Why Won’t This Tube Expand

2025-04-18T13:12:05-05:00

When expanding heat exchanger tubes, achieving the proper wall reduction is crucial for a secure and leak-free seal. Sometimes, however, tubes fail to expand sufficiently, hindering the integrity of the vessel. This article outlines common causes and troubleshooting steps for incomplete tube expansion.

Why Won’t This Tube Expand2025-04-18T13:12:05-05:00

Expanding Thicker Tube Sheets in Heat Exchangers: A Practical Guide for Operators

2025-04-11T13:45:22-05:00

Heat exchangers are critical components in nuclear, petrochemical, and energy production, often operating under high pressure and corrosive environments. These demanding conditions frequently necessitate the use of thicker tube sheets to ensure longevity and structural integrity. While thicker tube sheets offer enhanced durability, they present unique challenges during the tube expansion process.

Expanding Thicker Tube Sheets in Heat Exchangers: A Practical Guide for Operators2025-04-11T13:45:22-05:00

Stress Corrosion Cracking In Heat Exchangers

2025-04-24T07:05:11-05:00

Premature tube failure is a leading cause of downtime in heat exchangers operating in corrosive environments. Stress corrosion cracking is a common tube failure mode in corrosive environments, impacting any number of tubes in a vessel. While stress corrosion can be difficult to identify in the field, there may be ways to reduce the likelihood of occurrence.

Stress Corrosion Cracking In Heat Exchangers2025-04-24T07:05:11-05:00

Anatomy of A Tube Expander

2025-03-20T07:20:22-05:00

Tube expanding is a technique used to create a secure connection between a tube and tube sheet, by compressing the outer diameter against a fixed surface. This process ensures a leak-proof joint that is crucial for the proper functioning of heat exchangers and other pressure vessels.

Anatomy of A Tube Expander2025-03-20T07:20:22-05:00

Strategies for Successful Heat Exchanger Tube Plugging

2025-02-13T11:20:40-05:00

Plugging leaking tubes in heat exchangers is a critical maintenance task. However, this seemingly straightforward procedure can present a multitude of challenges that can impact both the success of the plug and the overall maintenance process. These challenges include creating a secure seal due to suboptimal tube conditions, limited reach and accessibility, and the availability of suitable plugging materials.

Strategies for Successful Heat Exchanger Tube Plugging2025-02-13T11:20:40-05:00

Common Types of Tube Failure– Fouling & Corrosion

2025-02-14T15:32:00-05:00

Heat exchangers are essential for many industries, but their performance can be significantly impacted by fouling and corrosion. These can lead to reduced efficiency, increased maintenance costs, and potential safety hazards. Understanding the mechanisms, impacts, and prevention strategies for fouling and corrosion is crucial for ensuring the optimal operation of heat exchangers.

Common Types of Tube Failure– Fouling & Corrosion2025-02-14T15:32:00-05:00

How To Retube an Air Cooler

2024-12-30T14:53:08-05:00

Tube removal is a common challenge regardless of the application. In air cooled exchangers, the layout of the tubes, as well as the outer diameter of the fins, could pose some challenges if using traditional methods. However, there are a few tips to make this process quicker.

How To Retube an Air Cooler2024-12-30T14:53:08-05:00

Avoiding Common Pitfalls of Tube Extraction

2025-04-24T07:06:08-05:00

Tube removal can be a daunting task, especially when encountering challenges like corrosion or tight spaces. One of the most frustrating situations operators face is the inability to pull a tube using a hydraulic puller. This article explores the four primary reasons behind this issue and offers simple solutions to overcome them.

Avoiding Common Pitfalls of Tube Extraction2025-04-24T07:06:08-05:00

Increase Tool Life On Tough Materials

2024-06-27T12:17:01-05:00

As end users strive for increased heat transfer efficiency, customers are often tasked with building vessels that will withstand heavy use and the test of time. This often results in the use of more wear resistant tube sheet and tube materials, such as Inconel, Hastelloy, and Duplex Stainless Steel. While exotic materials often mean longer tube life, they can take a big toll on expander tool life.

Increase Tool Life On Tough Materials2024-06-27T12:17:01-05:00
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