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Our engineers know the complex challenges of process industries.

Whether you're dealing with extreme operating temperatures, thermal stress, heavy fouling, corrosive fluids, or space constraints, you need a heat exchanger that's tailored for your process. That's why our engineers work with you to size, design, and manufacture a solution that meets all your necessary specs and performance requirements.

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A formula for success.

Issues: Space restrictions, high thermal stress, and close temperature approaches.

Solution: Hairpin heat exchangers.

Common Closure Hairpin
Common Closure Hairpin


Separated Closure Hairpin
Separated Closure Hairpin


Smaller equipment footprint.

A hairpin requires half the overall length of a countercurrent shell and tube equivalent.

Stackable designs.

Supports spanning the full height of the shells allow for the stacking of multiple units in a series arrangement.

Differential thermal expansion.

The tubes in a hairpin are free to expand so expansion joints are not needed, which saves on up-front costs.

High terminal temperature gradient tolerance.

Terminal ends are decoupled, preventing potential failure from thermal stresses.

Pure countercurrent flow.

Temperature cross between fluids and close temperature approaches can be handled in a single hairpin instead of multiple shell and tube units.

Thermal effciency.

Special closure styles handle high tube-side pressure with better thermal effciency and a smaller shell.

High pressure design.

Unique sealing mechanisms allow for high pressure designs with the convenience of a removable bundle.

Learn More About the Hairpin



A formula for success.

Issue: Extreme operating conditions using harsh fluids.

Solutions: Welded plate heat exchangers and welded plate and shell.

In welded plate heat exchangers, each plate is sealed by welds instead of gaskets, increasing their ability to withstand extremely high operating pressures and temperatures and eliminating downtime for gasket service.

All-Welded Plate Heat Exchanger
SIGMAWIG All-Welded Plate Heat Exchanger


All-welded plate heat exchanger.

For temperatures up to 570°F (300°C) and pressures up to 580 psig (35 bar).
Connection sizes up to 6" (DN150).


Rugged welded construction.

Higher level of security when processing harsh fluids and able to withstand vibration.

Countercurrent flow.

Optimum flow resulting in minimum heat transfer surface required.

Compact design.

Minimum space required resulting in cost savings for cabinet size, foundations, and/or piping.

Welded plate and shell heat exchanger.
SIGMASHELL Welded Plate and Shell Heat Exchanger


Welded plate and shell heat exchanger.

For temperatures up to 1,022°F (550°C) and pressures up to 2,175 psig (150 bar).
Connection sizes up to 12" (DN300) on the plate side and up to 28" (DN700) on the shell side.


Various designs available.

Designs can be optimized with various flow configurations and pass arrangements.

Process security.

Circular plates and robust welded construction can withstand high thermal stresses.


Shell can be all-welded or accessible on the shell side for visual inspection and cleaning.


A formula for success.

Issue: Safeguarding against cross contamination and leaks.

Solutions: Double-tube double-tubesheet shell and tube heat exchangers and double-wall plate heat exchangers.

These specialized heat exchangers feature added security for the safe flow of fluids and easy visual detection of leaks, if they occur.

All-Welded Plate Heat Exchanger
Double-Tube Double-Tubesheet Shell and Tube Heat Exchangers


Double-tube double-tubesheet shell and tube heat exchangers.


Reinforced construction.

Double-tube construction prevents fluid contamination if leaks occur across the tube wall or at the tube-to-tubesheet joints.

Intermediate fluid chamber.

If a leak occurs at the tube-to-tubesheet joint, the contaminating fluid enters a safety chamber between the tubesheets to prevent cross contamination.

Easy leak detection.

Leaks can be quickly detected via visual inspection or pressure monitoring of the intermediate fluid chamber between tubesheets.

Welded plate and shell heat exchanger.
Double-Wall Plate Heat Exchangers


Double-wall plate heat exchangers.


Added protection layer.

Two high-efficiency, laser-welded plates are corrugated together at once to maximize heat transfer and contamination security.

Advanced leak safeguard.

In case of plate crack, the leakage first escapes into the gap between each plate pair and then to the outside of the heat exchanger.


Double-wall plate heat exchangers can be opened like standard single-plate heat exchangers for inspection and maintenance.


A formula for success.

Issues: Ensuring high efficiency, superior design, and long-term performance.

Solutions: Custom shell and tube and gasketed plate heat exchangers.

All-Welded Plate Heat Exchanger
Custom Shell and Tube Heat Exchanger


Custom shell and tube heat exchangers.


Multiple design options.

Available in all TEMA designs, ensuring the industry's most current and efficient configuration.

Operational flexibility.

Able to withstand the widest range of design pressures and temperatures.

Energy efficiency.

Capable of handling large volumetric flows with low pressure drops.

Welded plate and shell heat exchanger.
Gasketed Plate Heat Exchanger


Gasketed plate heat exchangers.


Compact design.

Less surface area required and more surface area per installed volume.

Countercurrent flow.

Able to handle temperature crosses and close temperature approaches.


Bolted construction allows for easy service, assembly, expansion, and cleaning.


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