|Blog Posts
Blog Posts 2017-09-08T15:25:28+00:00

Metal Bellows for Beginners

By | February 16th, 2018|

What are Metal Bellows? Metal bellows are like elastic vessels that have the ability to be compressed when pressure is applied. They then re-expand back to their original shape when the pressure is off. They also extend when under a vacuum, and of course, go back to their original shape when the vacuum is released. The key component of metal bellows is that they are flexible. This balance can be [...]

Comparing Fabric And Metal Expansion Joints: Is One Better Than The Other?

By | December 29th, 2017|

Choosing the right type of expansion joints can be difficult. There are so many different types, materials, and features associated with each that it can be nearly impossible to ascertain which is right for your application. Fabric and metal bellows and expansion joints are both common and come with a number of advantages and disadvantages. Here are just a few pros and cons to consider when deciding between fabric [...]

Understanding The Essential Role of Expansion Joints In A Ship’s Main Engine

By | December 27th, 2017|

Wondering what bellows are used for in modern engineering? There's no one answer to this question, and these components have a wide range of applications. Metal exhaust bellows and expansion joints have countless applications in the exhaust industry, but perhaps most interestingly, the exhaust gas system of a ship's engine. The exhaust gas system of a marine engine has five main components: the exhaust gas pipes, the exhaust gas boiler, [...]

4 Surprising Installation-Related Causes Of Metal Expansion Joint Failures

By | November 14th, 2017|

If you're dealing with metal bellows expansion joints failures, you're certainly not alone. Metal expansion joint failures are surprisingly common and have a number of causes, but one of the most common involves improper installation. Fortunately, understanding what leads to these failures can help you prevent them in the future. Here are just a few potential situations that can lead to improper installation of metal expansion joints. Improper Timing Of [...]


By | November 6th, 2016|

The pressure thrust imposed on the system piping anchors is nearly eliminated with the pressure balanced expansion joint design. Triad Bellows designs and manufactures both the 90 degree elbow style( shown) and the inline pressure balanced style. When space limitations prevent sturdy enough anchor designs this metal expansion joint comes to the rescue. Let our design engineers help you determine the right expansion joint for your piping system.

How Metal Bellows are Made

By | October 1st, 2016|

How Metal Bellows Are Made BELLOWS DESIGN Metal bellows and bellows expansion joints are placed in piping systems to absorb the thermal growth of the pipe. Each time the piping system heats up and cools down the bellows goes through 1 complete cycle.  The manufacturing of a metal bellows starts with the design process. The desired life cycle of the bellows or expansion joint must be determined in order to [...]

Typical causes for metal expansion joint failures

By | July 11th, 2016|

Typical Causes for Metal Expansion Joint Failures   The good news is that most metal bellows expansion joint failures are preventable when proper care is taken in the design, shipping, installation and testing of the joints. This article is meant to help prevent or identify the root causes of the most common piping expansion joint failures we encounter. When in doubt contact the experts at Triad Bellows to discuss your [...]

Metallic Exhaust Bellows VS Flex Hose…… What is the Difference?

By | April 30th, 2016|

Metal bellows VS exhaust flex hose …. What is the difference? This question gets asked over an over because of the price difference between the 2 products.  While in appearance at first glance they look alike but there are major differences. The purpose of this article is to educate you on the differences between single-ply and multi-ply flexible metallic bellows and corrugated exhaust flex hose. Yes, both types are flexible [...]