Industry-Verified Manufacturing Data (2026)

Vapor-Liquid Separator

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Vapor-Liquid Separator used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Vapor-Liquid Separator is characterized by the integration of Inlet Nozzle and Demister Pad / Mesh. 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 that separates vapor from liquid phases in a vacuum evaporation system.

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Product Specifications

Technical details and manufacturing context for Vapor-Liquid Separator

Definition
A critical component within a Multi-Stage Vacuum Evaporator Train that efficiently separates vaporized solvent or water from the concentrated liquid product stream, ensuring product purity and preventing liquid carryover into subsequent stages or the vacuum system.
Working Principle
Operates by directing the vapor-liquid mixture into a chamber where a sudden change in velocity and direction, often aided by internal baffles or demister pads, causes the denser liquid droplets to coalesce and fall out of the vapor stream by gravity, allowing the purified vapor to exit separately.
Common Materials
Stainless Steel (e.g., 304, 316L)
Technical Parameters
  • Diameter and height of the separator vessel. (mm) Customizable
Components / BOM
  • Inlet Nozzle
    Directs the vapor-liquid mixture into the separator tangentially or with a deflector to initiate separation.
    Material: Stainless Steel
  • Demister Pad / Mesh
    Coalesces fine liquid droplets from the vapor stream through impingement.
    Material: Stainless Steel Wire Mesh
  • Vapor Outlet Nozzle
    Allows the separated vapor to exit the vessel to the next stage or condenser.
    Material: Stainless Steel
  • Liquid Outlet Nozzle
    Drains the separated liquid from the bottom of the vessel.
    Material: Stainless Steel
  • Level Gauge / Sight Glass
    Provides visual indication or control signal for the liquid level inside the separator.
    Material: Glass / Stainless Steel Housing
Engineering Reasoning
0.1-1.0 bar absolute pressure, 20-150°C temperature, 0.5-5.0 m/s vapor velocity
Vapor velocity exceeds 6.0 m/s causing entrainment, liquid level drops below 15% of vessel height causing vapor bypass, pressure drop exceeds 0.3 bar causing flooding
Design Rationale: Droplet entrainment due to excessive vapor velocity exceeding terminal settling velocity (Stokes' law violation), vapor bypass through demister pad due to insufficient liquid seal height, flooding from excessive pressure drop across separation media
Risk Mitigation (FMEA)
Trigger Demister pad fouling with 0.5 mm particulate accumulation
Mode: Pressure drop increase to 0.4 bar causing liquid carryover
Strategy: Install dual-stage demister with 150 micron pre-filter and automated backflush system
Trigger Thermal expansion differential of 2.1 mm between vessel and internals at 150°C
Mode: Internal component misalignment causing 40% separation efficiency loss
Strategy: Design with Invar 36 alloy internals (CTE 1.2×10⁻⁶/°C) matching carbon steel vessel expansion

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vapor-Liquid Separator.

stainless steel vapor liquid separator vacuum evaporation system separator demister pad vapor separator 304 stainless steel phase separator industrial liquid vapor separation equipment

Applied To / Applications

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

Multi-Stage Vacuum Evaporator Train
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Vacuum to 10 bar
flow rate: Up to 50 m³/h
temperature: -20°C to 200°C
slurry concentration: Up to 30% solids by weight
Media Compatibility
✓ Water vapor and condensate ✓ Organic solvent vapors and liquids ✓ Food-grade steam and condensate
Unsuitable: Highly corrosive acidic environments (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Vapor flow rate (kg/h or m³/h)
  • Liquid droplet size distribution (microns)
  • Required separation efficiency (%)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced wall thinning
Cause: Exposure to corrosive process fluids (e.g., acids, chlorides) combined with moisture condensation, leading to material degradation and loss of structural integrity.
Liquid carryover or gas bypass
Cause: Inadequate separation efficiency due to fouling of internals (demister pads, baffles), improper liquid level control, or exceeding design flow rates, resulting in downstream equipment damage.
Maintenance Indicators
  • Visible external corrosion, pitting, or weeping at seams/welds
  • Abnormal pressure fluctuations or increased differential pressure across the separator
Engineering Tips
  • Implement regular ultrasonic thickness testing (UTT) at corrosion-prone areas and maintain a corrosion management program with appropriate material selection (e.g., corrosion-resistant alloys or linings).
  • Optimize and routinely inspect internals (demisters, baffles, level controls), ensure proper liquid drainage, and adhere to design operating envelopes for flow rates and temperatures.

Compliance & Manufacturing Standards

Reference Standards
ISO 5167: Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full ASME B31.3: Process Piping DIN EN 13445: Unfired pressure vessels
Manufacturing Precision
  • Bore diameter: +/-0.05mm
  • Surface finish: Ra 0.8μm
Quality Inspection
  • Hydrostatic pressure test
  • Dimensional verification with CMM

Factories Producing Vapor-Liquid Separator

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

T Technical Director from Canada Feb 11, 2026
★★★★★
"The Vapor-Liquid Separator we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from United States Feb 08, 2026
★★★★☆
"Found 48+ suppliers for Vapor-Liquid Separator on CNFX, but this spec remains the most cost-effective. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Feb 05, 2026
★★★★★
"The technical documentation for this Vapor-Liquid Separator is very thorough, especially regarding technical reliability."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Vapor-Liquid Separator from Mexico (1h ago).

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Frequently Asked Questions

What materials are used in your vapor-liquid separators?

Our separators are constructed from corrosion-resistant stainless steel grades 304 and 316L, ensuring durability in demanding industrial environments.

How does the demister pad work in a vapor-liquid separator?

The demister pad or mesh captures liquid droplets from the vapor stream through impingement, allowing clean vapor to exit while collected liquid drains back into the separator.

What industries use vapor-liquid separators in machinery manufacturing?

These separators are essential in chemical processing, pharmaceutical production, food and beverage manufacturing, and any industry using vacuum evaporation systems for phase separation.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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