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21.7mm Coffee Bag One Way Valve for Roasted Beans | HL-TB
The HL-TB is a 21.7mm coffee bag one way valve without a filter, developed for laminated flexible packaging containing roasted coffee beans and other granulated products. Its one-way structure allows gas to leave sealed pouches while helping limit reverse airflow during storage and distribution.
- Diameter: 21.7mm inner diameter for coffee pouches and flexible packaging bags
- Structure: Filter-free polyethylene (PE) valve for coffee beans and granulated products
- Function: One-way gas release for roasted coffee packaging and other gas-releasing contents
- Compatibility: Suitable for stand-up pouches and eight-side sealed bags
- Capacity: Recommended for packaging projects from 5g to 5kg
- Color & MOQ: White standard color with a MOQ of 200,000 sets
21.7mm Coffee Bag One Way Valve for Roasted Bean Packaging Projects
HL-TB is a filter-free coffee bag one way valve for laminated pouches containing roasted coffee beans and other granulated products. Its 21.7mm inner diameter and 3.8mm height provide a defined valve profile for packaging buyers who need a one-way degassing component for stand-up bags and eight-side sealed pouches.
After roasting, coffee beans continue releasing carbon dioxide inside sealed packaging. The HL-TB valve allows built-up gas to move outward while helping restrict the reverse movement of outside air into the pouch. This supports more stable bag handling during filling, storage, transport, and retail display.
Why a Coffee Bag One Way Valve Matters After Roasting
A sealed coffee pouch must manage the gas released by freshly roasted beans. Without a suitable outlet, internal pressure can cause bag swelling, deformation, or stress on the pouch seals. A coffee bag one way valve provides a controlled outlet for gas without creating an open path into the package.
With Valve vs. Without Valve
This comparison helps buyers understand the practical role of a coffee bag one way valve in roasted coffee packaging. Actual package performance also depends on pouch material, sealing quality, filling conditions, and storage environment.
| Aspect | Coffee Bag with One-Way Valve | Coffee Bag without Degassing Valve |
|---|---|---|
| Gas management after roasting | Allows carbon dioxide to leave through a controlled one-way path | Gas remains inside the sealed pouch and may increase internal pressure |
| Pouch appearance | Helps reduce visible swelling caused by gas build-up | The pouch may expand or deform when gas accumulates |
| Outside air entry | One-way structure helps limit reverse airflow through the valve path | Protection depends entirely on the pouch material and seal condition |
| Packaging suitability | Suitable for roasted coffee beans and selected gas-releasing products | May be less suitable where ongoing gas release creates packaging pressure |
HL-TB uses a filter-free structure and is primarily intended for whole coffee beans and other granular materials. Buyers packing finely ground coffee or powder-containing products should confirm whether a filtered valve configuration is more appropriate for the selected filling material.
- Allows carbon dioxide released by roasted coffee beans to leave the pouch
- Helps reduce internal pressure and visible pouch swelling
- Helps limit outside air and moisture from entering through the valve path
- Supports stable handling of sealed coffee bags during logistics
- Provides a 21.7mm valve specification for defined pouch-panel layouts
How the HL-TB Degassing Valve Operates
The HL-TB coffee bag one way valve is integrated into a laminated flexible pouch. When gas generated by the packaged product creates sufficient pressure inside the bag, the valve provides an outward path for that gas to escape.
After the internal pressure is reduced, the one-way structure helps limit reverse airflow. The valve works as one component of the overall packaging system, so final package performance also depends on the pouch material, sealing quality, valve placement, and filling conditions.
Product Specifications
| Item number | HL-TB |
| Product type | Filter-free coffee bag one way valve |
| Inner diameter | 21.7mm |
| Height | 3.8mm |
| Material | Polyethylene (PE) |
| Filter configuration | Without filter |
| Standard color | White |
| Recommended package capacity | 5g to 5kg |
| Compatible packaging | Stand-up pouches and eight-side sealed bags |
| MOQ | 200,000 sets |
| Packing | Poly bag inner packing, carton outer packing, pallets |
What to Confirm Before Selecting HL-TB
The right valve model depends on more than its diameter. Buyers should review the pouch style, filling material, bag capacity, available installation area, and packaging process before selecting the HL-TB coffee bag one way valve.
- Confirm that the product is whole coffee beans, feed, pet food, or another granulated material
- Confirm whether a filter-free valve is suitable for the filling material
- Check the available pouch panel area for a 21.7mm valve format
- Provide the pouch material structure and sealing method for project review
- Confirm the expected fill weight and purchase quantity before quotation
OEM and ODM Options
Hanle Packing can review OEM and ODM requirements for coffee bag one way valve projects based on the pouch structure, filling material, order quantity, and technical specification. Standard HL-TB is supplied as a white, filter-free PE valve with a 21.7mm inner diameter, while project-specific requirements can be evaluated before production planning.
- Size Review: Valve dimensions can be reviewed against the target pouch structure and available panel area
- Color Options: Color requirements can be evaluated according to project specifications and order quantity
- Filter Design: Filter-free or filtered valve requirements can be reviewed according to the filling material
- Sample Evaluation: Sample arrangements can be discussed for pouch matching and application assessment before volume procurement
- Bulk Packing: Inner poly bag, outer carton, pallet, and project-specific packing requirements can be confirmed before shipment
Choosing Between HL-TB and HL-TC Coffee Valves
HL-TB and HL-TC are both filter-free one-way degassing valves for roasted coffee beans and other granulated products. Their dimensions are similar, but their inner diameter, height, and recommended package-capacity range differ. Buyers should select the model that best fits the actual pouch structure and product packaging requirement.
| Model | Inner Diameter | Height | Filter | Recommended Package Capacity |
|---|---|---|---|---|
| HL-TB | 21.7mm | 3.8mm | Without filter | 5g–5kg |
| HL-TC | 22.4mm | 3.6mm | Without filter | 500g–2kg |
HL-TB may be considered when a project requires a 21.7mm valve format and compatibility with packages from 5g to 5kg. For coffee bag projects that require a 22.4mm valve profile for 500g to 2kg packaging, review the HL-TC coffee degassing valve. Final selection should be confirmed against the pouch design, valve placement area, filling material, and packaging conditions.
Standard Configuration and Project Requirements
HL-TB is supplied as a standard white PE coffee bag one way valve with a 21.7mm inner diameter and a filter-free structure. This configuration is intended for buyers who need a defined valve specification for coffee pouches and other flexible packages containing granulated products.
For projects involving different dimensions, colors, filter requirements, packaging configurations, or application conditions, Hanle Packing can review the technical requirement before quotation. Feasibility should be confirmed according to the selected pouch material, product being filled, required quantity, and requested specifications.
Applications for Coffee and Granulated Product Packaging
HL-TB is primarily used in roasted coffee bean packaging where controlled gas release is required after filling. Its one-way design can also be assessed for other flexible packaging applications involving granulated contents that may release gas during storage.
- Roasted coffee bean pouches for retail, wholesale, and foodservice supply
- Stand-up coffee bags with zipper closures
- Eight-side sealed coffee bags and flexible packaging pouches
- Fermented feed and selected animal nutrition packaging projects
- Cat food, dog food, cattle feed, horse feed, poultry feed, fish feed, and shrimp feed packaging, subject to compatibility review
Typical Procurement Scenario
A coffee packaging buyer is developing a series of stand-up pouches and eight-side sealed bags for roasted coffee beans. The buyer needs a consistent valve specification that can be evaluated across several bag sizes while maintaining a filter-free structure for whole-bean filling.
Buyer Requirement: The buyer requires a one-way coffee valve with a defined 21.7mm format, white standard color, bulk packing for volume purchasing, and suitability for laminated flexible pouches used for roasted coffee beans.
Solution: Hanle Packing reviews the pouch format, valve placement area, fill weight, laminated material structure, and order quantity before recommending the HL-TB standard configuration. The valve is supplied as a white PE model without a filter and packed in inner poly bags, outer cartons, and pallets.
Result: The buyer receives a defined valve specification for compatibility testing with the selected pouch structures and filling process. Final procurement can proceed after confirming application suitability, sample requirements where applicable, and the agreed production schedule.
Frequently Asked Questions
Is HL-TB suitable for roasted coffee beans?
Yes. HL-TB is designed for roasted coffee beans and other granulated products that require controlled gas release after packaging. Final suitability should still be confirmed according to the pouch structure and filling process.
Does HL-TB include a filter?
No. HL-TB is a filter-free coffee bag one way valve. Buyers packaging ground coffee or powder-containing products should confirm whether a filtered valve design is more suitable for their application.
What types of packaging can use HL-TB?
HL-TB is suitable for laminated flexible packaging, including stand-up pouches and eight-side sealed bags. The actual installation and performance should be evaluated according to the pouch material, valve placement area, and sealing method.
What is the MOQ for HL-TB?
The standard MOQ is 200,000 sets. Please provide the expected quantity and product application for project-specific quotation review.
What information is needed for an HL-TB quotation?
Please provide the filling material, pouch type, package capacity, expected order quantity, pouch material structure, and any required valve color, size, filter configuration, or packing details. This information helps confirm whether HL-TB is appropriate for the project.
About Hanle Packing
Shantou Hanle Packing Co., Ltd. develops and supplies plastic components for flexible packaging applications. Hanle Packing supports packaging projects through mold development, manufacturing, sales, and after-sales service, with OEM and ODM requirements reviewed according to product structure and application. With 20 years of experience in spout cap mold development, manufacturing, and international trade, Hanle Packing helps buyers assess packaging-component specifications before volume procurement.
Request Product Information and a Quotation
For an HL-TB quotation, please provide the filling product, pouch type, target package capacity, pouch material structure, and expected order quantity. Include any requirements for valve size, color, filter configuration, packing method, or project-specific application details for a more accurate review. Sample availability, production timing, and relevant product documentation can be confirmed during the quotation process. For direct project communication, email sales@pouchspoutcap.com or call +86-15914764791.
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