Avoiding Expansion Joint Failure in Harsh Environments

Failure: a word nobody wants to hear, especially when it comes to critical components like expansion joints in piping systems. Expansion joints allow for movement and vibration in a piping system, which prevents stress and damage to the pipes. But in harsh environments, these joints are at a higher risk of failure due to extreme conditions such as high temperatures, corrosive chemicals, and abrasive materials.

You don’t want your piping system to fail and leak hazardous materials or cause costly downtime. Read on to learn how you can protect your expansion joints in harsh environments.

Choose the Right Materials

The first step to protecting your expansion joints in harsh environments is choosing the right materials. The material a metal bellow is made of can greatly affect its performance, from how it withstands high temperatures to its resistance to corrosion. Some common materials used for expansion joints include stainless steel, bronze, and titanium.

When selecting the material for your bellow, consider the conditions it will operate under. For example, if your piping system handles corrosive chemicals, you’ll want a material that’s highly resistant to corrosion such as titanium or nickel alloys. If your system operates at high temperatures, look for materials with good thermal conductivity and resistance, such as Inconel or Monel.

Install the Joints Correctly

Just like a wobbly IKEA table with uneven legs, a poorly installed expansion joint can’t hold up. In fact, it can result in leaks and structural failures. When installing your expansion joints, follow the manufacturer’s instructions carefully. Instructions can vary depending on the type of joint and the application, so avoid following generic guides on YouTube or online forums. Don’t rely on past experience with a different type of joint either!

Perform Regular Inspections

Even the most durable metals for extreme environments can fail if you don’t take care of them. Spend some time every few months checking over your joints. Your inspection should include both a visual and functional check.

The visual inspection should involve looking at the joint for signs of cracking, corrosion, or other damage. A functional inspection requires moving and manipulating the joint to confirm that it’s still working properly. If you notice any issues during these inspections, address them immediately. Small problems can quickly escalate into larger ones if left unresolved.

Lubricate the Expansion Joints

Lubrication reduces friction between moving parts, which can prevent damage and keep expansion joints functioning optimally. You should regularly apply an appropriate lubricant to the hinges, pivots, and other moving parts of the joints. This will extend their lifespan and prevent premature wear and tear.

Clean the Expansion Joints

Regularly cleaning your expansion joints can maintain their functionality in harsh environments. Dirt, debris, and other particles can get trapped in the joints. This can lead to blockages and hinder the joints’ ability to expand and contract. To clean your expansion joints, use a mild detergent and warm water solution, along with a soft bristle brush. Gently scrub the joints to remove build-up or debris. Then, rinse thoroughly and dry completely before reinstalling.

The last thing you need to ruin your day is a damaged expansion joint. The good news is that, even in the harshest of environments, these structural components can last for many years with proper maintenance and care. Take the time to care for your expansion joints, and in turn, they’ll provide you with reliable and effective function.