Plate & shell heat exchangers
Plate & shell heat exchangers
Plate & shell heat exchangers
Nexson Group’s Plate & Shell heat exchanger, part of the GREEN P&S range, represents the technological evolution of hybrid thermal systems. This fully welded, gasket-free solution combines the exceptional thermal efficiency of circular plates with the mechanical strength of a cylindrical shell. It is available in three variations: Type O (Openable), Type W (Fully Welded), and Type K (Kettle Reboiler).
Designed for the most demanding operating conditions, the GREEN P&S withstands pressures up to 120 bar and temperatures ranging from -196°C to 500°C. Thanks to its reduced footprint compared to conventional shell & tube exchangers, this equipment is the preferred choice for condensation, evaporation, and waste heat recovery.
As a French expert in welded heat exchangers, Nexson utilizes high-grade materials (316L Stainless Steel, Duplex, Titanium, Nickel alloys) to ensure durability and energy efficiency for decarbonization processes in the chemical, energy, and heavy industry sectors, and beyond.
Easy to inspection or cleaning
Easy to inspection or cleaning
GREEN P&S - TYPE O
Nexson GREEN P&S Type O – Plate & Shell Openable provides enhanced flexibility by enabling the plate pack to be withdrawn from the shell for inspection or mechanical cleaning. This is made possible by its flanged and bolted shell design. The plate pack allows for swift removal and refitting, minimizing process downtime.
The welded plate core is filled and fixed in the circular shell, and there are no sealing gaskets between the plates. It can be applied in corrosive, high-temperature, and high-pressure environments.
GREEN P&S - TYPE O
Nexson GREEN P&S Type O – Plate & Shell Openable provides enhanced flexibility by enabling the plate pack to be withdrawn from the shell for inspection or mechanical cleaning. This is made possible by its flanged and bolted shell design. The plate pack allows for swift removal and refitting, minimizing process downtime.
The welded plate core is filled and fixed in the circular shell, and there are no sealing gaskets between the plates. It can be applied in corrosive, high-temperature, and high-pressure environments.
Plates range
GREEN P&S - TYPE W
The core component of Nexson GREEN P&S Type W – Plate & Shell Fully Welded is a fully welded plate pack enclosed within a robust shell, eliminating the need for gaskets. Both the plate pack and the shell are entirely welded, yet they remain separate, allowing for expansion and contraction in response to temperature changes.
The circular plate design ensures uniform stress distribution, enhancing durability and performance.
GREEN P&S - TYPE W
The core component of Nexson GREEN P&S Type W – Plate & Shell Fully Welded is a fully welded plate pack enclosed within a robust shell, eliminating the need for gaskets. Both the plate pack and the shell are entirely welded, yet they remain separate, allowing for expansion and contraction in response to temperature changes.
The circular plate design ensures uniform stress distribution, enhancing durability and performance.
Plates range
Eliminating the need for gaskets
Eliminating the need for gaskets
Durable, gasket-free construction
Durable, gasket-free construction
GREEN P&S - TYPE K
Nexson GREEN P&S™ Type K is a compact, fully welded plate & shell kettle reboiler designed for high-efficiency evaporation in demanding applications. Operating as a flooded evaporator, it maintains the refrigerant in a submerged state for optimal heat transfer.
Ideal for refrigeration, heat pump, and ORC cycles, it evaporates media like ammonia using a hot stream in counter-current flow. The integrated manifold ensures effective phase separation, while minimizing shell size, wall thickness, and fluid volume — resulting in reduced operational costs.
GREEN P&S - TYPE K
Nexson GREEN P&S™ Type K is a compact, fully welded plate & shell kettle reboiler designed for high-efficiency evaporation in demanding applications. Operating as a flooded evaporator, it maintains the refrigerant in a submerged state for optimal heat transfer.
Ideal for refrigeration, heat pump, and ORC cycles, it evaporates media like ammonia using a hot stream in counter-current flow. The integrated manifold ensures effective phase separation, while minimizing shell size, wall thickness, and fluid volume — resulting in reduced operational costs.
Plates range
Main features
Main features
Compact structure
Efficient heat exchange
Safe and reliable
Low maintenance
Materials available
Materials available
Plates materials
• SS304, 316L, 904L, 254SMO
• Alloy C-22, C-276
• Titanium gr.1, gr.11
• Nickel 201
• Others on request
Shells materials
• Q345R, 16MnDR, SA516 Gr.70
• CS+ 304/316L/254SMO/C-276
• SS304, 316L, 904L, 254SMO
• Others on request
Industries
Industries
All industries where GREEN P&S is available
Heat exchangers maintenance and spare parts
Heat exchangers maintenance and spare parts
Find all the information you need about maintenance and spare parts for our heat exchangers. We’re committed to providing you with the best possible service and keeping our products as efficient as possible.
GREEN P&S
GREEN P&S
To find out more about our heat exchangers, download our brochures!
