lead-free brass valve body.
Control Valves
Product profile
Clack 2619 WS1.5EI
This Clack WS1.5EI is a 1.5-inch top mount control valve for mid-size commercial and industrial water softening or filtering applications.
Control Valves
Product profile
Clack 2667 WS1.5CI
This Clack WS1.5CI is a control valve designed for water softeners and filters up to 30 inches in diameter, featuring an epoxy coated lead-free brass body.
2" Control Valve
9 profile cards
Control Valves
Product profile
Clack 2678 WS2H
The Clack 2678 WS2H is a 2-inch control valve for water softeners and filters, featuring lead-free brass construction and NSF/ANSI 44, 61, and 372 certifications.
Control Valves
Product profile
Clack 2811 WS2EE
This Clack 2811 WS2EE is a 2-inch top-mount control valve designed for commercial and industrial water treatment applications.
Control Valves
Product profile
Clack 2814 WS2EI
The Clack WS2EI is a 2-inch top-mount control valve designed for commercial and industrial water softening and filtration applications.
Control Valves
Product profile
Clack 2828 WS2CI
The Clack WS2CI is a 2" top-mount control valve for water softeners and filters, featuring NSF/ANSI 44, 61, and 372 certifications. It operates at pressures from 1.4 to 8.
Control Valves
Product profile
Clack 2861 WS2CIQC
The Clack WS2CIQC is a 2-inch control valve for water softeners and filters, featuring a lead-free brass body and NSF/ANSI 44, 61, and 372 certifications.
Control Valves
Product profile
Clack 2862 WS2EIQC
The Clack 2862 WS2EIQC is a Water Specialist 2-inch electronic control valve for water softener and filter tank applications.
Show remaining 2" Control Valve profiles (3)
Control Valves
Product profile
Clack 2864 WS2EEQC
The Clack 2864 WS2EEQC is a Water Specialist 2-inch control valve designed for commercial and industrial water softeners and filters.
Control Valves
Product profile
Clack 2942 WS2SP
The Clack WS2SP is a 2-inch Water Specialist control valve for backwash filters and water softeners up to 48-inch diameter tanks.
Control Valves
Product profile
Clack 2943 WS2SPQC
This Clack Water Specialist 2” SP/QC control valve is designed for water softening and filtering applications with its lead-free brass body.
3" Control Valve
1 profile card
Control Valves
Product profile
Clack 2869 WS3
This Clack WS3 Water Specialist Control Valve offers advanced automation for water softeners and filters.
1" Control Twin Valve
3 profile cards
Control Valves
Product profile
Clack 2983 WS1EE
The Clack 2983 WS1EE is an automatic control valve designed for water treatment applications.
Control Valves
Product profile
Clack 2985 WS1EI
This is a Clack WS1EI twin alternating control valve for water softener and filter applications up to 21" diameter.
Control Valves
Product profile
Clack 2987 WS1CI
This Clack WS1CI is a twin alternating control valve designed for water softeners and filters, featuring Noryl construction and NSF/ANSI 44, 61, and 372 certifications.