--- title: How do you decrease the noise in industry generated by compressed air? description: Compressed air is often vented through open valves which can be installed with silencers. To decrease compressed air noise silencers should be installed. image: https://blog.spraynozzle.co.nz/hubfs/working-environment-tinnitus-hearing-loss.jpg --- [![Spray Nozzle Engineering Logo](https://blog.spraynozzle.co.nz/hubfs/SprayNozzle_July2019/Images/sne-logo-wihite-width300px.png)](https://spraynozzle.co.nz/) [![Enquire Now! or call 1800NOZZLE](https://hubspot-no-cache-ap1-prod.s3.amazonaws.com/cta/default/5864368/10905853-1917-4b01-91fc-72d008e9ee57.png)](https://hubspot-cta-redirect-ap1-prod.s3.amazonaws.com/cta/redirect/5864368/10905853-1917-4b01-91fc-72d008e9ee57) - [Home](https://spraynozzle.co.nz/) - [Products](https://spraynozzle.co.nz/products/) - [Spray Drying Nozzles](https://spraynozzle.co.nz/product-category/spray-drying-nozzles/) - [Industrial Spray Nozzles](https://spraynozzle.co.nz/product-category/industrial-spray-nozzles-and-accessories/) - [Air Nozzles – Air Knives – Air Guns – Silencers](https://spraynozzle.co.nz/product-category/air-nozzles-air-knives-air-guns-and-silencers/) - 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[Home](https://spraynozzle.com.au/) / How do you decrease the noise in industry generated by compressed air? [![working-environment-tinnitus-hearing-loss](https://blog.spraynozzle.co.nz/hubfs/working-environment-tinnitus-hearing-loss.jpg)](https://blog.spraynozzle.co.nz/how-do-you-decrease-the-noise-in-industry-generated-by-compressed-air) [Previous](https://blog.spraynozzle.co.nz/decrease-the-sound-level-in-the-manufacturing-industry) [Next](https://blog.spraynozzle.co.nz/improve-safety-when-blowing-with-compressed-air) 24/09/2019, 11:27:00 am *A new version of this article was first published on [silvent.com](https://knowledge.silvent.com/us/how-do-you-decrease-the-noise-in-industry-generated-by-compressed-air-)* Compressed air systems and blowing with compressed air can often be the reason for high and sudden [noise levels](https://blog.spraynozzle.co.nz/decrease-the-sound-level-in-the-manufacturing-industry) in industry. The sudden blowing noise occurs when the compressed air expands out from the compressed air system. If compressed air is allowed to expand freely turbulence is created, which in turn generates loud noise. To decrease the noise when blowing with compressed air the turbulence has to be controlled. The occurring blowing noise are of two types. The first occurs when compressed air is used for cleaning, cooling, transporting or sorting in industry. The other type is impulse noise, which occurs when venting valves. The two different applications need different solutions, which controls the turbulence in a way that decreases the noise. Below are tips on how to decrease the noise in both cases of blowing sounds. ## Blowing with compressed air **![Silvent_ProOne_ComparingAirflows.png](https://knowledge.silvent.com/hs-fs/hubfs/Silvent_ProOne_ComparingAirflows.png?width=320&name=Silvent_ProOne_ComparingAirflows.png)** Applications for blowing with compressed air are often consisting of open [pipes](https://blog.spraynozzle.co.nz/when-to-use-an-air-blow-gun-with-an-extension-pipe). To make it easier to control the turbulence that occurs when blowing with compressed air, the open pipes can be replaced with [air nozzles](https://blog.spraynozzle.co.nz/choose-the-correct-air-nozzle). Air nozzles can be used for both stationary and manual blowing application. A stationary [blowing application](https://blog.spraynozzle.co.nz/blowing-applications-are-in-efficient) with an open pipe should, as mentioned above, be replaced with an air nozzle. With regards to a manual blowing application, this should be replaced with an air blow gun that is provided with an air nozzle. Specially designed air nozzles also lowers the noise level by dividing the air through several uniquely designed holes and slots. If the air is blown through smaller holes, instead of one big hole, parts of the sound frequency will rise to levels the human ear cannot hear or get injured by.  ## Venting valves ## ![Unknown-1.jpeg](https://knowledge.silvent.com/hubfs/Unknown-1.jpeg) To decrease the noise when venting valves [silencers](https://blog.spraynozzle.co.nz/decrease-the-sound-level-in-the-manufacturing-industry) should be installed. Compressed air is often ventedthrough open valves, which can be installed with silencers. It is a simple solution that makes a big different on the noise level. Many companies choose not to use this solution since silencers need maintenance. Clogged silencers can cause both expensive down time and operational disturbance. Therefore, it is important to replace all clogged silencers. To make it easier to locate the silencers that need to be replaced, silencers with warning indicators can be used. These silencers clearly show which silencers need to be replaced. With this type of silencer, it is easier to avoid time-consuming and unexpected down time and operational disturbance. [Read more about silencers with warning indicators](https://spraynozzle.co.nz/product-category/air-nozzles-air-knives-air-guns-and-silencers/safety-silencers/). In other words, blowing with [compressed air](https://blog.spraynozzle.co.nz/saving-when-blowing-with-compressed-air) and venting of valves does not have to be a dominating noise generator in industry. With the correct equipment, it is possible to decrease the sound level with up to 10 decibels, which the human ear perceives as a halving of the noise level.   [![Do you want to save 35% of your compressed air usage? Answer our 8 questions and find the correct product!](https://hubspot-no-cache-ap1-prod.s3.amazonaws.com/cta/default/5864368/0c9bb418-b58e-48f4-b45f-47323a4587e3.png)](https://hubspot-cta-redirect-ap1-prod.s3.amazonaws.com/cta/redirect/5864368/0c9bb418-b58e-48f4-b45f-47323a4587e3)   Find out more about blowing with [compressed air nozzles](https://info.spraynozzle.co.nz/facts-about-blowing-with-compressed-air)   [Air Knives - Nozzles](https://blog.spraynozzle.co.nz/tag/air-knives-nozzles) #### Share This Story, Choose Your Platform! 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Here's how.](https://blog.spraynozzle.co.nz/choose-the-correct-air-nozzle) [Gallery](https://blog.spraynozzle.co.nz/hubfs/silvent-innovation-drawing-1.jpg) #### [Choosing an air nozzle? Here's how.](https://blog.spraynozzle.co.nz/choose-the-correct-air-nozzle) ### Subscribe to our blog here! ### Leading Spraying Specialist - [Spray dry nozzles](https://spraynozzle.com.au/product-category/spray-drying-nozzles/) for powder production - [Washdown system](https://spraynozzle.com.au/product-category/washdown-equipment/) - [Clean in place](https://spraynozzle.com.au/product-category/tank-cleaning-rotating-cip-gamajet/) (C.I.P) technology -  [Hose reel](https://spraynozzle.com.au/product-category/hose-reels/) handling systems - [Compressed air knives and safety air nozzles](https://spraynozzle.com.au/product-category/air-nozzles-air-knives-air-guns-and-silencers/) - Agricultural [spray nozzles](https://spraynozzle.com.au/product-category/agricultural-spray-equipment-and-valves/) - [Foaming](https://spraynozzle.com.au/product-category/foaming-and-sanitising/) and sanitising - [Industrial](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/) spray nozzles ### Recent Posts ### Posts by Tag - [Air Knives - Nozzles (21)](https://blog.spraynozzle.co.nz/tag/air-knives-nozzles) - [Industrial Spray Nozzles (11)](https://blog.spraynozzle.co.nz/tag/industrial-spray-nozzles) - [Tank Cleaning - Rotating CIP (4)](https://blog.spraynozzle.co.nz/tag/tank-cleaning-rotating-cip) - [Washdown Equipment (4)](https://blog.spraynozzle.co.nz/tag/washdown-equipment) - [Foaming - Sanitising (2)](https://blog.spraynozzle.co.nz/tag/foaming-sanitising) - [silvent (2)](https://blog.spraynozzle.co.nz/tag/silvent) - [Spray Chilling Nozzles (1)](https://blog.spraynozzle.co.nz/tag/spray-chilling-nozzles) - [compressed air (1)](https://blog.spraynozzle.co.nz/tag/compressed-air) See all #### Australia – Melbourne 1-8 27 Shearson Crescent, Mentone 3194 Phone: [+61 (3) 9583 2368](tel:+61395832368) Mobile: [1800 NOZZLE](tel:1800669953) Email: [sales@spraynozzle.com.au](mailto:sales@spraynozzle.com.au) #### Australia – Sydney Phone: [+61 (02) 9533 4690](tel:+610295334690) Mobile: [1800 NOZZLE](tel:1800669953) Email: [sales@spraynozzle.com.au](mailto:sales@spraynozzle.com.au) #### New Zealand – Pacific Rim 532 C Grey Street, Hamilton East, 3216 Phone: [+64 (7) 839 6444](tel:+6478396444) Mobile: [0800 NOZZLE](tel:0800669953) Email: [sales@spraynozzle.co.nz](mailto:sales@spraynozzle.co.nz) ©2018 Spray Nozzle Engineering | All Rights Reserved | [T&C](https://spraynozzle.co.nz/terms-and-conditions/) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Spray Nozzle Engineering Editor", "url" : "https://blog.spraynozzle.co.nz/author/spray-nozzle-engineering-editor" }, "dateModified" : "2020-02-26T01:44:18.445Z", "datePublished" : "2019-09-24T01:27:00.000Z", "headline" : "How do you decrease the noise in industry generated by compressed air?", "image" : [ "https://blog.spraynozzle.co.nz/hubfs/working-environment-tinnitus-hearing-loss.jpg" ], "mainEntityOfPage" : { "@id" : "https://blog.spraynozzle.co.nz/how-do-you-decrease-the-noise-in-industry-generated-by-compressed-air", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.spraynozzle.co.nz/hubfs/sne-logoDarkBlue-1.png" }, "name" : "Spray Nozzle Engineering / Reel Tech" } } ```