RELAB SPRAY TECH

RELAB SPRAY TECHhttps://www.relabspray.comRELAB Spray Tech | Applicatons, Industries.enMon, 20 Apr 2026 21:42:19 +0800Misting System and Fogging Systemhttps://www.relabspray.com/en/technology/flow-rate-and-spray-angle/misting-system-and-fogging-system/https://www.relabspray.com/en/technology/flow-rate-and-spray-angle/misting-system-and-fogging-system/186Misting System and Fogging SystemRELAB<![CDATA[Misting System, Fogging System, Cooling System, Humidification System, Climate System]]><![CDATA[RELAB generally considers the operating pressure of a misting system to be 4-7 MPa, while that of a fogging system is above 7 MPa.]]>https://www.relabspray.com/files/image/misting-system-and-fogging-system-6840.jpg<![CDATA[<p>Misting systems and fogging systems are both types of high-pressure atomization systems. Internationally, there is no standardized classification of misting and fogging systems based on pressure levels. The core differences between the two lie primarily in droplet size, application objectives, and technical implementation methods, rather than simply in pressure values. Although high pressure is often used to achieve finer atomization, the terms "misting" and "fogging" are determined more by the final atomization state and the application scenario.</p> <p>Based on the rated pressures of some mainstream misting systems worldwide, as well as the rated pressures of their pipes, fittings, and nozzles, RELAB generally considers the operating pressure of a misting system to be 4-7 MPa, while that of a fogging system is above 7 MPa.</p> <p>The rated pressure of PE tubing commonly used in misting systems is 7 MPa. If this pressure is exceeded, the PE tubing cannot operate long-term and will detach from the fittings. The brass/Nickel-plated brass mist nozzles used in misting systems are at risk of bursting when pressure exceeds 7 MPa.</p> <p>In contrast, fogging systems operating at pressures above 7 MPa utilize stainless steel tubing, stainless steel fittings, and stainless steel nozzles designed to withstand higher pressures. Even at pressures exceeding 10 MPa, the system components remain highly stable.</p> <h2>Misting System</h2> <p>Typically employs single-fluid high-pressure atomizing nozzles that rely on water pressure to atomize water droplets into micron-sized particles. These systems feature a simple structure and lower cost, making them suitable for large-area coverage.</p> <h2>Fogging System</h2> <p>These systems typically use two-fluid (air-water mixture) nozzles or specialized single-fluid high-pressure atomizing nozzles. They achieve nano-scale atomization through compressed air assistance or extremely high water pressure, ensuring that the droplets do not settle in the air and creating a "visible fog" effect.</p> <p> <table> <tbody> <tr> <th>Characteristics</th> <th>Misting System</th> <th>Fogging System</th> </tr> <tr> <td>Droplet size</td> <td>Typically 10–50 μm, with some as small as 3–15 μm</td> <td>Generally < 10 μm, approaching an aerosol state, capable of remaining suspended for extended periods</td> </tr> <tr> <td>Main functions</td> <td>Cooling, humidification, dust removal, disinfection, landscaping</td> <td>Landscape fogging, precise humidity control, biosecurity containment</td> </tr> <tr> <td>Operating Pressure</td> <td>4–7 MPa</td> <td>Most require >7 MPa, with some systems reaching 10–15 MPa to achieve ultra-fine atomization</td> </tr> <tr> <td>Typical applications</td> <td>Greenhouse cooling, construction site dust suppression, odor control, mosquito control, livestock farm disinfection, and fogging for landscaping</td> <td>Plant factories, stage effects, high-end landscape architecture <p> </p> </td> </tr> </tbody> </table> </p> <p>In the agricultural and greenhouse sectors (such as Dutch smart greenhouses), "fogging" specifically refers to ultra-fine mist systems capable of maintaining an air relative humidity (RH) of 90% or higher, whereas “misting” is more commonly used for intermittent cooling and landscaping systems.</p>]]>