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600800 All Vented Closures (Caps and Bungs)

600800 All Vented Closures (Caps and Bungs)

We can fit a PTFE vent to any cap or drum bung but this vent is not suitable for every product that requires venting. PTFE is hydrophobic and only suitable for chemicals and products that have only water added, which have a high surface tension.

For products that have a low surface tension e.g. chemicals with fragrance, detergent, alcohol added, a Super Resistant Vent will be required. The type of vent available depends on which closure you are using. Please see the chart below for your options and contact us if you are new to venting or have any questions so we can discuss your needs.

Vented closures MUST be tested by the customer under their specific end use conditions (information on testing WL Gore vents e.g. Press Fit Vents: Testing Gore Packaging Vents (molded components) . Note that testing of other vents may differ so please ask).

For any vented container the following must be noted:

5-10% head-space must be left when filling, to allow the gas to escape out the vent and to minimise risk of leakage from, or plugging of, the vent.

When filling containers up to 30L we recommend doing a ‘tip and test’ whereby you fit the cap, tip the container over briefly and check that no leaks are evident. Then return the container upright.

Containers must be transported and stored upright at all times.

Vents are single use only.

WL Gore vents are for industrial use only – not for use in food, drug, cosmetic or medial device manufacturing, processing or packaging operations. For more information on WL Gore vents: FAQ for Gore Packaging Vents

Please use our Venting Guide and Vented Closure Guide to help decide which vent is suitable for your situation:

Venting Guide: Venting Guide 2015

Vented Closure Guide: Super Resistant Vent Options by Closure Size (this includes a key to the different venting terms that are used)

Customer Order Form for Venting (Please use this when sending your own caps to us for venting): Customer Originated Venting Order Dec15

Policy on venting dirty caps: Policy on Venting Dirty Caps

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