Dongguan Xinshengji Hardware Products Co., Ltd
| Supply Ability | 6000000 |
| Body material | Food-grade PE |
| Working temperature | 175-200C° |
| Opening pressure | 2-9mbar |
| Branding | OEM Logo Embossing |
| Payment Terms | T/T,L/C,D/A,D/P |
| Membrane material | Food-contact silicone |
| Capacity | 10,000,000 Pcs / Week |
| Packaging Details | 57*37*42cm |
| Attachment method | Heat-seal |
| Delivery Time | 5-7 days |
| Product type | HDPE one way air valve / composite pouch breather valve |
| Product name | Coffee bag one-way degassing valve |
| Reusable | Generally single-use, not reusable |
| Function | Allows release of carbon dioxide from coffee packaging while preventing oxygen entry |
| Eco Properties | Recyclable, Reusable, Plasticizer-Free |
| Lead Time | 7–15 Days |
| Model Number | A2+ |
| Place of Origin | Guangdong |
| Brand Name | XSJ |
View Detail Information
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Product Specification
| Supply Ability | 6000000 | Body material | Food-grade PE |
| Working temperature | 175-200C° | Opening pressure | 2-9mbar |
| Branding | OEM Logo Embossing | Payment Terms | T/T,L/C,D/A,D/P |
| Membrane material | Food-contact silicone | Capacity | 10,000,000 Pcs / Week |
| Packaging Details | 57*37*42cm | Attachment method | Heat-seal |
| Delivery Time | 5-7 days | Product type | HDPE one way air valve / composite pouch breather valve |
| Product name | Coffee bag one-way degassing valve | Reusable | Generally single-use, not reusable |
| Function | Allows release of carbon dioxide from coffee packaging while preventing oxygen entry | Eco Properties | Recyclable, Reusable, Plasticizer-Free |
| Lead Time | 7–15 Days | Model Number | A2+ |
| Place of Origin | Guangdong | Brand Name | XSJ |
| High Light | Food Grade HDPE air valve ，Coffee bag breather valve ，PE flexible packaging vent | ||
Food-Safe One-Way Degassing Valve With Filter For Coffee Bags – HDPE One Way Air Valve, Composite Pouch Breather Valve OEM
PRODUCT INFORMATIONS
One-way gas release: lets CO₂ out, keeps air and moisture out. Coffee stays fresh
longer.
Food-grade materials: HDPE body with food-contact silicone membrane. Safe for
direct food use.
Steady degassing: precise opening pressure prevents bag swelling and bursting.
Universal fit: works with composite pouches, PE flexible packaging and laminated
bags.
Easy integration: heat-seal or self-adhesive mounting, compatible with standard
bag-making lines.
Full customization: logo, color, size and MOQ tailored to your brand.
Product Overview:
Freshly roasted coffee releases CO₂. Pressure builds inside the sealed pouch.
Without a vent, the bag swells – or bursts. Our one-way valve solves this. It lets
excess gas escape. Then it reseals instantly. Oxygen and moisture stay outside.
Aroma stays inside. Shelf life is extended. This HDPE one way air valve is built for
coffee bags, composite pouches and PE flexible packaging. It is a reliable composite
pouch breather valve for roasters, packers and brand owners.
|
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.
|
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 |
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
How It Work
If you need any of the following, please contact the customer service:
1. Need free samples;
2. Need the service of heat-sealing spout;
3. Produce based on samples, mold customization;
4. Need matching spout bags, complete shipment.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2007
Total Annual:
>5
Employee Number:
>30
Ecer Certification：
Verified Supplier
Dongguan Xinshengji Hardware Products CO.,Ltd Established back in 2007, our factory is a professional integrated plastic packaging supplier with 12 years of industry dedication. We boast a complete industrial system covering independent plastic product development, custo... Dongguan Xinshengji Hardware Products CO.,Ltd Established back in 2007, our factory is a professional integrated plastic packaging supplier with 12 years of industry dedication. We boast a complete industrial system covering independent plastic product development, custo...
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