NUCLEAR POWER PLANTS
NUCLEAR
POWER PLANTS
Nuclear power generation demands uncompromising reliability, safety, and thermal precision. Heat exchangers in this field must handle radioactive fluids, high pressures, and stringent regulatory standards, often with long service intervals and redundant safety systems.
Nuclear power generation demands uncompromising reliability, safety, and thermal precision. Heat exchangers in this field must handle radioactive fluids, high pressures, and stringent regulatory standards, often with long service intervals and redundant safety systems.
The main challenges in this sector
The main challenges in this sector
Radiation-resistant construction
Nuclear environments require materials capable of withstanding long-term exposure to radiation and chemically aggressive coolants. Both PCHEs and welded plate exchangers are available in high-grade alloys.
Extreme pressure and temperature tolerance
Primary and secondary circuits operate under severe mechanical and thermal stress.Â
Safety and regulatory compliance
Equipment must comply with nuclear certifications (ASME III, RCC-M, etc.), ensuring operational security.
Redundant cooling for core and auxiliary systems
Nuclear plants demand fail-safe thermal systems. Whether in reactor core cooling, decay heat removal, or auxiliary loops, PCHEs and welded units offer redundant, compact, and high-integrity solutions essential for continuous, secure operation.
Our involvement in the sector
Nexson provides custom-engineered PCHE and welded heat exchangers for nuclear applications ensuring compactness, resistance, and long-term stability in the most demanding environments.
Thermal safety and performance for the world’s most critical energy systems
Leak-proof, high-pressure operation
PCHEs, made through diffusion bonding, eliminate gaskets and weld seams in critical zones, making them ideal for high-pressure, radioactive, and high-temperature environments. Welded plate exchangers complement these by offering leak-free performance in auxiliary and balance-of-plant systems.
Corrosion-resistant materials for long service life
Constructed with Duplex, 316L, or nickel-based alloys, our heat exchangers withstand harsh coolant chemistries (e.g., borated water, ammonia, liquid sodium) and resist degradation from radiation.
Compact footprint for confined nuclear buildings
The compactness of PCHEs and welded exchangers enables high power density in constrained reactor buildings or containment areas, making them ideal for retrofit, modular, and SMR configurations.
Service-friendly and robust configurations
While PCHEs are near-maintenance-free due to their solid structure, our welded units offer modular construction for easier inspection and mechanical cleaning, maximizing operational lifespan.
Thermal safety and performance for the world’s most critical energy systems
Leak-proof, high-pressure operation
PCHEs, made through diffusion bonding, eliminate gaskets and weld seams in critical zones, making them ideal for high-pressure, radioactive, and high-temperature environments. Welded plate exchangers complement these by offering leak-free performance in auxiliary and balance-of-plant systems.
Corrosion-resistant materials for long service life
Constructed with Duplex, 316L, or nickel-based alloys, our heat exchangers withstand harsh coolant chemistries (e.g., borated water, ammonia, liquid sodium) and resist degradation from radiation.
Compact footprint for confined nuclear buildings
The compactness of PCHEs and welded exchangers enables high power density in constrained reactor buildings or containment areas, making them ideal for retrofit, modular, and SMR configurations.
Service-friendly and robust configurations
While PCHEs are near-maintenance-free due to their solid structure, our welded units offer modular construction for easier inspection and mechanical cleaning, maximizing operational lifespan.









