Product

Tubesheets

A tubesheet is a perforated plate used to support and secure tubes inside a heat exchanger, ensuring proper alignment and sealing between the tubes and the surrounding structure.

Tubesheets are essential components in heat exchangers, boilers, and pressure vessels, providing a structural foundation for securing tube bundles that facilitate fluid heat transfer.

We manufacture plates, discs, baffles, and finished tubesheets for shell and tube heat exchangers in various materials, all manufactured in line with major international standards, including ASTM, ASME, DIN, and EN.

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Tubesheets

Baffles

Discs and plates

PRODUCTS

Our standard materials

Alloy steel

Nickel alloys

Duplex stainless steel

Carbon steel

Stainless steel

Titanium

Copper alloys per ASTM B171 / ASME SB171 / DIN EN 1653

C46400 Naval brass
C61400 Aluminium bronze
C63000 AlNi bronze
C70600 90-10 CuNi

C71500 70-30 CuNi

We also produce clad plates made of different materials.

How we work

Designing and manufacturing our tubesheets

Tubesheets are vital support components in shell-and-tube heat exchangers, essential for efficient thermal energy transfer in a wide range of industrial processes. Their highly automated design and production ensure precision and reliability.

We use CAD software to create detailed designs and perform calculations, optimizing the layout and dimensions. Our CAM technology then translates these designs into precise instructions for CNC machines, which handle the drilling and fabrication of the tubesheets with high accuracy.

This integration of CAD/CAM ensures that the tubesheets meet stringent quality standards and are perfectly suited to their demanding operational environments.
After this intricate process, our team of expert machinists drill our tubesheets with precision to accommodate the tube ends, according to our clients’ specifications. These tube ends are then expanded to secure them in place and create a tight seal.

Once installed, the sheets form a sealed unit that is bolted to flanges inside the shell, creating a chamber for liquid or gas heat exchange in boilers, heat exchangers, and other applications.

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In a shell-and-tube heat exchanger, two fluids are involved: one flows inside the tubes, while the other circulates outside. The tubesheet, which is in constant contact with both fluids, must be designed with corrosion resistance and metallurgical properties suitable for the specific fluids and their velocities.

To prevent galvanic corrosion between the tubes and tubesheets, it’s essential to select materials that are closely matched in the galvanic series, ensuring reliable and effective performance.

Frequently asked questions about tubesheets

What is the difference between tube and tubesheet?

A tube is a cylindrical component that carries fluid, while a tubesheet is a flat plate that supports and secures the tubes in a heat exchanger or pressure vessel. The tubes are inserted and fixed into holes drilled into the tubesheet.

What are tube sheets?

Tubesheets are perforated plates used to hold and support tubes in heat exchangers, boilers, and pressure vessels. They ensure precise alignment and secure attachment of tubes for optimal thermal performance.

What is the difference between floating and stationary Tubesheet?

A stationary tubesheet is fixed in place, typically welded to the shell, while a floating tubesheet is free to move to accommodate thermal expansion. Floating designs are used when high temperature differentials could cause stress or misalignment.

What size are tube sheets?

Tubesheet sizes vary widely based on application, ranging from a few inches to several meters in diameter. They are custom-designed based on tube count, spacing, and equipment specifications.