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What are the guidelines on how to locate anchors and expansion joints in chilled water risers?

The anchors are located at the lower floor and upper floor of chilled water risers and guides should be located on alternating ...Continue Reading

What are intermediate anchors used for in the expansion joint system?

An intermediate anchor is a stop in the piping system that divides the movement between expansion joints.

What are convolutions on bellows for expansion joints?

When specifying expansion joints for industrial piping, or any application, understanding the anatomy of the flexible element is essential. A ...Continue Reading

What anti-corrosion coatings are used on expansion joints?

We generally use universal primer for expansion joints, unless the customer specifies a specific paint.

The axial load is transferred through expansion joint itself and the limit rod is for safety? Is my understanding is correct?

Yes, the limit rod will prevent damage of expansion joint in case of anchor failure in the line. Also, the ...Continue Reading

Is there a pressure limit to start to use a wall thick EJ?

Is the branch of a balanced Tee in the normal process flow path? Or is it sealed off?

Is seamless tube available instead of a butt welded tube for metallic expansion joints?

It depends upon the diameter of the expansion joints. Generally for the smaller expansion joints, seamless is available.

Is it okay to put guides on only one side of the expansion joint?

It depends upon the pipeline design. For example, if there is a long run of pipe on both sides, then ...Continue Reading

Is it okay to punch a hole into an expansion joint?

Is an In-line pressure balanced pipe expansion joint more expensive than the similar type of expansion joints?

Yes, this expansion joint is obviously more expensive than the similar types, however they may result in a lower overall ...Continue Reading

Is 304 Stainless safe for applications installed near the ocean where the metal may be more susceptible to corrosion or would you recommend another material?

Yes, it is safe to use 304 Stainless Steel, but high alloy materials such as Inconel® and Monel® are better ...Continue Reading

In what situations would you pre-compress piping expansion joints?

Expansion joints should be pre-compressed for low-temperature/cryogenic applications because when the pipe gets cold it will contract.

How would I determine the equivalent length of an expansion joint within a piping system?

We have standard lengths that are listed in our catalog, however, we can make our expansion joints longer or shorter than ...Continue Reading

How much tension is needed to prevent a pipe from buckling?

Buckling typically occurs while the pipe in compression mode and is not normally related to the tension mode of the pipe.

How long is an expansion joint cycle?

The expansion joint cycle is a design condition – stated by the customer or a number we provide according to the design ...Continue Reading

How do you seal high temperature furnaces?

We recommend the use of furnace bags to seal high temperature tubes that penetrate the furnace floor.

How do you remove an expansion joint from a pipeline?

In order to remove an expansion joint from a pipeline you must first shut off the fluid or gas flowing through the ...Continue Reading

How do you order an expansion joint?

As a minimum the following information should be provided when ordering an expansion joint: Size of the line. Design pressure. Design temperature. ...Continue Reading

How do you decide the number of convolutions for a bellows?

The number of convolutions is based upon EJMA design formulas for bellows.