--- title: Which is better? A flat or convoluted diaphragm? description: The most important component of the diaphragm pump is the actual diaphragm. The diaphragm can be flat or convoluted. What are the key differences? image: https://dynaflopumps.com/hubfs/blog%20posts/Flat%20vs%20Convolute%20Diaphragm%20Pump-1.png --- [Skip to content](https://dynaflopumps.com/blog/flat-vs-convolute-diaphragm#main-content) [![Dynaflo Pumps Logo](https://dynaflopumps.com/hs-fs/hubfs/Dynaflo%20Pumps%20Logo.png?width=100&height=100&name=Dynaflo%20Pumps%20Logo.png "Dynaflo Pumps Logo")](https://dynaflopumps.com) - Diaphragm Pumps - [1000 Series Diaphragm Pump](https://dynaflopumps.com/diaphragm-pump/1000-series) - [2000 Series Micro Diaphragm Pump](https://dynaflopumps.com/diaphragm-pump/2000-series-micro-pump) - [3000 Series Smooth Flow Pump](https://dynaflopumps.com/diaphragm-pump/3000-series-smooth-flow) - [4000 Series Micro Diaphragm Pump](https://dynaflopumps.com/new-4000-series-micro-diaphragm-pump-dynaflos-smallest-pump) - [6000 Series Mini Diaphragm Pump](https://dynaflopumps.com/diaphragm-pump/6000-series-mini-pump) - Applications - [Drug Infusion Systems](https://dynaflopumps.com/solutions/iv-infusion-diaphragm-pumps) - [Mechanical Ventilators](https://dynaflopumps.com/solutions/mechanical-ventilator-diaphragm-pumps) - [Prosthetics](https://dynaflopumps.com/solutions/prosthetics-diaphragm-pump) - [Suction Machines](https://dynaflopumps.com/solutions/medical-suction-machine-pump) - [Vacuum Lifters](https://dynaflopumps.com/solutions/best-vacuum-lifter-diaphragm-pumps) - Resources - Case Studies - [Tisch Environmental Air Samplers](https://dynaflopumps.com/blog/case-studies/tei-air-samplers) - [The Vacuum Lifting Company](https://dynaflopumps.com/blog/how-the-vacuum-lifting-company-built-safer-vacuum-lifters) - [Suction-Based Prosthetics](https://dynaflopumps.com/blog/case-studies/prosthetics-mini-diaphragm-pump) - [Ivenix Drug Infusion Systems](https://dynaflopumps.com/blog/drug-infusion/ivenix-mini-diaphragm-pump) - [Autem Vacuum Lifters](https://dynaflopumps.com/blog/case-studies/autem-diaphragm-pump) - [Blog](https://dynaflopumps.com/blog) - [About](https://dynaflopumps.com/about-dynaflo) - [Pump Selector](https://dynaflopumps.com/pump-selector) - [Contact](https://dynaflopumps.com/create-your-competitive-edge-dynaflo-inc) # Which is better? A flat or convoluted diaphragm? November 15, 2022 Tags: [Diaphragm Pump Considerations](https://dynaflopumps.com/blog/tag/diaphragm-pump-considerations) [Diaphragm Pump Tips](https://dynaflopumps.com/blog/tag/diaphragm-pump-tips) There are evident differences between a flat and convoluted diaphragm, and there are different scenarios where one diaphragm might be better than another for your diaphragm pump.   Let's dig into the differences between flat and convoluted diaphragms to help you choose which would be best for your product.  ## Flat Diaphragms Pros: A flat diaphragm is good because you can get high compression ratios and slightly higher pressures in vacuums than a convoluted diaphragm. Cons: A flat diaphragm may have a slightly shorter life because it's being stretched back and forth. (The power consumption for a flat diaphragm is around 3 W). ## Convolute Diaphragms Pros: A convolute diaphragm is good for applications where you want low power consumption because the rubber doesn't stretch—it rolls. The power consumption for a convoluted diaphragm is less than 1 W. So, for battery-powered applications, a convoluted diaphragm is better for power efficiency than a flat diaphragm. Neither Pro nor Con:  Serviceability is the same with a flat and convoluted diaphragm. ## Which diaphragm is right for you?  Choose a flat diaphragm when you want slightly higher pressure and aren't too concerned about how long it will last.   Choose a convoluted diaphragm if you want long life and low power consumption. ## Have any questions? Drop them in the comments below.  Spread the word: [Share this blog post on Twitter](https://twitter.com/intent/tweet?text=I+found+this+interesting+blog+post&url=https://dynaflopumps.com/blog/flat-vs-convolute-diaphragm) [Share this blog post on Facebook](http://www.facebook.com/share.php?u=https://dynaflopumps.com/blog/flat-vs-convolute-diaphragm) [Share this blog post on LinkedIn](http://www.linkedin.com/shareArticle?mini=true&url=https://dynaflopumps.com/blog/flat-vs-convolute-diaphragm) ### Leave a comment: ## Related Articles #### Applications - [Drug Infusion Systems](https://dynaflopumps.com/solutions/iv-infusion-diaphragm-pumps) - [Mechanical Ventilators](https://dynaflopumps.com/solutions/mechanical-ventilator-diaphragm-pumps) - [Prosthetics](https://dynaflopumps.com/solutions/prosthetics-diaphragm-pump) - [Suction Machines](https://dynaflopumps.com/solutions/medical-suction-machine-pump) - [Vacuum Lifters](https://dynaflopumps.com/solutions/best-vacuum-lifter-diaphragm-pumps) #### Resources - [Micro Pump Blog](https://dynaflopumps.com/blog) - [Case Studies](https://dynaflopumps.com/blog/tag/case-study) - [ISO 9001:2015 Certificate](https://dynaflopumps.com/hubfs/PDFs/ISO9001%20Cert.pdf) #### Contact Dynaflo, Inc [10 Vanguard Dr, Suite 20 Reading, PA 19606](https://goo.gl/maps/nsqg54ChQtsmKWo18) [(610) 200-8017](tel:+16102008017) ©Copyright 2022 Dynaflo, Inc. All rights reserved - [Privacy](https://dynaflopumps.com/privacy-policy) - [Cookie Policy](https://dynaflopumps.com/cookie-policy) - [U.S.A. Terms](https://dynaflopumps.com/hubfs/PDFs/US_Standard%20Terms%20and%20Conditions_Nov2014%20(1).pdf) - [International Terms](https://dynaflopumps.com/hubfs/PDFs/International_Standard%20Terms%20and%20Conditions_May2015.pdf) - [Contact](https://dynaflopumps.com/create-your-competitive-edge-dynaflo-inc) ![](https://px.ads.linkedin.com/collect/?pid=4171268&fmt=gif) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Dynaflo, Inc", "url" : "https://dynaflopumps.com/blog/author/dynaflo-inc" }, "dateModified" : "2024-02-14T23:41:32.596Z", "datePublished" : "2022-11-15T22:07:06.000Z", "headline" : "Which is better? A flat or convoluted diaphragm?", "image" : [ "https://dynaflopumps.com/hubfs/blog%20posts/Flat%20vs%20Convolute%20Diaphragm%20Pump-1.png" ], "mainEntityOfPage" : { "@id" : "https://dynaflopumps.com/blog/flat-vs-convolute-diaphragm", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://dynaflopumps.com/hubfs/Dynaflo%20Pumps%20Logo.png" }, "name" : "Dynaflo, Inc." } } ```