Thermal efficiency at low flow
Corrugated plates generate strong turbulence, even under low velocity. The result is high thermal performance and up to 4~5 times better efficiency than traditional shell-and-tube exchangers.
Product and Solutions
LHEBloc — Welded Plate and Frame Heat Exchanger
High-efficiency, gasket-free plate and frame heat exchanger for aggressive fluids, high pressures, and extreme temperatures.
Welded for reliability under pressure
The LHEBloc uses a fully welded plate pack that eliminates rubber gaskets — unlocking higher pressure and temperature capabilities. Each heat plate pair is laser welded for strength, chemical resistance, and leak-free operation over long cycles.
It’s ideal for systems where gasketed exchangers aren’t suitable — such as amine units, hydrocarbons, or sour service duties.
It’s ideal for systems where gasketed exchangers aren’t suitable — such as amine units, hydrocarbons, or sour service duties.
Compact strength with engineered flexibility
Inside a rigid rectangular frame, a high-density welded plate pack is supported by stainless or alloy-lined panels, baffles (detachable or fixed), and support columns that can be customized for layout or media.
From flow path configuration to plate material selection, each heat exchanger is engineered for your process — balancing heat transfer area, layout constraints, and operating pressure.
Efficient thermal exchange through thin plates
Hot fluids (Side A) and cold fluids (Side B) flow through alternating spiral channels, separated by thin, fully welded plates. This creates a large surface area in a compact space.
Thanks to this design, the LHEBloc Welded Plate and Frame Heat Exchanger achieves high heat transfer efficiency with a small footprint.
Built-in strengths for demanding conditions
High pressure resistance
The fully welded design withstands pressures up to 35 bar. Perfect for demanding gas, hydrocarbon, or utility systems.
Handles extreme temperatures
With no gaskets in the flow path, the LHEBloc can operate at temperatures up to 350 °C without risking seal failure.
Cost-effective by design
The compact layout reduces weight, footprint, and capital cost. And with no gaskets to replace, service is simpler and cheaper over time.
Design details & customization options
Each LHEBloc is configured to fit your thermal and mechanical requirements.
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Plate pack: Laser-welded pairs with end-to-end sealing.
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Frame: Rigid carbon steel body with customizable lining (e.g. stainless steel, titanium).
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Flow control: Optional welded or removable baffles in both channels.
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Mounting: Designed for easy installation and integration into your system.
Reliable performance, wherever it’s installed
Oil & Gas
- Gas dehydration heat recovery
- Amine system cooling, condensation, and reboiling
- Crude oil desalting and dehydration
- Vapor recovery condensation
Refining
- Condensers for FCCs, hydrocrackers, H₂S strippers
- Reboilers in alkylation and NGL plants
- Steam generation for process heating
- Product stream heating and pump-around cooling
- Heavy product heating (bitumen, VGO)
- Crude oil preheating
Hydrocarbon Process Industry
Heating, cooling, and reboiling in:
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Primaries: olefins, aromatics, aldehydes, acids, ethers, esters, ketones, and halogens
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Intermediates: acrolein, acrylic acid and acrylates, acrylonitrile, and adipic compounds
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Polymers: polyethylene, polypropylene, polystyrene, and related resins
Fertilizer Production
- Cooling of nitrogen gas streams
- CO₂ gas cooling during synthesis processes
- Heat recovery and re-boiling in ammonia stripping columns
HVAC, District Heating, Utilities
- Hot water production
- Steam network integration
- Waste heat recovery in utility loops