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Industrial Evaporative Condenser Technical Specifications & Procurement Guide

An industrial evaporative condenser rejects heat from refrigerant vapors by combining forced evaporation and sensible heat exchange. It replaces traditional shell-and-tube condensers and cooling towers, reducing condensing temperatures and compressor energy consumption.

Primary Function

Condensing refrigerant vapors (Ammonia R717, HFCs, CO2) in closed-loop industrial refrigeration and HVAC systems.

Target Industries

Industrial cold storage, food processing, chemical cooling, and large-scale commercial HVAC.

Core Value

Lowers condensing temperature by 3°C to 5°C compared to air-cooled systems, saving 15% to 25% in total compressor power consumption while minimizing facility footprint.

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Evaporative Condensing Unit
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Evaporative Condenser Coil
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Product Types & Selection

Selecting the correct evaporative condenser requires matching thermal load, refrigerant type, wet-bulb temperature, and spatial constraints.

EC-I Series (Induced Draft Counterflow)

Configuration: Fan mounted on top, vertical air discharge, counterflow water/air interaction.
Application: Standard industrial refrigeration and large cold storage. Minimizes footprint and prevents recirculation of discharge air.

EC-F Series (Forced Draft Crossflow)

Configuration: Centrifugal or axial fans mounted on the side, horizontal air intake.
Application: Indoor installations, noise-sensitive sites, or space with strict height limits.

Selection Criteria

Total Heat Rejection (Qr, kW or TR) based on compressor operating conditions.
Design Wet-Bulb Temperature (Twb) of the installation site.
Condensing Temperature (Tc) and Evaporating Temperature (Te).
Refrigerant type and operating pressure rating.

Technical Specifications

Engineering procurement requires strict verification of mechanical, thermal, and material parameters.

Engineering Support: 2D CAD dimensional drawings and 3D STEP models are available upon request for direct integration into plant design software.

Parameter Category	Specification Range / Standard
Capacity Range	10 TR to 600 TR per single unit (scalable via modular pairing)
Coil Material	Hot-Dip Galvanized (HDG) Steel, Stainless Steel 304 / 316L
Coil Pressure Rating	Design pressure up to 2.5 MPa (Pneumatic & hydrostatic tested)
Casing Material	Heavy-gauge Hot-Dip Galvanized Sheet (Z700 coating) / Optional SS304
Fan Type	Axial / Centrifugal, direct-drive or belt-drive, IP55 enclosure
Water Distribution	PVC / PP anti-clogging spray nozzles, high-efficiency drift eliminators
Manufacturing Standards	ASME Sec. VIII (coils), ISO 9001 quality management, CE compliance

Applications & Compatibility

Evaporative condensers operate in demanding industrial environments requiring robust corrosion resistance and thermal stability.

Refrigerants Handled

Ammonia (NH3), R404A, R134a, R507, and CO2 (R744).

Operating Conditions

Suitable for outdoor ambient temperatures from -30°C to +45°C. Low-ambient kits (electric heaters, VFD fan control) available for sub-zero regions.

System Integration

Directly integrates with screw and reciprocating compressor racks, intercoolers, and closed-loop liquid receivers in industrial refrigeration networks.

Customization & Supply

Manufacturing capabilities and logistics flexibility support large-scale engineering projects and OEM requirements.

Customization Options

Split-chassis construction for restricted transport dimensions or heavy crane limits.
Special metallurgy: Full stainless steel (SS304/SS316) structural frames and wetted components for coastal or chemical plants.
Vibration isolators, basin heaters, and ladder/platform configurations.

Manufacturing Infrastructure

Automated CNC tube-bending and fin-stamping lines ensure uniform coil geometry.
Hot-dip galvanizing after complete fabrication prevents edge corrosion.
Every condensing coil undergoes a 2.5 MPa pneumatic leak test submerged in a water bath prior to assembly.

Global Logistics & Shipping

Modular units engineered specifically to fit standard 40ft High Cube (40HC) containers or Open-Top / Flat Rack containers for over-dimensional configurations.
Standard production lead time: 4 to 6 weeks.

Quality Control & Support

Rigorous factory testing and documentation ensure compliance with international engineering standards.

Quality Inspection Process

Raw material spectral analysis for steel plates and seamless tubes.
X-ray and ultrasonic testing on critical pressure-vessel welds.
Pre-shipment run test of rotating assemblies (fan, motor, drive alignment and current draw).

Documentation Package Provided

ASME/CE material test certificates (MTRs).
Hydrostatic/pneumatic test reports.
Installation, Operation, and Maintenance (IOM) manuals, electrical wiring diagrams, and spare parts lists.

Frequently Asked Questions

Q: How do I select an evaporative condenser if my site wet-bulb temperature changes seasonally?

A: Selection must be based on the peak summer design wet-bulb temperature and maximum heat rejection load. For variable loads, multi-cell units or VFD-controlled fan systems maintain stable condensing pressure.

Q: What is the standard anti-corrosion treatment for the steel casing and coils?

A: The structural frame and casing use hot-dip galvanized steel with a minimum zinc coating weight of 700 g/m² (Z700). Coils are hot-dip galvanized after fabrication to eliminate weld-zone corrosion. Full stainless steel options are available for corrosive environments.

Q: Can these condensers operate safely with Ammonia (R717)?

A: Yes. Coils designed for ammonia utilize heavy-wall steel tubing specifically rated for high-pressure R717 systems, certified under stringent pneumatic testing protocols.

Q: What maintenance is required to prevent scaling and biological growth?

A: Regular basin blowdown, water hardness control, biocide dosing, and periodic inspection of drift eliminators and spray nozzles prevent scaling and Legionella growth.

Q: Are replacement parts (fans, motors, nozzles) standardized for easy sourcing?

A: Yes. All components utilize globally standardized industrial grades, allowing local sourcing of replacement motors, bearings, and belts without proprietary lock-in.

Q: What is the typical lead time for custom or non-standard configurations?

A: Standard models ship within 4 weeks. Custom configurations involving specialized materials (such as SS316 coils) or split-chassis designs require 6 to 8 weeks depending on engineering approval.

Request a Quote (RFQ)

To receive a formal technical proposal and commercial quotation, submit the following parameters to our engineering team:
Total Heat Rejection (Qr) or Compressor Model
Refrigerant Type and Evaporating/Condensing Temperatures
Site Design Wet-Bulb Temperature (Twb)
Power Supply (Voltage / Frequency / Phase)
Special Material or Certification Requirements

Zhejiang Xuanyuntong Refrigeration Technology Co., Ltd. is one of the most experienced evaporative condenser manufacturers and suppliers in China. We warmly welcome you to wholesale high quality evaporative condenser made in China here from our factory. Also, custom service is available.