Valpar Barriermaster FlavourLock 3/8″ Beer & Beverage Dispense Line

Premium barrier tubing for beer, wine and soft drink dispense. Valpar Barriermaster FlavourLock locks in carbonation and flavour while preventing oxygen ingress and cross-contamination.

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Description

Advanced 3/8″ Beverage Dispense Tubing for Maximum Product Protection

Valpar Barriermaster FlavourLock is one of the most advanced beverage dispense lines available, developed by Valpar Micro Matic to meet the demanding requirements of breweries, pubs, bars, wine dispense systems and home keg setups.

Featuring a high-performance multilayer construction with an exceptional gas and flavour barrier layer, FlavourLock is specifically designed to protect beverage quality from keg to glass. Whether dispensing beer, wine, cider, soft drinks or flavoured beverages, this premium tubing helps maintain carbonation, preserve flavour integrity and reduce the risk of contamination.

Please note: We supply the clear line variant of Barriermaster FlavourLock.

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Key Features & Benefits

• 3/8″ beverage dispense tubing
• Exceptional gas and flavour barrier technology
• Practically zero oxygen ingress
• Outstanding CO₂ and N₂ retention
• Prevents flavour permeation and cross-contamination
• Ultra-smooth taint-free inner surface
• Significantly reduced bacterial and yeast adhesion
• Flexible and easy to install
• Compatible with both barb and push-fit fittings
• Suitable for beer, wine, cider and soft drink dispense

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Why Choose 3/8″ Beer Line?

The 3/8″ (9.5mm) internal diameter format is one of the most commonly used sizes in commercial beverage dispense systems and larger home bar installations.

Its larger bore makes it particularly suitable for:

• Beer line trunking and python systems
• Long dispense runs
• Commercial cellar-to-bar installations
• Beer, cider and wine dispense
• Soft drink and post-mix systems
• Home bar and keg dispense systems

When paired with the correct fittings and flow control setup, 3/8″ tubing offers excellent flow characteristics while helping maintain beverage quality throughout the entire dispense system.

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Lock In Flavour

Traditional dispense tubing can allow strong flavours and aromas to migrate through the tube wall over time. This can become problematic when dispensing products such as:

• Root beer
• Flavoured beers
• Fruit beers
• Pastry stouts
• Hard sodas
• Botanical beverages
• Wine

Barriermaster FlavourLock has been specifically engineered to prevent flavour permeation, helping eliminate cross-contamination between adjacent product lines.

In scientific testing using Root Beer over a 16-week period, no flavour permeation was detected.

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Exceptional Gas Retention

Maintaining carbonation is critical to product quality.

Barriermaster FlavourLock provides exceptional gas barrier properties that help preserve:

• CO₂ levels in beer and cider
• Nitrogen content in stout and nitro beverages
• Carbonation levels in soft drinks
• Freshness in wine dispense systems

Compared with equivalent polyethylene dispense tubing, FlavourLock is reported to be at least 80 times more effective at preventing gas permeation, helping maintain beverage quality even during extended dwell times.

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Ideal for Modern Craft Beer Dispense

Modern craft beer often presents unique challenges for dispense systems. Strongly flavoured products can leave residual flavour compounds within traditional beer line tubing, potentially affecting other products on the same system.

Barriermaster FlavourLock is particularly well suited to:

• Fruit beers
• Pastry stouts
• Flavoured lagers
• Sour beers
• Botanical beers
• Hard sodas

Its advanced barrier layer helps prevent flavour migration and protects neighbouring product lines, making it an excellent choice for breweries, taprooms and bars offering diverse product ranges.

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Excellent Choice for Wine Dispense

Oxygen is one of the biggest enemies of wine quality.

The near-zero oxygen ingress characteristics of Barriermaster FlavourLock make it particularly suitable for:

• Wine-on-tap systems
• Commercial wine dispense
• Cellar wine systems
• Premium hospitality installations

By limiting oxygen exposure, wine freshness and flavour stability can be maintained for longer.

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Improved Hygiene Performance

The ultra-smooth inner layer reduces:

• Yeast adhesion
• Bacterial growth
• Biofilm formation

This helps support:

• Longer cleaning intervals
• Easier line cleaning
• Improved beverage quality
• Reduced maintenance requirements

For breweries, pubs and commercial dispense systems, this can contribute to both improved product consistency and lower operating costs.

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Suitable for Commercial and Home Bar Installations

Whether you’re operating a busy brewery taproom, pub, mobile bar, restaurant or home dispensing setup, maintaining beverage quality between keg and glass is essential.

Valpar Barriermaster FlavourLock helps preserve:

• Carbonation
• Flavour stability
• Product freshness
• Hygiene standards
• Dispense consistency

making it a popular choice among professional dispense installers, breweries and serious home bar enthusiasts alike.

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Compatibility

Compatible with:

• Push-fit fittings
• Barb fittings
• Beer line connectors
• Commercial dispense systems
• Home keg systems
• Beer engines and dispense systems
• Python and trunking systems

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Frequently Asked Questions

Can Barriermaster FlavourLock be used for beer?

Yes. It has been specifically developed for beer dispense applications and helps maintain carbonation while reducing microbial growth within the line.

Can this tubing be used for wine dispense?

Yes. Its exceptional oxygen barrier properties make it particularly suitable for wine dispense systems where freshness and flavour stability are critical.

Can I use this line for flavoured beers?

Absolutely. FlavourLock was developed to minimise flavour permeation and cross-contamination, making it ideal for fruit beers, flavoured lagers, pastry stouts and other speciality beverages.

Is Barriermaster FlavourLock suitable for home bars?

Yes. While widely used in commercial installations, it is equally suitable for home keg systems, home bars and advanced dispense setups.

Can it be used with push-fit fittings?

Yes. Barriermaster FlavourLock is compatible with both push-fit and barb fitting systems.

NOTE: This is for a complete roll of uncut beer line, if you require beer line cut to set lengths please purchase the product where it is sold by the metre.

• Exceptional Gas Retention for Fresher Beer
  Maintains CO₂ and nitrogen levels, helping preserve carbonation and dispense quality.
• Advanced Flavour Barrier Technology
  Prevents flavour migration and cross-contamination between adjacent beverage lines.
• Virtually Zero Oxygen Ingress
  Protects beer, wine and soft drinks from oxidation, preserving freshness for longer.
• Ultra-Smooth Hygienic Inner Layer
  Reduces bacterial growth and yeast adhesion for improved beverage quality and easier cleaning.
• Ideal for Beer, Wine & Flavoured Beverages
  Premium 3/8″ tubing suitable for commercial dispense systems, python lines and home bars.

For more information about brewing, kegging, packaging beer and serving beer be sure to check out our Help Centre where you can find information covering all subjects for brewers of all levels.

And be sure to check out our YouTube channel where you will find videos about brewing, beers, breweries and products.