Composite Pouch Breather Valve | PE Flexible Packaging Vent Valve | HDPE One-Way Air Valve for Coffee Bags
Composite Pouch Breather Valve – One-Way Degassing Valve for Coffee Packaging
PRODUCT INFORMATIONS
Product Overview:
The Composite Pouch Breather Valve is a precision-engineered one-way degassing solution designed for flexible coffee packaging. This PE flexible packaging vent valve allows carbon dioxide (CO₂) to escape from freshly roasted coffee bags while blocking oxygen and moisture from entering. Made from food-grade HDPE material, this HDPE one-way air valve preserves coffee freshness, prevents bag inflation, and extends shelf life. Ideal for coffee roasters, private-label brands, and contract packagers seeking reliable, cost-effective valve solutions.
Key Features & Benefits
One-Way Degassing Technology
Valve opens at internal CO₂ pressure of 2–9 mbar to vent trapped gas, then auto-seals to block oxygen and prevent flavor oxidation.
Food-Grade HDPE Construction
FDA & EU food-contact HDPE. Durable, chemical-resistant and lightweight, lighter than metal parts.
Flexible Packaging Compatibility
PE flexible packaging vent valve, heat-sealable for manual & auto filling lines. Fits composite, stand-up, flat-bottom and kraft coffee bags.
Adjustable Venting Performance
Custom vent rate by adjusting pouch press holes. One valve suits all bag sizes.
Premium Aroma Retention
Vents CO₂ and aroma; one-way seal stops outside air from ruining coffee fragrance.
Brand-Ready Design
White, black & custom colors available. Custom valve position to avoid covering logos.
Application Scenarios
|
Item |
Specification |
|
Product name |
Coffee bag one-way degassing valve |
|
Product type |
HDPE one way air valve / composite pouch breather valve |
|
Body material |
Food-grade HDPE |
|
Membrane material |
Food-contact PE and silicone |
|
Available diameter |
20 mm / 24 mm / 28 mm / 30 mm |
|
Opening pressure |
2-9mbar |
|
Working temperature |
175-200C° |
|
Attachment method |
Heat-seal |
|
Colors |
White / custom |
|
Logo printing |
Available (OEM) |
|
Certifications |
FDA / EU food contact |
How It Works
· CO₂ builds up inside the pouch after roasting.
· Internal pressure opens the valve membrane.
· Gas escapes through the valve; pressure drops.
Valve reseals immediately. Oxygen and moisture cannot enter.
Key Features & Benefits
|
Feature |
Benefit |
|
One-way airflow |
Gas out, air blocked – coffee keeps its fresh taste |
|
Food-grade HDPE + silicone |
Safe direct food contact, export-ready materials |
|
Precise opening pressure |
Predictable degassing, no bag overpressure |
|
Compact design |
Fits pouch corners, easy stacking and shipping |
|
Strong sealing |
Stays airtight during handling and transit |
|
Custom branding |
Your logo on valve and packaging, brand consistency |
Applications
This one way air valve Perfect for coffee packaging and other flexible food packaging:
· Coffee bags – whole bean and ground
· Single-serve coffee pouches
· Nut and snack pouches
· Tea and dried food packaging
· Pet food pouches
· Other flexible packaging needing degassing
Why Choose Our HDPE One-Way Air Valve?
Proven Performance – Engineered with precision membrane technology that ensures reliable opening and closing cycles.
Quality Assured – Manufactured under ISO-certified processes with SGS-tested materials-.
Scalable Supply – High-volume production capacity with fast lead times (7–15 days)-.
Competitive Pricing – Cost-effective solution without compromising on quality or food safety compliance.
Global Compatibility – Designed to Goglio/WIPF industry-standard dimensions for seamless integration with existing packaging machinery.
How It Work
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