DongHwa Shell and Tube Heat Exchanger Replacement

Many industrial facilities operate DongHwa shell and tube heat exchangers that have been in service for years under demanding thermal and mechanical conditions. Over time, issues such as tube fouling, corrosion, reduced heat transfer efficiency, and rising maintenance costs make replacement or retrofit a more economical and reliable option than continued repair.

We provide custom-engineered shell and tube heat exchanger replacements designed to match or exceed the original DongHwa unit’s performance—while ensuring compatibility with existing piping, foundations, and operating conditions.

When Is DongHwa Heat Exchanger Replacement Required?

Replacement is typically recommended when:

• Heat transfer capacity has significantly declined

• Tube leakage or repeated tube plugging occurs

• Shell or tube materials are no longer suitable for the process fluid

• Spare parts or OEM support are limited or discontinued

• Plant upgrades require higher capacity or improved efficiency

A properly designed replacement can restore system performance without major system modification or downtime.

Drop-In Replacement Design Philosophy

Our DongHwa shell and tube heat exchanger replacements are engineered as drop-in or near drop-in solutions, focusing on:

• Identical nozzle locations and sizes

• Matching thermal duty and pressure drop

• Compatible overall dimensions and supports

• Adaptation to existing foundations and pipe routing

This approach minimizes installation time and avoids costly plant rework.

Performance Enhancement Options

While maintaining mechanical compatibility, replacement units can incorporate modern design improvements, including:

• Optimized tube layout and baffle spacing

• Higher-efficiency tube materials or enhanced surfaces

• Improved flow distribution to reduce fouling

• Upgraded sealing and gasket systems

• Better corrosion resistance for extended service life

These upgrades often result in higher efficiency and lower operating cost compared to the original unit.

Replacement Process Overview

1. Data collection: Nameplate data, drawings, and operating conditions

2. Thermal & mechanical verification

3. Customized replacement design

4. Manufacturing and quality inspection

5. Pressure testing and documentation

6. Delivery and installation support