Structured Manufacturing Data (2026)

Demister

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Demister used in the Chemical Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Demister is characterized by the integration of Mesh Pad / Packing and Support Grid / Frame. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (e.g., 304, 316L) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A device used to remove entrained liquid droplets from a gas or vapor stream.

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Product Specifications

Technical details and manufacturing context for Demister

Definition
A demister, also known as a mist eliminator or entrainment separator, is a critical component within an absorption column system. It is typically installed at the top of the column or in the vapor outlet line. Its primary function is to capture and coalesce fine liquid droplets (mist) that are carried upward by the gas/vapor stream, preventing liquid carryover into downstream equipment. This ensures product purity, protects compressors or other units, improves separation efficiency, and reduces solvent loss.
Working Principle
The demister operates based on inertial impaction, interception, and diffusion. As the gas/vapor stream laden with liquid droplets passes through the demister pad (usually made of knitted wire mesh, vane packs, or fiber beds), the droplets collide with the surfaces of the demister elements. These collisions cause the droplets to coalesce into larger droplets. Once the droplets become sufficiently large, gravity overcomes the drag force of the gas stream, causing the liquid to drain down the demister elements and back into the column or a collection sump, while the cleaned gas/vapor exits.
Common Materials
Stainless Steel (e.g., 304, 316L), Polypropylene (PP), Polytetrafluoroethylene (PTFE), Nickel Alloys
Technical Parameters
  • Standard thickness/depth of the demister pad or element. (mm) Per Request
Components / BOM
  • Mesh Pad / Packing Part
    The primary filtering element, typically a knitted wire mesh, vane pack, or fiber bed that captures and coalesces liquid droplets.
    Material: Stainless Steel, Plastic, or Specialty Alloy
  • Support Grid / Frame Part
    A structural frame that holds the demister pad in place within the column or housing, ensuring it maintains its shape and position under gas flow.
    Material: Carbon Steel or Stainless Steel
  • Liquid Drainage System
    Channels or gutters (if separate from the pad) that collect the coalesced liquid and direct it back into the column or to an outlet.
    Material: Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Demister.

stainless steel demister for chemical processing PTFE mesh pad demister corrosion resistant industrial vapor liquid separator demister high efficiency demister for corrosive gases custom demister with support grid and drainage

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Absorption Column System
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 100 bar (standard), higher with reinforced construction
flow rate: 0.1 to 100 m³/s (gas), velocity typically 1-5 m/s
temperature: -40°C to 400°C (typical), up to 600°C with special materials
slurry concentration: Up to 5% liquid by volume, droplet size >3-10 microns
Media Compatibility
✓ Steam systems (water droplets) ✓ Chemical process gases (acid mists) ✓ Compressed air systems (oil/water aerosols)
Unsuitable: High-viscosity liquids (>100 cP) or sticky/solidifying substances
Sizing Data Required
  • Gas flow rate (actual m³/h)
  • Operating pressure and temperature
  • Required separation efficiency (droplet size removal)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Mesh clogging/plugging
Cause: Accumulation of solids, salts, or viscous liquids in the mesh structure due to inadequate upstream filtration, process upsets, or chemical reactions forming deposits
Mesh degradation/structural failure
Cause: Corrosion from aggressive chemicals (acids, chlorides), mechanical damage from high velocity droplets or debris impact, or thermal stress from temperature cycling
Maintenance Indicators
  • Significant increase in pressure drop across the demister (typically >2x design differential pressure)
  • Visible liquid carryover in downstream equipment or audible 'sloshing' sounds indicating poor separation efficiency
Engineering Tips
  • Install proper upstream filtration (strainers, separators) and implement regular chemical cleaning/washing protocols to prevent fouling
  • Select corrosion-resistant mesh materials (e.g., 316L SS, alloys, or plastics) compatible with process chemistry and ensure proper installation to avoid stress concentrations

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 (Quality Management Systems) ASME BPE (Bioprocessing Equipment) PED 2014/68/EU (Pressure Equipment Directive)
Manufacturing Precision
  • Mesh Wire Diameter: +/-0.01mm
  • Support Grid Flatness: 0.5mm per meter
Quality Inspection
  • Pressure Drop Test (to verify design efficiency)
  • Material Composition Verification (via PMI or Spectrographic Analysis)

Factories Producing Demister

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Supply Chain Compatible Machinery & Devices

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Automated system for precise dispensing and homogeneous blending of powdered chemicals.

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Automated Solvent Recovery and Purification System

Automated system for recovering and purifying industrial solvents.

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Frequently Asked Questions

What materials are best for corrosive chemical applications?

For highly corrosive environments, PTFE (Teflon) or nickel alloys like Hastelloy offer superior resistance. 316L stainless steel is suitable for many common chemicals, while polypropylene (PP) provides cost-effective corrosion resistance for less aggressive streams.

How does the mesh pad design affect separation efficiency?

The mesh pad's density, material, and construction determine droplet removal efficiency. Denser pads with finer filaments capture smaller droplets but increase pressure drop. Proper selection balances efficiency with system energy requirements.

What maintenance does a demister require?

Minimal maintenance is needed with proper design. Periodic inspection of the mesh pad for fouling or damage, and ensuring the liquid drainage system remains unobstructed, maintains optimal performance. Materials like PTFE resist fouling in sticky applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Chemical Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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