Before comparing thicknesses, let’s look at the underlying mechanics.<\/p>\n\n\n\n When a gas stream carrying entrained liquid droplets passes through a wire mesh demister:<\/p>\n\n\n\n Inertial Impingement: The gas turns freely around the narrow wire strands, but heavier liquid droplets possess higher inertia and collide directly with the wires.<\/p>\n\n\n\n Coalescence: As droplets collect on the wire mesh surfaces, they coalesce into larger drops.<\/p>\n\n\n\n Gravity Drainage: Once the gravitational force acting on the enlarged droplet exceeds the combined aerodynamic drag and surface tension, the droplet detaches and drains downward into the vessel sump.<\/p>\n\n\n\n The thickness of the pad determines the residence time and collision probability of liquid droplets inside the mesh matrix.<\/p>\n\n\n\n 100mm <\/strong>and <\/strong>150mm Demister Pads: Key Differences<\/strong><\/strong><\/p>\n\n\n\n While demister pads can be manufactured in custom depths ranging from 50mm to over 200mm, 100mm (4 inches) and 150mm (6 inches) represent over 85% of industrial installations worldwide.<\/p>\n\n\n\n Comparison Overview<\/strong><\/strong><\/p>\n\n\n\n 100mm (4 in) Demister Pads: The Industry Standard<\/strong><\/strong><\/p>\n\n\n\n A 100mm thick demister pad is the general-purpose workhorse of mist elimination.<\/p>\n\n\n\n Best For: Vessels with moderate separation requirements, strict pressure drop limitations, or tight budget constraints.<\/p>\n\n\n\n Key Advantages:<\/p>\n\n\n\n Minimal Pressure Drop: Requires less energy to push gas through the bed.<\/p>\n\n\n\n Lower Weight & Material Cost: Requires less wire mesh material and lighter support grids.<\/p>\n\n\n\n Sufficient Efficiency: Captures virtually all liquid droplets larger than 5 – 10\u03bcm<\/p>\n\n\n\n Typical Applications:<\/p>\n\n\n\n Steam drums and boiler knock-out pots<\/p>\n\n\n\n General gas scrubbers<\/p>\n\n\n\n Atmospheric distillation units<\/p>\n\n\n\n HVAC & intake mist removal<\/p>\n\n\n\n 150mm (6 in) Demister Pads: Enhanced Efficiency & Heavy Loading<\/strong><\/strong><\/p>\n\n\n\n A 150mm thick pad extends the gas flow path by 50%, significantly increasing the probability that fine mist droplets will strike a wire strand.<\/p>\n\n\n\n Best For: Critical separation processes where liquid carryover causes severe downstream contamination, or systems with high liquid loading.<\/p>\n\n\n\n Key Advantages:<\/p>\n\n\n\n Superior Fine Mist Capture: Achieves high removal efficiency for sub-micron and micro-mists down to 3\u03bcm.<\/p>\n\n\n\n Re-entrainment Resistance: Provides a deeper drainage zone that prevents collected liquid from being re-entrained into the outlet gas stream during flow surges.<\/p>\n\n\n\n Longer Service Life in Fouling Duty: Offers additional volume to trap suspended solids before blinding the mesh.<\/p>\n\n\n\n Typical Applications:<\/p>\n\n\n\n Vacuum distillation columns and fractionators<\/p>\n\n\n\n Amine absorbers & glycol dehydration towers in oil & gas<\/p>\n\n\n\n High-purity multi-stage flash (MSF) desalination evaporators<\/p>\n\n\n\n Sulfuric acid and chlorine gas mist elimination<\/p>\n\n\n\n Offshore production separators subject to vessel motion<\/p>\n\n\n\n A common source of confusion during procurement is equating pad thickness directly to performance without considering layer density.<\/p>\n\n\n\n Important: Layer count alone does not determine performance. A 100mm pad made with dense, fine wire can offer higher filtration efficiency than a loosely packed 150mm pad made with thick wire.<\/p>\n\n\n\n Demister performance depends on three interconnected parameters:<\/p>\n\n\n\n Wire Diameter : Typically ranges from 0.20mm to 0.28mm<\/p>\n\n\n\n Bulk Density: The weight of wire per cubic meter of pad volume 128kg\/m3<\/sup>-186kg\/m3<\/sup>(commonly for stainless steel).<\/p>\n\n\n\n Void Fraction : The percentage of open space in the pad (usually between 95% and 99%).<\/p>\n\n\n\n Application Selection Guide<\/strong><\/strong><\/p>\n\n\n\n Use this quick guide when choosing your demister specification:<\/p>\n\n\n\n As a direct manufacturer of wire mesh demister pads mist eliminators, we engineer and supply custom-sized round, rectangular, and multi-piece sectional pads in stainless steels (304, 304L, 316, 316L, 321), Nickel Alloys (Inconel, Monel, Hastelloy), Titanium, and thermoplastics (PTFE, PP).<\/p>\n\n\n\n Need help calculating your vessel K-factor, pressure drop, or layer density?<\/strong> <\/p>\n\n\n\n Contact our technical engineering team today for custom calculations, CAD drawings, and factory-direct quotes.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" In gas-liquid separation technology, specifying the right wire mesh mist eliminator (demister pad) is critical to process plant performance. A improperly sized demister can cause liquid carryover, downstream equipment corrosion, or unnecessary pressure drops that burn energy. How a Wire Mesh Demister Pad Works Before comparing thicknesses, let’s look at the underlying mechanics. When a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[92,264,260,93],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/posts\/990"}],"collection":[{"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=990"}],"version-history":[{"count":1,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/posts\/990\/revisions"}],"predecessor-version":[{"id":993,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=\/wp\/v2\/posts\/990\/revisions\/993"}],"wp:attachment":[{"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.webwirescreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/www.webwirescreen.com\/wp-content\/uploads\/2026\/08\/demister-pad-working.jpg\")
<\/figure>\n\n\n\nParameter<\/td> 100mm (4 in) Thickness<\/td> 150mm (6 in) Thickness<\/td><\/tr> Separation Efficiency<\/td> 98% \u2013 99%<\/td> 99.5% \u2013 99.9%<\/td><\/tr> Typical Layer Count<\/td> 25 – 30 layers<\/td> 38-45 layers<\/td><\/tr> Pressure Drop ($\\Delta P$)<\/td> Low<\/td> Moderate<\/td><\/tr> Gas Velocity Tolerance<\/td> Higher velocity window<\/td> Lower velocity limit before re-entrainment<\/td><\/tr> Liquid Loading Handling<\/td> Moderate liquid carryover<\/td> High liquid retention & surge handling<\/td><\/tr> Primary Advantage<\/td> Cost-effective, lower pressure drop<\/td> Maximum purity, ultra-low carryover<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Understanding Layer Counts & Mesh Density<\/strong><\/strong><\/h2>\n\n\n\n
Application<\/strong><\/td> Recommended Thickness<\/strong><\/td> Recommended Material<\/strong><\/td> Key Reason<\/strong><\/td><\/tr> Inlet Knockout Drum<\/strong><\/td> 100mm<\/td> SS304 \/ SS316L<\/td> Low pressure drop; primary goal is removing bulk liquids.<\/td><\/tr> Amine Contactor Unit<\/strong><\/td> 150mm<\/td> SS316L \/ Alloy 400<\/td> Prevents costly amine solvent carryover downstream.<\/td><\/tr> Desalination Evaporator<\/strong><\/td> 150mm<\/td> Monel 400 \/ Titanium<\/td> Prevents salt carryover into distillate steam.<\/td><\/tr> Sulfuric Acid Plant<\/strong><\/td> 150mm (Co-knit)<\/td> Alloy 20 \/ PTFE Co-knit<\/td> Captures fine acid mists in highly corrosive environments.<\/td><\/tr> Boiler Steam Drum<\/strong><\/td> 100mm<\/td> SS304 \/ SS316L<\/td> Standard steam purity requirements<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n ![\"\"](\"https:\/\/www.webwirescreen.com\/wp-content\/uploads\/2026\/08\/mesh-demister.jpg\")
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