In the nuclear industry, the reliability and accuracy of pressure measurements are essential requirements for the safety, performance, and compliance of facilities. Fuj...
In the nuclear industry, the reliability and accuracy of pressure measurements are essential requirements for the safety, performance, and compliance of facilities. Fuji Electric France offers a range of pressure transmitters for the nuclear sector, designed to meet the strict criteria of operators, engineering firms, and subcontractors.These transmitters are designed to ensure long-term stability, high accuracy, and proven robustness, even in demanding environments.The solutions cover a variety of gauge pressure, absolute, and differential measurements and are suitable for critical applications, from nuclear power plants to specialized research centers.
The pressure transmitter industrial ATEX SIL 2 SIL 3 for liquid, gas and steam. Continuously measures pressure, flow, level and density. Available in ATEX.
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Buying guide for nuclear pressure transmitters
Pressure transmitter the nuclear industry are essential equipment for ensuring accurate and reliable measurements in nuclear power plants. Fuji Electric France manufactures high-accuracy nuclear-qualified pressure transmitters for safety-critical applications. Designed for the nuclear pressure instrumentation industry, our transmitters comply with strict traceability, seismic and environmental requirements and support long-term plant operation.
Qualified pressure transmitters for nuclear applications
Reliable, innovative, and high-performance nuclear pressure transmitters
For over 20 years, Fuji Electric France has been supporting nuclear plant operators, EPC contractors, and subcontractors with nuclear-qualified pressure transmitters that combine high accuracy, long-term stability, and reliable delivery.
We supply gauge, differential and absolute pressure transmitters for nuclear power plants and research facilities worldwide.
Brochure
Fuji Electric nuclear pressure transmitters
Download the brochure to learn how Fuji Electric’s nuclear pressure transmitters contribute to safety, accuracy, and long-term stability in demanding nuclear applications.
You may be wondering why nuclear-qualified pressure transmitters are used in these environments.
One of the key questions to ask is undoubtedly: Safety?
What makes them so special?
Below, we outline the key points.
What is a nuclear pressure transmitter?
Fuji Electric pressure sensors are designed and manufactured to ensure accurate and reliable measurement in nuclear facilities.
They are qualified for installations 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 across EDF’s entire French nuclear fleet, as well as in numerous power plants around the world, including the latest EPRs that have come online (Taishan, Flamanville, Olkiluoto) and those currently under construction (Hinkley Point C).
Fuji Electric France’s total commitment to nuclear safety includes the implementation of a safety culture approach. It is part of the company’s DNA.
Nuclear qualifications: Are you familiar with the IEEE, RCC-E K3, K3ad,KTA ,IEC standards?
RCC-E sets out the design and construction rules for electrical and instrumentation systems used in pressurized water reactors.
It defines requirements for safety-classified equipment, plant availability-related equiment and project-specific quality assurance.
• Qualification of equipment subject to safety classification (IPS-1E / F1A / NC) and equipment critical to plant availability (IPD), • specific quality assurance requirements supplementing ISO 9001
RCC-E is issued by AFCEN (French Association for the Design, Construction, and Operational Monitoring of Nuclear Power Plant Equipment).
It is developed in partnership with manufacturers, engineering firms, government agencies, operators, and major industry players, and reflects a set of best practices aligned with IAEA requirements. AFCEN members include EDF, Framatome, the CEA, Bureau Veritas, and other leading organizations.
Understanding the Different Categories of Nuclear Qualifications
Qualification for normal ambient conditions in accordance with RCC-E (unclassified safety category: IPS-NC)
Qualification of instruments installed in safety-classified functions for accident conditions: These qualification procedures (RCC-E Volume B) demonstrate the capability of our K3 and K3ad instruments to operate under specific environmental and accident conditions.
Why choose a Fuji Electric nuclear-qualified pressure transmitter?
Selecting a Fuji Electric nuclear-qualified pressure transmitter ensures compliance with project requirements regarding safety classification, environmental qualification, seismic resistance, ability to operate under accident conditions, manufacturing traceability, and documentation deliverables.
When you choose a Fuji Electric nuclear-qualified transmitter, you can address project’s requirements in termes of:
Safety classifications
RCC-E qualifications: NC, TAS, K3 or K3ad
Environment family & accidental thermodynamic profile
I&C safety criteria
Integrity or operability under seismic loads in accident conditions
Manufacturing traceability
A quality management system certified to ISO 9001, QN100, QN200, QN300, and ISO 19443 helps ensure product compliance and meets project documentation requirements.
Guarantee that all documentation deliverables will be provided in accordance with datasheet .
Adherence to project schedule through rigorous management and monitoring of a dedicated nuclear project team.
safety
Qualifications
Traceability
compliance
close monitoring
Made in France
6 essential features of a pressure transmitter for nuclear applications:
Quality assurance for nuclear-qualified pressure transmitters
Fuji Electric implements strict quality control throughout the manufacturing process, including staff training and certification, supply chain traceability, manufacturing process control, document management, and technical customer support.
Our quality management system, certified to ISO 9001, QN100, QN200, QN300, and ISO 19443, meets the product compliance and project documentation requirements for nuclear applications.
Service life of nuclear-qualified pressure transmitters
Fuji Electric's nuclear pressure transmitters are qualified to maintain their performance and operability over the long term, even under severe accident conditions. Depending on the model and scope of qualification, the service life can reach 40 years, and up to 60 years for certain versions.
Nuclear-qualified electrical connectors
Electrical connections are critical to the transmitter’s reliability. Fuji Electric uses K2-certified quick-disconnect quarter-turn connectors supplied by long-standing partners such as SAIB and SOURIAU, two well-established players in the French nuclear industry.
Nuclear-grade gaskets and seals
All of our seals and gaskets are PMUC-certified. Depending on the type of transmitter and the installation environment—including areas with high radiation exposure—Fuji Electric can provide EPDM seals selected for their excellent resistance to radiation.
Smart electronics or analog electronics: Which option is right for your nuclear application?
Fuji Electric offers a range of transmitter electronics designed to meet the requirements of nuclear applications, qualification criteria, and operating conditions.
Smart digital nuclear pressure transmitters are designed to be highly robust and have undergone rigorous qualification testing.
Analog nuclear-grade pressure transmitters contain no programmable electronic components and are suitable for highly demanding environments, including accident conditions, radiation, seismic stresses, and thermal shocks.
Process connection options for nuclear pressure transmitters
In addition to standard flanged process connections, Fuji Electric also offers diaphragm seal versions with several connection options, including:
EN or ANSI flange adapters
Assembly using 3/8-inch OD weld-on tubing
Flushing rings
The choice of materials can also be tailored to process conditions, with options such as 316L stainless steel and Hastelloy C for seawater applications, as well as gold- or ceramic-coated diaphragms for demanding fluids and operating environments such as hydrogen (pressure transmitter hydrogen applications), etc.
How do you choose a nuclear pressure transmitter?
Fuji Electric's line of nuclear-qualified pressure transmitters covers a wide range of nuclear applications, including:
K3ad safety-qualified nuclear pressure transmitter or unclassified
nuclear pressure transmitter with diaphragm seal
digital or analog version (gauge pressure differential pressure)
K3-A version, K3ad (security-qualified or unclassified)
digital or analog nuclear pressure transmitter (absolute, gauge, or differential pressure)
Temperature range Pressure range Process fluid type: gas, liquid, or steam, including corrosion constraints
Preferred Electronics
Certified smart digital nuclear transmitter Certified analog nuclear transmitter with 100% analog electronics and no programmable electronic components (CEP or DDLF)
Where are pressure transmitters located in a nuclear power plant?
The applications are numerous and varied
Pressure transmitters play a vital role in a wide range of nuclear applications.
Fuji Electric pressure transmitters are installed throughout the nuclear power plant, including in the containment areas of the reactor building. They are used in the secondary loop, the cooling systems, and in the turbine hall housing the steam turbine. They are also installed in auxiliary and emergency systems, where accurate and reliable pressure measurement is essential to ensure safety, performance, and long-term operation.
RCV = chemical and volume control system (CVCS)
RIS = safety injection system (SIS)
ASG = emergency feedwater system (EFWS)
RRI = component cooling water system (CCWS)
SEC = essential service water system (ESWS)
PTR = fuel pool cooling and treatment system (FPCTS)
Ventilation (CVC)= HVAC systems
Illustration of the various circuits in a nuclear power plant where pressure transmitters to monitor processes.
Customer references for Fuji Electric nuclear pressure transmitters
As a French manufacturer of nuclear-qualified pressure transmitters and a supplier of nuclear instrumentation, Fuji Electric has delivered more than 10,000 units worldwide, including gauge, differential, and absolute pressure transmitters.
Its installed base includes major nuclear operators and contractors such as EDF, AREVA, FRAMATOME, and ALSTOM GE ARABELLE SOLUTIONS, as well as CGN, with applications in nuclear power plants in France, on EPR projects in France, Finland, China, and the United Kingdom, on PWR projects in South Africa, and on VVER projects for NPCIL in India.
Major players in the nuclear and energy sectors that use pressure transmitters Electric pressure transmitters in their facilities.
FAQ - Pressure transmitter
What is a pressure transmitter ?
This sensor has demonstrated, through standardized tests (RCC-E, IEEE 323), its ability to perform its measurement function under both normal and accident conditions in a nuclear power plant.
What is the difference between RCC-E and IEEE 323?
RCC-E is the French standard used by EDF for PWR reactors. IEEE 323 is the equivalent U.S. standard, used internationally. Both define the environmental qualification requirements for nuclear electrical equipment.
Which manufacturers produce qualified pressure transmitters ?
The leading manufacturers are Fuji Electric and Emerson (Rosemount). Each offers lines of pressure transmitters RCC-E or IEEE 323 standards for nuclear power plants.
Can a pressure transmitter be used in a nuclear power plant?
No. Only a sensor that has undergone a documented nuclear qualification may be incorporated into a safety-classified measurement system.
What is the difference between an pressure transmitter and a smart sensor in the nuclear industry?
An analog sensor, which lacks programmable digital components, offers better resistance to radiation and reduces cybersecurity risks. A smart sensor incorporates advanced features but requires additional robustness testing for safety-critical applications.
What standard applies to pressure transmitters in France?
In France, pressure transmitters classified as safety-critical must be qualified in accordance with the RCC-E standard and meet the requirements of the ASNR. ISO 19443 certification also governs the quality management system for nuclear suppliers.
What is a safety function for nuclear a pressure transmitter ?
A safety function refers to a pressure transmitter ability pressure transmitter provide a reliable measurement that triggers a safety action in the event of an accident at a nuclear power plant.
Ensure reliable pressure measurement in your nuclear facilities with our specially designed transmitters
Reliability, precision, and safety: Fuji Electric’s commitment to safer nuclear technology.
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