--- title: The Importance of Plugging the Vents During a  Purge Sequence description: Asaclean Purging Expert Eric Despotovich explains how important it is to plug your vents while using purging compounds. image: https://www.asaclean.com/hubfs/AI-Generated%20Media/Images/This%20image%20depicts%20a%20drain%20in%20a%20white%20bath%20tub-1.jpeg --- [ Order Online ](https://asaclean.my.site.com/b2bstore) [ Free Sample ](https://offers.asaclean.com/free-sample) ## [ Asaclean Blog ](https://www.asaclean.com/blog) Browse by Topic " aerospace asaclean asaclean news Asaclean® benefits asahi kasei automotive Best Practices black specks blisters blow molding blown-film extrusion buyers caps and closures carbon contamination cast-film extrusion Chemical Purging Compounds clear applications Color Changeovers Company News compounding consumer products contamination Cost savings custom molders Customer Success Story decreasing scrap defects electronics Energy Efficiency EX Grade extruder cleaning Extrusion fillament glass filled Glitter Grade Selection HDPE High and Low Temp Changeovers hold a bubble Hot Runners Injection Molding Injection Molding Tips LDPE Lightweight automotive components LLDPE low residue maintenance Material Changeovers Mechanical Purging Compounds medical Melt Flow Index NPE 24 nylons on the fly packaging PCR PEEK Polypropylene Post Consumer Resins preventative preventative purging processing tips profile extrusion Purge Program purge programs Purge Training Purge Trial purging purging compounds purging concentrates purging procedures Purging Tips quality recycled resins residue issues scrap reduction Screw Pulls sheet extrusion shutdown and sealing start-up super engineering resins Sustainability Tech Day technical support training trials Troubleshooting Twin Screw twin screw extrusion two step purging U Grade ULTEM venting Viscosity webinars wire extrusion - 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[LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fthe-importance-of-plugging-the-vents-during-a-purge-sequence&title=The%20Importance%20of%20Plugging%20the%20Vents%20During%20a%20Purge%20Sequence&summary=Asaclean+Purging+Expert+Eric+Despotovich+explains+how+important+it+is+to+plug+your+vents+while+using+purging+compounds.&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fthe-importance-of-plugging-the-vents-during-a-purge-sequence) - [Email Email ](mailto:?subject=The%20Importance%20of%20Plugging%20the%20Vents%20During%20a%20Purge%20Sequence&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fthe-importance-of-plugging-the-vents-during-a-purge-sequence) ![The Importance of Plugging the Vents During a Purge Sequence](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/This%20image%20depicts%20a%20drain%20in%20a%20white%20bath%20tub-1.jpeg?width=640&height=500&name=This%20image%20depicts%20a%20drain%20in%20a%20white%20bath%20tub-1.jpeg) ![This is another type of plug. ](https://www.asaclean.com/hs-fs/hubfs/bath-1937412_1920.jpg?width=350&name=bath-1937412_1920.jpg) While working with many compounders in North America, it has come to my attention that the vents on an extruder is an after thought while purging. What is a vent on an extruder barrel? These vents are holes in the barrel that allow gases to escape and not build up pressure during production. When one is ready to clean this type of an extruder with purge compounds, most people do not even think about the vent or cannot find the plug that came with the machine. Therefore, when the purge they are using does not work as advertised, they are disappointed with the failure and typically stop using them.  The answer is simple--plug the vents during your purge sequence. This advice applied whether you are using  [mechanical purge compounds ](https://www.asaclean.com/purging-products/mechanical-purging-compound/)(these work well with pressure, shear and speed) or [chemical purge compounds ](https://www.asaclean.com/purging-products/asaclean-chemical-purging-grades/)(which work by heat and containment of the gases). As you can see, if the vents are not plugged, you lose the pressure that helps clean the screw and barrel during the purge sequence. **Learn about the importance of implementing proper purging procedures by downloading this free industry guide.** **** ** [![](https://no-cache.hubspot.com/cta/default/468726/interactive-161630774182.png) ](https://www.asaclean.com/hs/cta/wi/redirect?encryptedPayload=AVxigLJ5Pm%2FHSk61FSJUG6nqCJMBds1X5pUtMOGMEvDupa7HLOQAeXfD9a0SZ9AMePNeDNRCszWH4JDts3LVzK6rBdQT08%2BDOfAcovWCmCBMMDUgXa1Wox%2FdbSmcinwhh4kQdZd0ynEIUdE7ipYU%2FV8OIinmbbdAV1%2FWDluulB3%2FBJ4%2B2fL1GnuhSr7gdDx7Z7IbsCDCR8pIy9FTXQVmCOOU9Q9pHAhRAxErOrncMhlqeD7Hvym7hnUuWXxY&webInteractiveContentId=161630774182&portalId=468726) ** ** ** ![Eric Despotovich](https://www.asaclean.com/hs-fs/hubfs/Eric%20Despotovich%20LinkedIn%20Headshot%202%20-%20Copy.jpg?width=150&name=Eric%20Despotovich%20LinkedIn%20Headshot%202%20-%20Copy.jpg) #### [ Eric Despotovich ](https://www.asaclean.com/blog/author/eric-despotovich) Eric Despotovich, an esteemed Asaclean Purging Expert and Technical Sales Representative, brings over 40 years of processing experience to his role. With over 18 years of dedication to our company, Eric has become a cornerstone of our sales team, renowned for his commitment to client success. His extensive industry knowledge and genuine passion for helping clients make him a trusted advisor in optimizing their operations. Eric's approach is characterized by deeply understanding each client's unique challenges, ensuring tailored solutions that drive efficiency and profitability. - [Share On LinkedIn ](https://www.linkedin.com/in/eric-despotovich-5449682b) ## Related Posts [![](https://www.asaclean.com/hs-fs/hubfs/Venting.jpg?width=450&height=250&name=Venting.jpg) Compounders: Plug Your Vents for Better Purging Power Troubleshooting / 2 min read / November 10, 2020 ](https://www.asaclean.com/blog/compounders-plug-your-vents-for-better-purging-power) [![3 Tips to Guarantee a Clean Machine at Start-Up](https://www.asaclean.com/hs-fs/hubfs/AI-Generated%20Media/Images/The%20image%20shows%20a%20white%20sign%20that%20says%20DOWNTIME%20in%20red%20block%20letters-3.jpeg?width=450&height=250&name=The%20image%20shows%20a%20white%20sign%20that%20says%20DOWNTIME%20in%20red%20block%20letters-3.jpeg) 3 Tips to Guarantee a Clean Machine at Start-Up Troubleshooting / 2 min read / August 12, 2020 ](https://www.asaclean.com/blog/3-tips-to-guarantee-a-clean-machine-at-start-up) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/the-importance-of-plugging-the-vents-during-a-purge-sequence#) - [Contact Sales](https://www.asaclean.com/blog/the-importance-of-plugging-the-vents-during-a-purge-sequence#) ![](https://www.asaclean.com/hubfs/assets/images/icons/icon-layers.svg) #### Free Sample Request a free sample of Asaclean® Purging Compounds for your plant and start saving today. [Request your free sample](https://offers.asaclean.com/en/free-sample?hsLang=en) ![](https://www.asaclean.com/hubfs/assets/images/icons/icon-calculator.svg) #### Cost Savings Calculator Use our free calculator to see how much you could be saving with Asaclean® Purging Compounds. [See your savings](https://www.asaclean.com/cost-savings-calculator) [ Back to Top ](https://www.asaclean.com/blog/the-importance-of-plugging-the-vents-during-a-purge-sequence#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Eric Despotovich", "url" : "https://www.asaclean.com/blog/author/eric-despotovich" }, "dateModified" : "2025-07-07T18:37:18.301Z", "datePublished" : "2019-03-01T21:59:24.000Z", "headline" : "The Importance of Plugging the Vents During a  Purge Sequence", "image" : [ "https://www.asaclean.com/hubfs/AI-Generated%20Media/Images/This%20image%20depicts%20a%20drain%20in%20a%20white%20bath%20tub-1.jpeg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/the-importance-of-plugging-the-vents-during-a-purge-sequence", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.asaclean.com/hubfs/Asaclean%20Logo%20TM.jpg" }, "name" : "Asahi Kasei Plastics North America" } } ``` ```json { "@context" : "http://schema.org", "@type" : "Article", "articleBody" : "While working with many compounders in North America, it has come to my attention that the vents on an extruder is an after thought while purging. What is a vent on an extruder barrel? These vents are holes in the barrel that allow gases to escape and not build up pressure during production. When one is ready to clean this type of an extruder with purge compounds, most people do not even think about the vent or cannot find the plug that came with the machine. Therefore, when the purge they are using does not work as advertised, they are disappointed with the failure and typically stop using them. The answer is simple--plug the vents during your purge sequence.", "author" : { "@type" : "Person", "name" : "Eric Despotovich" }, "datePublished" : "March 01, 2019", "headline" : "The Importance of Plugging the Vents During a Purge Sequence", "image" : "https://468726.fs1.hubspotusercontent-na1.net/hubfs/468726/AI-Generated%20Media/Images/This%20image%20depicts%20a%20drain%20in%20a%20white%20bath%20tub-1.jpeg", "name" : "The Importance of Plugging the Vents During a Purge Sequence", "url" : "https://www.asaclean.com/blog/the-importance-of-plugging-the-vents-during-a-purge-sequence" } ```