Welded block heat exchanger

NOVUSBLOC®

For demanding industrial duties.

Proven expertise

For the most demanding processes

Tranter is a driving factor in developing welded block heat exchanger technology for demanding process applications where conventional heat exchanger designs reach their limits. Combining the thermal efficiency of plate technology with a robust fully welded construction, Tranters welded block heat exchanger, NovusBloc, is engineered for applications requiring high heat recovery, compact footprint, and dependable long-term operation.

For demanding process conditions

Introducing Tranter's NovusBloc

Tranter's welded block heat exchanger, the NovusBloc, transfers heat through a compact pack of corrugated plates welded together to form separate channels for each medium. Removable baffles direct flow through multiple passes, allowing the exchanger to be configured for a wide variety of thermal duties. The result is high heat transfer performance in a compact and lightweight installation. The unit is available in both vertical and horizontal configurations to accommodate different plant layouts.

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Designed for efficiency, durability and serviceability

Corrugated plates create turbulent flow for efficient heat transfer, while a reinforced design helps accommodate demanding operating conditions. Removable panels and baffles provide direct access to heat transfer surfaces for inspection and mechanical cleaning, supporting simpler maintenance and long-term performance.

  • Space-saving design – Compact footprint and low installed weight.

  • Efficient heat transfer – Corrugated plates maximize thermal performance.

  • Flexible flow arrangements – Multi-pass designs adapt to process requirements.

  • Installation versatility – Available in vertical and horizontal configurations.

  • High-duty capability – Up to 865 m² of heat transfer area.

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Extreme conditions, zero compromise

Supermax is engineered to operate across a broad spectrum of operating conditions, supported by recognized design codes and a range of metallic materials. Exact configuration depends on application requirements and selected design type.

Specification highlights

  • Design temperature range: −50°C to +350°C

  • Design pressure: From full vacuum up to 38 bar

  • Design codes and directives: ASME, ASME U, API 810, PED, NB/T 47004/2, NR13, ABS, LR and DNV

  • Plate materials: AISI 316L, 254 SMO, Hastelloy C-276, Titanium Grade 1 and Grade 11 (others available on request) 

How it works

Inside the welded block heat exchanger

Plate channels

Separate channels keep the media apart

Pairs of corrugated plates are welded together to create enclosed channels. Hot and cold media flow through alternating channels, remaining completely separated while heat is transferred through the plate material.

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Heat transfer

Corrugated plates create turbulent flow

The corrugated plate geometry disturbs the flow, creating turbulence inside each channel. This turbulence increases contact between the fluid and the heat transfer surface, supporting efficient thermal performance and close temperature approaches.

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Flow distribution

Baffles direct the flow through the exchanger

Removable baffles guide each medium back and forth through the welded channels. This creates the desired flow pattern and helps distribute media throughout the heat transfer core. The arrangement can be optimized according to process requirements.

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Flow arrangement

Multi-pass flow improves thermal efficiency

The welded block heat exchanger uses a multi-pass cross-flow arrangement that increases the effective thermal path through the exchanger. This configuration supports efficient heat recovery and can achieve temperature-cross duties within a single unit.

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Maintenance access

Direct access simplifies inspection and cleaning

Removable panels and baffles provide access to the plate pack for visual inspection and mechanical cleaning. The ability to access heat transfer surfaces from both sides makes the welded block heat exchanger particularly suited for applications with elevated fouling potential or demanding maintenance requirements.

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Robust and flexible by design.

Made for turbulent flow, weldability and cleanability. Available in exotic materials .

Enhanced platepack robustness

Designed for durability and absorption of thermal expansion.

Reinforced Lining

Built to avoid material stress, increase robustness and prolong lifetime.

Our recommendations

Where the welded block heat exchangers excel

Welded plate heat exchangers are chosen for demanding duties where pressure, temperature, and reliability are critical.

Energy transition

Energy transition projects rely on efficient heat recovery and reliable operation to maximize process performance and reduce energy losses. Tranter welded block heat exchangers combine high thermal efficiency with a gasket-free welded design, making them well suited for hydrogen, carbon capture, renewable fuels, and other emerging energy applications. Their compact footprint and robust construction help operators improve energy utilization while supporting long-term sustainability goals.

Oil & Gas

Oil and gas facilities require compact, reliable heat exchangers capable of handling challenging process streams while minimizing maintenance requirements. NovusBloc offers a compact footprint and reduced weight compared to many traditional shell-and-tube alternatives, making installation easier on offshore platforms, FPSOs, and space-constrained processing units. The reinforced lining, robust plate pack design, and resistance to fouling contribute to long service life and lower lifecycle costs, while maintaining the thermal efficiency needed for energy recovery and process optimization.

Petrochemicals & Chemicals

Chemical and petrochemical processes frequently involve corrosive media, demanding operating conditions, and strict requirements for equipment reliability. NovusBloc is available in a wide range of corrosion-resistant materials, including SMO254, Hastelloy C-276, titanium, and AISI 316L, while its all-welded plate pack eliminates concerns related to gasket compatibility. Combined with operating temperatures from -50°C to 350°C and pressures up to 38 bar, it provides a robust solution for heaters, coolers, condensers, evaporators, and heat recovery duties across chemical processing facilities.

Power generation

Power producers continuously seek opportunities to recover waste heat and improve plant efficiency. NovusBloc is particularly well suited for heat recovery applications, condensers, heaters, and coolers where high thermal effectiveness directly impacts plant performance. Its ability to achieve temperature cross and maintain high heat transfer rates in a compact design enables more effective utilization of available energy, supporting efficiency improvements in conventional power plants as well as emerging applications such as hydrogen and carbon capture systems.

Pulp & Paper

Pulp and paper facilities handle challenging process streams where reliability and heat recovery are critical to operational efficiency. Tranter welded block heat exchangers are designed to deliver high thermal performance while handling demanding fluids and process conditions. Their accessible design and resistance to fouling make them an effective solution for process cooling, heating, and energy recovery duties throughout the mill.

Refinery

Refinery processes require heat exchangers capable of handling aggressive media, high temperatures, and continuous operation. Tranter welded block heat exchangers combine the thermal efficiency of plate technology with a robust welded construction, making them well suited for process heating, cooling, condensation, and heat recovery applications. Their compact design helps maximize thermal performance while minimizing maintenance requirements.

Renewable fuels & Chemicals

Renewable fuels and chemical processing applications demand reliable heat transfer, corrosion resistance, and operational flexibility. Tranter welded block heat exchangers provide high thermal efficiency and a wide range of material options to accommodate demanding process conditions. Their gasket-free construction supports long service life and dependable performance in heating, cooling, and heat recovery duties.

Steel production

Steel manufacturing involves aggressive cooling and heat recovery duties, large thermal loads, and demanding operating environments where reliability is critical. NovusBloc combines durable construction, advanced cleanability, and materials engineered for corrosion resistance with a reinforced plate pack capable of accommodating thermal expansion. This makes it well suited for process cooling, energy recovery, and utility services throughout steel plants, where minimizing downtime and maintaining consistent thermal performance are essential to production efficiency.

Semiconductors

Semiconductor manufacturing depends on precise temperature control and highly reliable process equipment. Tranter welded block heat exchangers deliver efficient heat transfer and consistent thermal performance across demanding cooling and process applications. Their compact design, robust construction, and ability to handle specialized process requirements make them a dependable choice for semiconductor production facilities.

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Our service recommendations for your application

Find service solutions that fits the welded block heat exchanger in your industry.

Energy transition

Enabling cleaner energy through smarter heat recovery

Efficient thermal solutions for carbon capture, green hydrogen, energy storage, and Power-to-X applications where reliability, efficiency, and compact design are critical.

Oil & Gas

Reliable heat transfer from wellhead to refinery

Compact and efficient solutions designed for demanding upstream, downstream, and offshore operations.

Petrochemicals & Chemicals

Engineered for aggressive media and continuous production

Corrosion-resistant designs that improve heat recovery while supporting stable plant operation.

Power generation

Delivering efficiency from every megawatt produced

Reliable thermal performance for conventional, nuclear, and renewable power generation systems.

Pulp & Paper

Recovering energy throughout the mill

Improve process efficiency and reduce energy consumption across pulp, paper, and utility systems.

Refinery

Maximizing heat recovery where margins matter most

Increase efficiency, reduce energy costs, and optimize performance throughout refinery operations.

Renewable fuels & Chemicals

Improving efficiency in next-generation fuel production

Supporting sustainable fuels and chemicals with optimized heat recovery and process performance.

Semiconductors

Precision cooling for precision manufacturing

Stable thermal control for sensitive semiconductor fabrication and cleanroom environments.

Steel production

Withstanding the heat of modern steelmaking

Robust thermal solutions designed for harsh environments and energy-intensive processes.

Reach out

Want to know more?

Talk to our people and let us guide you to the right solution for your application.

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Guides

Download our related guides and literature

Energy, Process industries

Tranter heat exchangers in green hydrogen production

Tranter’s compact plate heat exchangers are used in various energy intense industrial applications. Let’s take a look at how plate heat exchangers can be used in the production of green hydrogen and in the hydrogen value chain. 

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Resource center

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Welded block heat exchanger - Easy maintenance

The NovusBloc® is fully accessible for mechanical cleaning and visual inspection making it our customers’ first choice of heat exchanger for applications with high fouling tendency and high operating temperatures.  
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Innovation and product development

Driven by sustainable and efficient design innovations, our Research and Development team focuses on enhancing thermal-hydraulic performance, pressure capabilities, and materials science to advance heat exchanger technology.
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Tranter Fullserv® – Full support for every brand

Our comprehensive understanding of heat exchangers goes beyond just maintenance and usage. We offer tailored recommendations and innovative solutions to optimize your system's performance, reduce energy consumption, and extend the lifespan of your equipment. Our goal is to not only enhance your operational efficiency but also to ensure the long-term health and reliability of your heat exchangers. Trust Tranter to provide expert insights that keep your systems running smoothly and cost-effectively.

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