Industry-Verified Manufacturing Data (2026)

Evaporator

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Evaporator 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 Evaporator is characterized by the integration of Coil Tubes and Fins. In industrial production environments, manufacturers listed on CNFX commonly emphasize Copper construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A heat exchanger component in a refrigeration system where refrigerant absorbs heat from the surrounding environment, causing it to evaporate from liquid to vapor.

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Product Specifications

Technical details and manufacturing context for Evaporator

Definition
The evaporator is a critical component within refrigeration and air conditioning systems where the actual cooling effect occurs. It functions as a heat exchanger where low-pressure, low-temperature liquid refrigerant absorbs thermal energy from the medium being cooled (air, water, or another fluid), causing the refrigerant to boil and change phase into a vapor. This heat absorption process cools the target medium. In a typical vapor-compression refrigeration cycle, the evaporator is positioned after the expansion device and before the compressor.
Working Principle
Liquid refrigerant, having passed through an expansion valve or capillary tube, enters the evaporator at low pressure and temperature. As it flows through the evaporator coils or tubes, it absorbs latent heat from the warmer surrounding medium (e.g., air blown across the coils). This heat transfer causes the refrigerant to evaporate, changing its state from a liquid to a saturated vapor. The now-cooled air or fluid is circulated to provide the desired cooling effect, while the vaporized refrigerant is drawn into the compressor to continue the cycle.
Common Materials
Copper, Aluminum, Steel
Technical Parameters
  • Tube diameter and fin spacing are critical for heat transfer efficiency and airflow resistance. (mm) Per Request
Components / BOM
  • Coil Tubes
    Channels through which the refrigerant flows, providing the primary surface for heat absorption.
    Material: Copper or Aluminum
  • Fins
    Thin metal plates attached to the tubes to increase the total heat transfer surface area and improve thermal efficiency.
    Material: Aluminum
  • Distribution Header
    Ensures even distribution of liquid refrigerant into multiple parallel coil circuits.
    Material: Copper or Brass
Engineering Reasoning
0.1-10 bar (1-1000 kPa) refrigerant pressure, -40°C to 120°C temperature range
Refrigerant pressure exceeds 15 bar (1500 kPa) causing tube burst, or temperature differential exceeds 150°C between inlet and outlet
Design Rationale: Thermal stress-induced fatigue cracking due to cyclic phase change expansion/contraction (coefficient of thermal expansion mismatch between copper tubes and aluminum fins: 16.6×10⁻⁶/K vs 23.1×10⁻⁶/K)
Risk Mitigation (FMEA)
Trigger Refrigerant oil accumulation exceeding 5% volume fraction in evaporator tubes
Mode: Heat transfer coefficient reduction from 1500 W/m²·K to below 300 W/m²·K
Strategy: Install oil separator with 99.7% efficiency upstream and implement automatic oil return system
Trigger Water ingress causing chloride ion concentration above 25 ppm in refrigerant circuit
Mode: Copper tube pitting corrosion at rate exceeding 0.5 mm/year
Strategy: Apply 50 μm epoxy coating on internal surfaces and install desiccant dryer with -40°C dew point control

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Evaporator.

industrial refrigeration evaporator coil copper evaporator for machinery cooling aluminum evaporator heat exchanger evaporator distribution header design heavy-duty steel evaporator BOM

Applied To / Applications

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

Refrigeration System
View system integration details
Refrigeration Unit
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 30 bar
flow rate: 0.5 to 50 m³/h
temperature: -40°C to 150°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Water/Glycol Solutions ✓ Ammonia Refrigerant ✓ Hydrocarbon Refrigerants
Unsuitable: Chlorinated Solvents
Sizing Data Required
  • Heat Load (kW)
  • Refrigerant Type and Properties
  • Required Evaporation Temperature

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Scaling and Fouling
Cause: Accumulation of mineral deposits, salts, or biological growth on heat transfer surfaces due to poor water quality, inadequate pretreatment, or insufficient blowdown cycles, leading to reduced heat transfer efficiency, increased energy consumption, and potential overheating.
Corrosion and Pitting
Cause: Chemical attack from aggressive process fluids, oxygen ingress, or improper pH control, exacerbated by high temperatures and stagnant conditions, resulting in wall thinning, leaks, and structural integrity loss, particularly in tubes, tube sheets, and shells.
Maintenance Indicators
  • Significant drop in evaporator efficiency (e.g., reduced condensate output or increased steam consumption without process changes)
  • Visible leaks, steam or vapor escaping from joints, or audible hissing sounds indicating pressure loss or seal failure
Engineering Tips
  • Implement a rigorous water treatment and blowdown control program to minimize scaling and fouling, including regular monitoring of TDS (Total Dissolved Solids) and pH levels.
  • Conduct periodic non-destructive testing (e.g., ultrasonic thickness gauging) on critical components like tubes and shells to detect early corrosion or wear, and apply protective coatings or cathodic protection where feasible.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASME BPVC Section VIII - Pressure vessel construction PED 2014/68/EU - Pressure Equipment Directive (CE marking)
Manufacturing Precision
  • Tube wall thickness: +/-0.1mm
  • Flatness of mounting surfaces: 0.2mm
Quality Inspection
  • Hydrostatic pressure test
  • Helium leak detection test

Factories Producing Evaporator

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

S Sourcing Manager from Canada Feb 21, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Evaporator arrived with full certification."
Technical Specifications Verified
P Procurement Specialist from United States Feb 18, 2026
★★★★☆
"Great transparency on the Evaporator components. Essential for our Machinery and Equipment Manufacturing supply chain. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from United Arab Emirates Feb 15, 2026
★★★★★
"The Evaporator we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
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.”

17 sourcing managers are analyzing this specification now. Last inquiry for Evaporator from Mexico (1h ago).

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Frequently Asked Questions

What materials are commonly used in industrial evaporators for machinery manufacturing?

Industrial evaporators are typically constructed from copper for excellent thermal conductivity, aluminum for lightweight corrosion resistance, or steel for heavy-duty durability, depending on the specific refrigeration system requirements.

How does an evaporator function in a refrigeration system?

The evaporator acts as a heat exchanger where liquid refrigerant absorbs heat from the surrounding environment, causing it to evaporate into vapor. This process cools the air or fluid being circulated through the system.

What are the key components in an evaporator's bill of materials (BOM)?

A standard evaporator BOM includes coil tubes for refrigerant flow, distribution headers to ensure even refrigerant distribution, and fins to maximize surface area for efficient heat transfer between the refrigerant and surrounding medium.

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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