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Clack WS1 EI Twin Valve
₺98,036.80
VAT included · Free shipping in Türkiye
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Installation is a service · plumbing is the customer’s responsibility
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Across Türkiye
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Across Türkiye · 1–3 business days
2-Year Warranty
Misuse is not covered.
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0850 304 95 25
- SKU
- WP-FV-006
- Category
- Water Treatment Spare Parts, Control Valves
Clack · USA · Twin (Duplex) Softening
Uninterrupted Soft Water with the Clack WS1 EI Twin Valve
The Clack WS1 EI Twin Valve is the brain of a two-tank (duplex) water softening system; when one tank goes into regeneration the other takes over, so soft water keeps flowing 24/7 without a drop of hard water even during the wash. Its reliable US-made construction and flow-controlled operation save both salt and water.
- System
- Duplex (2 Tanks)
- Water
- Uninterrupted
- Connection
- 1" · Flow-Controlled
01Problem & Solution
Hard Water During the Wash
Problem
A Single Tank Means Hard Water While It Washes
In a single-tank system the tank drops out of service when the valve regenerates, and for that period the system either delivers hard water or none at all. In plants where production cannot stop, that is a serious problem.
Solution
Two Tanks, Uninterrupted Flow
The Clack WS1 EI Twin Valve alternates between two tanks; while one is being washed with brine the other stays in service. Soft water therefore continues without a moment of hard, scale-forming water even during regeneration.
02Key Features
Uninterrupted, Smart, Durable
The Clack WS1 EI Twin Valve is built to meet the need for uninterrupted soft water with premium engineering.
Uninterrupted Soft Water
Because one tank stays in service while the other washes, hard water is never delivered.
Duplex (Two-Tank) Design
Alternates between the two tanks automatically, ideal wherever production cannot be interrupted.
Flow-Controlled Regeneration
Washes on actual water consumption to save salt and water; no wash is ever wasted.
Tonnage Set by Hardness
The wash can be set to a specific tonnage derived from the hardness reading and the resin quantity.
Digital Control
An easily programmed digital display makes service, adjustment and monitoring straightforward.
The Clack Guarantee
The durable, dependable engineering of the US-made Clack brand delivers long-lasting performance.
03Technical Specifications
Valve Specifications
| Feature | Value | What it does |
|---|---|---|
| Brand | Clack (USA) | The manufacturer. The valve and membrane brand decides how easily spares can be found. |
| Model | WS1 EI Twin | The manufacturer’s model code. Spares and service are matched by this code. |
| System Type | Duplex (Two-Tank) | The main problem the system solves. Pick the wrong type and the water does not improve. |
| Control | Flow-Controlled | How the unit is managed. Automatic control needs no daily attention. |
| Pipe Connection Diameter | 1" | |
| Wash Setting | Tonnage from Hardness + Resin | |
| During the Wash | The Other Tank Stays in Service | |
| Display | Digital | The user panel. Filter life and fault warnings are read here. |
| Weight | 2 kg | Product weight. For wall mounting, the supporting surface is chosen accordingly. |
| Dimensions | 14 × 25 × 25 cm | The outer dimensions of the unit. The cabinet or plant room has to be wider than this. |
04Applications
Where Is It Used?
The Clack WS1 EI Twin Valve is ideal for plants and businesses that need soft water 24/7 without interruption.
- Hotels
- Hospitals
- Factories
- Laundries
- Production Plants
- Large Residential Complexes
- Ahead of Boiler Feed
- 24/7 Production Lines
05How It Works
How Does the Clack WS1 EI Twin Valve Work?
Tank One in Service
The system softens water with the resin in the active tank and sends it to the line; the second tank waits on standby.
Flow Metering
The valve meters the water passing through and watches for the tonnage set from hardness and resin quantity to be reached.
Changeover to the Second Tank
Once that tonnage is reached the valve automatically brings the second tank into service; the flow is never interrupted.
The Idle Tank Regenerates
While the second tank works, the exhausted first tank is washed with brine and renewed; the user never notices any hard water.
Continuous Alternation
The tanks alternate between service and regeneration, producing soft water without interruption.
06Making the Right Choice
What Decides the Right Valve
When choosing the Clack WS1 EI Twin Valve, the need for uninterrupted supply and the flow rate must be assessed correctly.
How Critical Is Continuity
If soft water is essential during regeneration too, a twin arrangement is required; otherwise a single system may be enough.
Flow Requirement
The system’s peak flow must suit the 1″ connection capacity; higher flows call for a larger valve.
Water Hardness and Resin
The hardness level and the amount of resin in the tanks determine the wash tonnage and how often regeneration occurs.
Tank Compatibility
The compatibility of the two resin tanks with the valve and with each other should be checked before installation.
07Maintenance and Use
Notes That Keep It Performing
- There must always be enough salt in the brine tank; when the salt runs out neither tank can be renewed and the water turns hard again.
- Hardness and tonnage settings must be made correctly from a water analysis; incorrect settings lead either to wasted salt or to hard water.
- The piston, seal and O-ring assemblies in both tanks should be inspected periodically, and genuine Clack spare parts used.
- The first installation and programming are best carried out by a technical service engineer so that the twin synchronisation is correct.
08Frequently Asked Questions
Common Questions
What does the Clack WS1 EI Twin Valve do?
It manages regeneration in a two-tank (duplex) water softening system. While one tank is washed with brine it brings the other into service, so soft water continues uninterrupted with no hard water even during the wash.
How does it differ from a single valve?
In a single system the tank drops out of service when the valve regenerates and the system delivers hard water. A twin valve alternates between two tanks and keeps soft water flowing even during regeneration, which is why it is preferred wherever production must continue.
Does the water turn hard during the wash?
No. The other tank stays in service during the automatic wash, so the system never delivers hard, scale-forming water. The user carries on using soft water without noticing which tank is washing.
How is the wash tonnage determined?
A tonnage setting is derived from the hardness reading of the water to be treated and the amount of resin in the unit. That way the valve switches to the other tank and starts regeneration at exactly the right moment, when the resin capacity is exhausted.
What is the connection size, and is a larger one available?
The pipe connection is 1″. Where the inlet/outlet connection needs to be larger than 1″, higher-flow digital flow-controlled or volumetric softener valve options should be considered.
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Questions & Answers
Questions asked about this product
Questions on compatibility, capacity and installation are answered by our technical team. The answers stay public — so the next person with the same question can see them too.
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Installation
Installation is a service · plumbing is the customer’s responsibilityFitting the part falls under our service work and is subject to a service fee. Plumbing labour and any pipes, valves and fittings are not included in the price; these items are the customer’s responsibility.
Warranty
2 years · manufacturerThis product is covered by a 2-year manufacturer warranty. During the warranty period, labour and parts are free for faults arising from manufacture. Consumables such as filters, membranes and resin are outside warranty cover — they are replaced when their service life ends; they do not fail.
Withdrawal and returns
Distance sales agreementThe right of withdrawal and the return terms are set out in detail in the distance sales agreement. Systems that have been installed and commissioned, and made-to-order products, are outside its scope.
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