Non-Filter One-Way Exhaust Valve for Coffee Bags | Food-Grade Degassing Valve for Stand Up Pouches
Composite Pouch Breather Valve | PE Flexible Packaging Vent Valve | HDPE One-Way Air Valve for Coffee Bags
PRODUCT INFORMATIONS
Product Overview:
Freshly roasted coffee releases CO₂ for days. Sealed bags can bulge. Seals can fail. Aroma can degrade. This non-filter one-way exhaust valve solves that problem.
It works as a stand up pouch exhaust valve and a coffee bean bag degassing valve. The food grade plastic air vent valve releases CO₂. It blocks oxygen, moisture, and contaminants. Bags stay flat. Coffee stays fresh.
This coffee bag exhaust valve is built for coffee roasters, packaging manufacturers, and food brands that need reliable bulk supply.
Key Features & Benefits
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Releases CO₂. Blocks oxygen ingress.
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Food-grade PE material. Safe for direct food contact.
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Sealing temperature: 163°C–168°C.
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Works with standard heat-seal equipment.
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Compatible with automatic and manual valve applicators.
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Custom colors, sizes, and OEM branding available.
Application Scenarios
| Parameter | Specification |
|---|---|
| Product Name | Non-Filter One-Way Exhaust Valve |
| Valve Type | One-way degassing valve, no filter |
| Material | Food-grade PE / HDPE |
| Diameter | 20mm / 22mm / 23mm (±0.1mm) |
| Thickness | 3mm–5.5mm |
| Weight | 0.55g–0.84g (±0.02g) |
| Color | Transparent / Black / White / Custom |
| Sealing Temperature | 175°C – 200°C |
| Opening Pressure | 2–3 mbar standard; 3–9 mbar high-flow option |
| Closing Pressure | ≤2 mbar |
| Flow Rate | 1.2–1.9 L/min at 6 mbar |
| Compatibility | Stand up pouches, flat bottom bags, side gusset bags, quad seal bags, kraft paper bags 80–120g/m² |
| Certification | Food-grade compliant; CE / ISO available upon request |
| MOQ | 100,000 PCS |
| Packaging | Plastic film + export carton; 20,000 pcs/ctn |
How It Works
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CO₂ builds inside the sealed bag after roasting or filling.
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Internal pressure reaches 2–3 mbar. The valve membrane lifts.
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Excess gas vents outward.
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Pressure drops. The valve reseals automatically.
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External air cannot enter. The valve opens only when internal pressure exceeds external pressure.
This prevents bag expansion, seal rupture, and oxidation. No manual intervention needed.
Applications
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Roasted coffee beans — whole bean and ground coffee packaging
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Specialty coffee pouches — subscription bags, retail bags, private-label packaging
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Food packaging — snack bags, pet food pouches, spice packaging
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Stand up pouches & flat bottom bags — valve position can be customized before artwork approval
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Kraft paper coffee bags — compatible with 80–120g/m² kraft paper structures
Ideal for coffee roasters, packaging manufacturers, OEM/ODM packaging companies, and food brands requiring bulk valve supply.
Ordering Information
| Item | Details |
|---|---|
| MOQ | 100,000 PCS per size/color |
| Sample Policy | Free samples available; dispatched within 48 hours |
| Lead Time | 7–15 days after sample approval, dependent on quantity |
| OEM / ODM | Supported — custom diameter, color, opening pressure, packaging |
| Shipping | Global delivery; export carton packing |
| Payment | T/T, Trade Assurance, or as agreed |
How It Work
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