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What is the difference of the expansion joint at the elbow, one with expansion joint at the outside of elbow and the other without it?

The bellows outside the elbow is called the balancing bellows. This bellows compensates for the movements. The elbow acts as an intermediate ...Continue Reading

What is the difference between tie rod and limit rod?

Understanding what a tie rod does versus what a limit rod does is essential when specifying expansion joints for industrial ...Continue Reading

What is the bellows of an expansion joint?

A bellows is the flexible element of an expansion joint consisting of one or more convolutions and the end tangents, if any.

What is lateral deflection?

Lateral deflection is movement perpendicular to the axial plane of the expansion joint. It is a shear motion on the bellows.

What is free length in an expansion joint bellows?

Free length is the neutral length of the expansion joint bellows. This is the length of the bellows that has neither been ...Continue Reading

What is flow rate?

The flow rate is the amount of liquid passing through a particular area over a period of time. It is generally measured ...Continue Reading

What is expansion joint O.A.L.?

What is bellows I.D.?

What is a swing expansion joint?

A swing expansion joint is another term used for a hinge type expansion joint.

What is an RFSO flange?

Engineers need to select the right connection hardware to ensure a secure seal when assembling piping systems. An RFSO flange ...Continue Reading

What is angular deflection?

When an expansion joint experiences bending about its center, which is on the centerline and halfway between the ends of the bellows, ...Continue Reading

What is an FCC unit?

An FCC unit is a fluid catalytic cracking unit, which is a type of process that is used in refining ...Continue Reading

What is an expansion joint?

An expansion joint is an assembly used in a pipe line to allow it to expand and contract as climate conditions move ...Continue Reading

What is 300 psig?

This is an expansion joint specification meaning the expansion joint is rated for 300 pounds per square inch of pressure.

What happens if a fabric expansion joint is exposed to sudden pressure fluctuations, such being located near ID fans and dampers?

This may result in the belt fluttering. The fabric will fatigue over time resulting in tears. Using stiffer fabric material, ...Continue Reading

What does cold preset 2.5″ mean?

Cold preset of 2.5″ is performed in the shop on one side of the center line so that in operation ...Continue Reading

What causes expansion?

What are wipers on slip type pipe expansion joints?

On slip type pipe expansion joints special features such as wipers can be included to prevent clogging of the space ...Continue Reading

What are the travel limits for the tie rods?

The limiting factors correspond to the limiting factors of the bellows design in accordance with the specifications of each expansion joint.

What are the three basic movements within a joint?

The three basic movements within an expansion joint are axial, lateral, or angular rotation. All three of these movements do not generally ...Continue Reading