Applications

•  Pressurizer heaters for new-build NPPs (Nuclear Power Plants)
• PRZ heaters for NPP retrofit
• PRZ heaters for test loops
• High watt bundles to simulate transience in test loops

 Key parameters:

•     Excellent heat conduction
•     High watt density up to 40W/cm²
•     Various pressure and heat resistant connector designs
•     More solid construction than cartridge heaters
•     Outer Diameter from 17 mm to 31.7 mm
•     Length from 0.5 up to 12 meters
•     Connectors up to 260°C, pressure tested up to 260 bars

  Product features:

•  Unique proprietary manufacturing process for heating solutions
• 30 years’ operational experience, more than 10,000 PRZ heaters supplied
• Failure rate 3 times lower than conventional technologies
• Double barrier system to reduce contamination risk
• Proprietary solutions to prevent IGSCC  (Stress Corrosion Cracking)
• Available for any pressurizer dimensions for vertical or horizontal mounting
•  In-depth knowledge of design using FEA simulations to determine and confirm thermal, electrical and mechanical construction.
•  Designed and manufactured according major construction standards (ASME, KTA or RCC-M)
• 1E qualification possible. New configurations qualified by similarity or testing.

Applications

•  Material characterization of nuclear reactor fuel rods
• Experiments to reproduce core coolant circulation in steady state, transient and accident conditions
• Simulation of various fuel designs

 Key parameters:

•  Precise mechanical construction allowing low internal temperature gradient
•  Electrically isolated from the coolant
• Outer diameters from 4 mm up to 22 mm.
• Watt density up to 220 W/cm². Outer sheath stainless steel and Inconel.
• Hot section length: from 100 mm up to 3000 mm

  Product features :

•  Unique proprietary manufacturing process
•  Linear or cosine heat profile
•  Proprietary connector designed to withstand voltage, current and temperature
• Thermocouples can be embedded

Applications

•  Trace heating for pipes, tanks, plates for fusion and fission reactors.
• High density heating collar
• Boron tank heating solutions

Key parameters:

•  Outer sheath made of Inconel or stainless steel
• Waterproof & fireproof
• High operating temperatures permitting high wattage
• Non-ageing of raw material under flux
• great mechanical strength
• Small overall diameter
• Tight bending radius (down to 3 times outer diameter)
• Competitive installation cost
• Radiation resistant
• Earth continuity along outer sheath
• Resistance to corrosion optimized by selecting grade of stainless steel
• No intermediate transition between hot section and cold ends within the same outer sheath (allowing maximum chemical / thermal resistance.)
• High insulation resistance allowing low leakage current

  Product features :

• Several connector types available to suit all working conditions
• All configurations of line resistance, outer diameter and length
• Several designs of cold / hot transition from low to very high watt density
• Can be supplied with thermocouple

Applications

•  Special ovens made on demand
• Material ageing experiments
• Heat treatment

 Key parameters:

• From low temperatures up to 1400°C
• From a few centimeters up to 1 cubic meter
• Flexible heating cable offering small dimensions and easy routing
• No weld in the hot / cold transition offering best reliability
• High heat flux up to 20 W/cm². High operating temperature
• Can incorporate instrumentation such as RTD or thermocouple

Product features:

• Completely mechanical construction
• Heater integrated to the assembly allowing thermal optimization
• Enhanced temperature profile

Applications

 Connectors capable of ensuring long term tightness. For power, instrumentation & control solutions in high radiation and/or high temperature environments.

Key parameters:

• Different solutions available: connectors designed dependent on normal operating conditions and accident condition severity.
• Can withstand radiation, pressure and temperature of a design Basis Accident
• Some designs exclude organic compound material

Product features:

•  State of the art ceramic seals. Qualified resin compound if permitted.
• LOCA & Post LOCA resistant, severe accident resistant
• Small dimension, single or multiple contacts
• Contact pins in nickel or thermocouple material