Fuji Electric France distinguishes itself by producing pressure transmitters with remarkable precision, meticulously crafted to meet the stringent criteria of the nuclear industry.
Fuji Electric's mission is to offer nuclear operators, EPCs and subcontractors innovative, high-performance and reliable products with high precision, long-term stability and short delivery times. Pressure transmitters innovative, high-performance, reliable products with high precision, long-term stability and rapid delivery times.
We have supplied differential, absolute and relative pressure transmitters to nuclear power plants and nuclear research centers all over the world.
You may be wondering why to use nuclear qualified pressure transmitters.
One of the right questions to ask is without doubt: Safety?
What makes them so special?
Let's take a look at the key aspects right now.
Fuji Electric sensors are designed and manufactured for accurate and reliable measurement in nuclear facilities.
They are qualified for installation in systems with safety-related functions, whose failure could have serious industrial or radiological consequences.
Fuji Electric's nuclear pressure transmitters have been installed for several decades throughout EDF's French nuclear fleet and in many other power plants around the world, as well as in the latest EPRs commissioned or under construction (Taishan, Flamanville, Olkiluoto and Hinkley Point).
Fuji Electric France's total commitment to nuclear safety includes the implementation of a safety culture approach. It's part of the company's DNA.
The RCC-E provides rules for the design and construction of electrical and control assemblies for pressurised water reactors.
It defines the technical rules and requirements for:
The RCC-E is written by the AFCEN (French Association for Design Rules): https://www.afcen.com/fr/rcc-e/187-rcc-e.html
It is developed in partnership with industrialists, engineers, manufacturers, inspection bodies and operators, it represents a collection of good practices in compliance with the requirements of the IAEA. The AFCEN, counts among its members companies and institutes such as EDF, Framatome, CEA, Bureau Veritas, etc...
Fuji Electric pressure transmitters are qualified according to the RCC-E
Choosing a Fuji Electric "nuclear qualified" transmitter will ensure that your project requirements are met in terms of:
A nuclear pressure transmitter is built using materials from rigorously selected suppliers, ensuring the high level of quality, traceability and qualification required. Discover 6 essential criteria for ensuring safety with a nuclear pressure transmitter .
Fuji Electric ensures strict quality control during the manufacturing process, including continuous training and skills management of personnel, traceability of supplies and third-party suppliers, control of manufacturing processes, documentation, and customer technical support.
Fuji Electric's nuclear pressure transmitters have been qualified to perform and maintain their qualification level, i.e. maintain their performance level and operability in the event of a severe accident, for a period of 40 years, some even 60 years.
Electrical connections are also a key point. For example, we use qualified K2 sockets with quick disconnection (1/4 turn) from partners such as SAIB or SOURIAU, themselves historical players in the French nuclear industry.
All the seals and sealing products used have PMUC certification.
Depending on the type of transmitter and its destination, e.g. a restricted radiological area, we offer EPDM seals for their high tolerance to radiation.
The different types of electronics are specifically designed to ensure performance and reliability.
The "smart" digital models have undergone rigorous robustness tests, while the "analog" models, without any programmable digital components, guarantee performance and reliability in the most demanding environments (accidental profiles, irradiation, earthquake & thermodynamic shocks).
In addition to the classic connections via process flanges, there are also versions with remote seals diaphragm, which are distinguished by the wide range of connections available:
They are also distinguished by their choice of materials, depending on the nature of the process fluid: 316L stainless steel, Hastelloy C (for seawater applications), membrane with gold+ceramic coating (pressure transmitter for hydrogen applications), etc.
Fuji Electric's range of nuclear-qualified pressure transmitters can be used for a wide range of applications:
“K3-AD category” classified or no classified
Digital or analog remote seal pressure transmitter
gauge or differential pressure
"Category K3-A, K3-AD "classified or unclassified
Pressure transmitter digital or analog (absolute, relative or differential pressure)
The entire Fuji Electric range can also be offered with diaphragm seals.
The selection is made according to :
| Ambient conditions? | No radiation, or Presence of ambient and/or accidental radiation up to 50 kGy |
| Need for qualification to accidental conditions? | NC TAS K3 K3ad |
| Seismic requirements? | Operability Integrity Design spectrum |
| Service conditions of the process? | Temperature Pressure Nature of the fluid and risk of corrosion |
| We can thus distinguish two main families of apparatus allowing to to meet the majority of applications | Smart" digital transmitter Transmitter with 100% analog electronics and no programmable components (CEP or ANFL) |
The applications are many and varied.
Fuji Electric pressure transmitters are used in almost all areas of a nuclear power plant, outside the containment of the BR. They are used on the secondary circuit, the cooling circuit and in the engine room housing the steam turbine. They are also installed on the auxiliary and backup circuits:
The company has delivered more than 6 000 units including Gauge, Differential, Absolute pressure transmitters to EDF, AREVA, ALSTOM GE for French powers plant, EPR in France, Finland, China and PWR in South Africa or NPCIL in India.
