Clack V3180 Tank O-Ring

Description

The Clack V3180 Tank O-Ring (O-Ring 337) is a replacement sealing gasket used in Clack WS1 and WS1.25 control valves for water softeners and backwashing filtration systems. It sits between the control valve and the media tank opening, creating a watertight seal that prevents leaks at the tank connection.

This O-ring is a common service part used during valve installation, maintenance, or rebuilds to ensure proper sealing and reliable system performance.

Key Features

• OEM Replacement Part – Genuine style replacement for Clack valve systems
• Prevents Leaks – Creates a tight seal between the control valve and tank neck
• Durable Elastomer Material – Designed to handle water pressure and repeated regeneration cycles
• Easy Installation – Installs directly in the valve base before threading onto the mineral tank
• Long Service Life – Resistant to compression and water treatment chemicals

Compatibility

The Clack V3180 O-Ring is compatible with:

• Clack WS1
• Clack WS1.25
• Many private-label water softeners and backwashing filtration systems that use Clack control valves.

Typical applications include:

• Water softeners
• Iron and sulphur filters
• Backwashing carbon filters
• Neutralizing filters

Specifications

Part Number – V3180

O-Ring Size – 337

Outside Diameter – ~3-3/8″

Inside Diameter – ~3″

Thickness – ~3/16″

Valve Compatibility – Clack WS1 / WS1.25

Function – Valve-to-tank seal

Applications

The V3180 O-ring is installed at the base of the control valve where it threads into the mineral tank. It seals the connection and prevents water leakage during system operation and regeneration cycles.

Maintenance Tips

• Inspect the O-ring whenever removing the control valve from the tank.
• Replace if it shows cracks, flattening, or deformation.
• Apply food-grade silicone lubricant before reinstalling to improve sealing and extend lifespan.