--- title: Clog Resitant Nozzles for a Waste Water Plant description: Discover how NF nozzles enhance wastewater treatment by preventing clogs, improving efficiency, and reducing maintenance in various industrial applications image: https://blog.spraynozzle.com.au/hubfs/Clog%20Resitant%20Nozzles%20for%20a%20Waste%20Water%20Plant.webp --- [![Spray Nozzle Engineering Logo](https://blog.spraynozzle.com.au/hubfs/SprayNozzle_July2019/Images/sne-logo-wihite-width300px.png)](https://spraynozzle.com.au/) [![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.com.au/) - [Products](https://spraynozzle.com.au/products/) - [Spray Drying Nozzles](https://spraynozzle.com.au/product-category/spray-drying-nozzles/) - [Industrial Spray Nozzles](https://spraynozzle.com.au/product-category/industrial-spray-nozzles-and-accessories/) - 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Left undisturbed, this scum can crust over, reducing oxygen transfer and creating “dead” zones that hamper microbial activity. At BDR Stainless required a solution for a sewage‐treatment plant, conventional spray nozzles—often featuring small orifice openings and removable cores—proved vulnerable to clogging whenever recycled process water carried fine solids. Each blockage interrupted surface agitation, allowing the scum layer to re‑form and undermining treatment efficiency. ![1-2](https://5864368.fs1.hubspotusercontent-na1.net/hub/5864368/hubfs/1-2.png?width=1200&length=1200&name=1-2.png) **1** The site was using ineffective nozzles that frequently clogged, by using NF nozzles the problem was resolved ## **How NF Nozzles Work** **![NF-1](https://blog.spraynozzle.com.au/hs-fs/hubfs/1.%20SNE/BETE/NF-1.png?width=200&height=200&name=NF-1.png)**NF nozzles use a single‑piece design with a comparatively large orifice and no internal core. Instead of forcing the water through a tiny, precision‑machined opening, they allow suspended particles to pass freely while still producing a well‑defined flat‑fan spray. This combination of clog resistance and consistent spray geometry makes them ideally suited to applications where fluid streams carry particulate matter.   1. **Large Orifice, No Core** - The wide opening minimizes the chance that solids will lodge and block the nozzle. - With no removable core, there are no small parts to lose or clean, simplifying both installation and maintenance. 2. **Flat‑Fan Spray Pattern** - Generates an even, thin sheet of liquid that covers the surface thoroughly. 3. **Material and Angle Options** - Available in brass, stainless steel, polypropylene, PVDF or exotic alloys to withstand chemical exposure and corrosion. - A range of fan angles (typically 15° to 80°) lets you tailor coverage to your vessel’s geometry and flow requirements. ## **Why NF Nozzles Excel in Scum‑Control** - **Uninterrupted surface agitation**: By resisting clogs, NF nozzles keep the scum layer in motion at all times, avoiding the periods of stagnation seen with small‑orifice designs. - **Reduced maintenance needs**: After installation, operators noted that cleaning cycles dropped dramatically. Rather than daily nozzle inspections, team members could focus on other process tasks. - **Consistent oxygen transfer**: Maintaining a moving, non‑crusting surface maximizes air‐liquid contact, which is critical for aerobic digestion. ## **Breadth of Applications:** Although controlling surface scum in bioreactors is a visible benefit of using NF nozzles, their clog‑resistant design serves a range of industrial and environmental processes: - **Industrial cleaning and rinse systems** Fluids used for washdown and rinsing often contain soil, debris or particulates. NF nozzles deliver a uniform spray that clears surfaces without interruption or frequent cleaning. - **Chemical dosing in recycled streams** In processes where chemicals (e.g., coagulants, disinfectants or pH‑adjusters) are injected into recycled water, suspended solids can clog dosing nozzles. NF designs ensure steady dispersal of additives, maintaining treatment consistency. - **Cooling tower distribution** Cooling‐tower fill and distribution systems rely on even water coverage. Particulate‐laden water can block small nozzles, causing dry spots that reduce heat‐exchange efficiency. Larger orifice nozzles help maintain uniform wetting. - **Dust suppression and mist systems** Applications such as dust suppression in mining or material handling use water sprays to capture airborne particles. NF nozzles, with their wide orifice, stay clear even when water contains fine dust or sediment. ## **Key Considerations for Specifying Flat Fan Nozzles** - **Flow rate and pressure**: Determine the operating pressure and required flow per nozzle to size the orifice appropriately. - **Fan angle selection**: Choose a fan angle that will cover the target surface without excessive overlap or gaps. - **Material compatibility**: Match nozzle body material to the chemistry and temperature of your process fluid. - **Mounting and alignment**: Proper nozzle orientation and spacing are essential for achieving an even spray. By combining a simple, core‑free design with large orifices and a reliable flat‑fan pattern, NF nozzles offer a practical solution wherever fine particles threaten to block traditional spray devices. Whether you’re keeping bioreactor scum in motion, dosing chemicals into recycled water, or ensuring uniform coverage in cooling towers, these nozzles help maintain consistent operation with fewer interruptions and lower maintenance demands. #### Share This Story, Choose Your Platform! 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### 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 - [Industrial Spray Nozzles (31)](https://blog.spraynozzle.com.au/tag/industrial-spray-nozzles) - [Air Knives - Nozzles (23)](https://blog.spraynozzle.com.au/tag/air-knives-nozzles) - [Tank Cleaning - Rotating CIP (17)](https://blog.spraynozzle.com.au/tag/tank-cleaning-rotating-cip) - [Spray Nozzle (11)](https://blog.spraynozzle.com.au/tag/spray-nozzle) - [Washdown Equipment (5)](https://blog.spraynozzle.com.au/tag/washdown-equipment) - [Foaming - Sanitising (4)](https://blog.spraynozzle.com.au/tag/foaming-sanitising) - [Agricultural Spray Equipment (3)](https://blog.spraynozzle.com.au/tag/agricultural-spray-equipment) - [dust suppression (3)](https://blog.spraynozzle.com.au/tag/dust-suppression) - [Custom Spray Lances - Bars (2)](https://blog.spraynozzle.com.au/tag/custom-spray-lances-bars) - [gas scrubbing for pollution control (2)](https://blog.spraynozzle.com.au/tag/gas-scrubbing-for-pollution-control) - [gas scrubbing nozzles (2)](https://blog.spraynozzle.com.au/tag/gas-scrubbing-nozzles) - [silvent (2)](https://blog.spraynozzle.com.au/tag/silvent) - [Food Processing Cleaning & sanitising (1)](https://blog.spraynozzle.com.au/tag/food-processing-cleaning-sanitising) - [Water Monitors - Cannons (1)](https://blog.spraynozzle.com.au/tag/water-monitors-cannons) - [beete full cone nozzles (1)](https://blog.spraynozzle.com.au/tag/beete-full-cone-nozzles) - [conveyor dust suppression (1)](https://blog.spraynozzle.com.au/tag/conveyor-dust-suppression) - [dust suppression tunnel boring (1)](https://blog.spraynozzle.com.au/tag/dust-suppression-tunnel-boring) - [mining conveyor dust suppression (1)](https://blog.spraynozzle.com.au/tag/mining-conveyor-dust-suppression) 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.com.au/author/spray-nozzle-engineering-editor" }, "dateModified" : "2025-06-10T22:45:01.461Z", "datePublished" : "2025-06-10T22:45:01.000Z", "headline" : "Clog Resitant Nozzles for a Waste Water Plant", "image" : [ "https://blog.spraynozzle.com.au/hubfs/Clog%20Resitant%20Nozzles%20for%20a%20Waste%20Water%20Plant.webp" ], "mainEntityOfPage" : { "@id" : "https://blog.spraynozzle.com.au/clog-resitant-nozzles-for-a-waste-water-plant", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.spraynozzle.com.au/hubfs/sne-logoDarkBlue-1.png" }, "name" : "Spray Nozzle Engineering / Reel Tech" } } ```