Description
The Clack WS1 O-Ring (Part # V3163) is a small but critical sealing component used in Clack WS1 water softener control valves, specifically for the brine elbow and drain elbow connections. This O-ring ensures a tight, leak-free seal between fittings, helping maintain proper flow control during regeneration and normal operation.
Often referred to as O-ring #019, this part is designed to fit precisely within the elbow assemblies, preventing leaks and maintaining system pressure. It is a commonly replaced service item during routine maintenance or when addressing leaks in the brine or drain connections.
Key Features
- OEM Clack Replacement Part: Genuine part designed for exact fit and performance
- Leak Prevention: Creates a secure seal at brine and drain elbow connections
- Precision Fit (O-Ring #019): Ensures proper seating within WS1 valve components
- Durable Material: Built to withstand water pressure and chemical exposure
- Essential Maintenance Item: Frequently replaced during servicing or repairs
- Low-Cost, High Importance: Small component that plays a key role in system performance
Compatibility
The Clack WS1 O-Ring V3163 is compatible with:
- Clack WS1 control valves
- Clack WS1.25 control valves
- Brine elbow assemblies
- Drain elbow fittings (including 3/4″ drain elbow components)
It is also included in certain assemblies such as:
- Brine refill elbow assemblies
- Refill flow control (RFC) assemblies
- Drain line fitting assemblies
Specifications
- Part Number: V3163
- Type: O-Ring Seal
- Size Reference: #019 O-ring
- Material: Elastomer (water and chemical resistant)
- Application: Brine and drain elbow sealing
- System Type: Water softener and filtration control valves
Applications
The V3163 O-ring is used in key sealing points within the water softener valve, including:
- Brine line elbow connections
- Drain line elbow fittings
- Refill flow control assemblies
- General WS1 valve maintenance and repair
In Clack service diagrams, this O-ring is shown as part of the drain line fitting assembly, helping seal connections and prevent leaks during operation.
Maintenance
Routine inspection and replacement of O-rings like the V3163 is important to maintain system performance.
Recommended maintenance practices:
- Inspect for cracks, flattening, or wear during servicing
- Replace if any leakage is detected at elbow connections
- Lubricate lightly with food-grade silicone grease before installation
- Avoid over-tightening fittings to prevent O-ring damage
Replacing worn O-rings helps prevent leaks, pressure loss, and improper regeneration cycles, ensuring your water softener operates efficiently.

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