INDUSTRY COMPONENT

Mesh Pad

Mesh pad is a structured packing component used in demisters and mist eliminators to separate liquid droplets from gas streams through impaction and coalescence.

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Component Specifications

Definition
A mesh pad is a critical component in demister/mist eliminator systems, consisting of multiple layers of knitted or woven metal or plastic wires arranged in a specific pattern to create a tortuous path for gas flow. It functions by capturing fine liquid droplets (typically 3-50 microns) through inertial impaction, direct interception, and Brownian diffusion mechanisms, allowing the coalesced liquid to drain while permitting clean gas to pass through.
Working Principle
The working principle involves three main mechanisms: 1) Inertial impaction - larger droplets cannot follow gas streamlines and impact wire surfaces; 2) Direct interception - droplets following streamlines contact wire surfaces; 3) Brownian diffusion - smallest particles diffuse to wire surfaces. Captured droplets coalesce into larger droplets that drain by gravity.
Materials
Stainless steel (304, 316, 316L), polypropylene, PTFE, PVDF, nickel alloys, or specialized corrosion-resistant alloys. Wire diameters typically 0.1-0.3mm with specific surface area 100-300 m²/m³.
Technical Parameters
  • Density 80-200 kg/m³
  • Efficiency 99.5-99.9% for droplets >3 microns
  • Pad Thickness 100-300 mm
  • Pressure Drop 25-150 Pa at design velocity
  • Wire Diameter 0.1-0.3 mm
  • Operating Pressure Vacuum to 10 bar
  • Operating Temperature -40°C to 400°C (material dependent)
  • Specific Surface Area 100-300 m²/m³
Standards
ISO 2942, DIN 19569, ASME BPE, FDA CFR 21

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mesh Pad.

mesh pad demister pad mist eliminator wire mesh separator coalescing filter gas-liquid separation industrial filtration process equipment Mesh Pad in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Demister/Mist Eliminator

A device used to remove liquid droplets or mist from gas streams in industrial processes.

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Mist Eliminator

A device that removes liquid droplets or mist from gas streams by impaction, interception, and diffusion.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Fouling and plugging
  • Corrosion in aggressive environments
  • Structural collapse at high velocities
  • Liquid re-entrainment
  • Fire hazard with flammable materials
FMEA Triads
Trigger: High liquid loading exceeding design capacity
Failure: Flooding and liquid carryover
Mitigation: Install liquid level controls, increase pad thickness, or add pre-separation stages
Trigger: Corrosion from aggressive chemicals
Failure: Structural degradation and efficiency loss
Mitigation: Select appropriate corrosion-resistant materials, implement corrosion monitoring, establish replacement schedules
Trigger: Fouling from particulates or polymerization
Failure: Increased pressure drop and reduced capacity
Mitigation: Install pre-filters, implement regular cleaning protocols, use anti-fouling coatings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% on wire diameter, ±5% on pad density, ±3mm on overall dimensions
Test Method
ISO 2942 for bubble point test, ASME BPE for surface finish, ASTM E11 for wire mesh specifications, in-situ efficiency testing per manufacturer protocols

Buyer Feedback

★★★★☆ 4.5 / 5.0 (16 reviews)

"Found 40+ suppliers for Mesh Pad on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Mesh Pad is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Chemical Manufacturing environments. No issues with the Mesh Pad so far."

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Frequently Asked Questions

What is the typical efficiency range for industrial mesh pads?

Industrial mesh pads typically achieve 99.5-99.9% efficiency for droplets larger than 3 microns, with efficiency decreasing for sub-micron particles where additional filtration stages may be required.

How do you determine the appropriate mesh pad thickness?

Pad thickness is determined by required efficiency, gas velocity, liquid loading, and pressure drop constraints. Thicker pads (200-300mm) provide higher efficiency but increase pressure drop and cost.

What maintenance is required for mesh pads?

Regular inspection for fouling, corrosion, or physical damage; periodic cleaning with compatible solvents or steam; replacement when efficiency drops below design specifications or pressure drop exceeds allowable limits.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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