Nuclear Moisture Separator Reheaters Market Size, Share, Growth, and Industry Analysis, By Type (Horizontal MSR and Vertical MSR), By Application (PWR, PHWR, HTGR, FBR and BWR), Regional Forecast to 2034

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NUCLEAR MOISTURE SEPARATOR REHEATERS MARKET OVERVIEW

The global nuclear moisture separator reheaters market size was valued at USD 0.98 billion in 2025 and is expected to reach USD 1.603 billion by 2034, growing at a compound annual growth rate (CAGR) of about 5.63% from 2025 to 2033.

The United States nuclear moisture separator reheaters market size is projected at USD 0.319 Billion in 2025, the Europe nuclear moisture separator reheaters market size is projected at USD 0.258 Billion in 2025, and the China nuclear moisture separator reheaters market size is projected at USD 0.28 Billion in 2025.

The nuclear moisture separator reheaters market is a market that is driven by the increasing demand for nuclear power generation and the need for efficient and reliable equipment in order to meet stringent safety requirements.

Moisture separator reheaters (MSR) are used in nuclear power plant between the high pressure turbine outlet and the inlet of low pressure turbine.  These devices are utilized to remove moisture from the steam and reheat it before it enters the low pressure turbines. Moisture separator reheaters play a critical role in increasing the thermodynamic efficiency of nuclear power facilities and also protect the low pressure turbine blades from corrosion. The market shares of Horizontal MSR accounts more of the market, and the market share has not changed a lot. And, the market share Vertical MSR is much lesser than horizontal MSR. They are used in nuclear companies and most of the reactors are PWR.

KEY FINDINGS

COVID-19 IMPACT

Imposed Restrictions in the Economy Resulted in Decline in the Market

The COVID-19 pandemic has had an impact on the global economy, causing a strict lockdown and a halt to day-to-day activities in every industry. With the limits imposed by the government, the panic scenario has had a negative influence on many industries, including nuclear moisture separator reheater. COVID-19 had impacted the nuclear moisture separator reheaters market in several ways. For instance, disruptions in supply chains affected the production and distribution of these components. Additionally, some nuclear projects had been delayed due to health and safety concerns, which reduced immediate demand for MSRs. However, post-COVID, the nuclear moisture separator reheatersmarket is likely seeing a recovery. As economies rebound and restrictions ease, supply chains started becoming more stable, enabling manufacturers to source materials more easily. Many delayed nuclear projects started again, which increased the demand for MSRs. However, the financial impact of the pandemic is still a factor. As some projects have been cancelled or downsized due to budget constraints, which is impacting the market.

LATEST TRENDS

Higher Standards of Performance due to Digitalization and Smart Technology

The use of digital technologies for monitoring and maintenance of MSRs is essential and an emerging trend in nuclear moisture separator reheaters market share. This can help in predicting and preventing potential faults, as working with nuclear items is dangerous thereby improving the safety and efficiency of nuclear power plants. And also is environmental friendly in nature.

• Growing BWR Fleet: As of 31 December 2023, there were 92 boiling water reactors (BWRs) in operation globally—reactors that inherently employ moisture separator reheaters—representing 21 % of the 437 total operational nuclear power units worldwide, according to IAEA PRIS data

• Dominance of Water‑Cooled Designs: By mid‑2024, 96 % of the 442 operating reactors were water‑cooled systems (which include all MSR‑equipped plants), with a combined net installed capacity of 376 261 MWe, underscoring the centrality of moisture separation technology to 416 operational units—according to IAEA PRIS 

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NUCLEAR MOISTURE SEPARATOR REHEATERS MARKET SEGMENTATION

By Type

Based on type nuclear moisture separator reheaters market is classified as Horizontal MSR and Vertical MSR

By Application

Based on applicationtype nuclear moisture separator reheaters market is classified as PWR, PHWR, HTGR, FBR and BWR.

DRIVING FACTORS

High Demand for Clean Energy boost the Market Growth

As the world becomes more aware of climate change, and is striving to reduce carbon emission, there's a push towards cleaner, more sustainable energy sources. Nuclear energy is a powerful alternative, as it produces a large amount of electricity without emitting greenhouse gases. This global shift towards nuclear energy increases the number of nuclear power plants being built, and thus, the demand for components like moisture separator reheaters. These devices play a crucial role in the efficiency and safety of nuclear power plants, making them indispensable. Therefore, the growing demand for clean energy directly fuels the growth of the nuclear moisture separator reheaters market as well as the need for efficient and reliable equipment in order to meet stringent safety requirements.

• High Reliability: In 2023, nuclear plants achieved a global average capacity factor of 81.5 %, with BWR units—where MSRs are critical—consistently surpassing 85 %, demonstrating the effectiveness of moisture separator reheaters in ensuring steam dryness and turbine longevity—per World Nuclear Association, IAEA PRIS

• Fleet Expansion Pipeline: At the end of 2023, 62 reactors totalling 65 040 MWe were under construction worldwide, all of which will deploy water‑cooled reactor designs with moisture separator reheater systems

Technological Advancements Leading towards Efficient and Reliable Product Manufacturing

As technology improves, so does the efficiency, reliability, and safety of moisture separator reheaters. These advancements include better materials, design improvements, or innovative manufacturing processes. As a result, newer models can outperform older ones, leading nuclear power plants to upgrade their equipment. This continuous cycle of innovation and replacement helps drive the nuclear moisture separator reheaters market growth

RESTRAINING FACTORS

High initial investment and maintenance cost to restrain the market

A major restraining factor is the high initial investment and maintenance cost. These systems are complex and require skilled professionals for installation and maintenance, which can be expensive. Additionally, the slow growth rate of nuclear power plants in many regions due to environmental concerns and public opposition also hampers the market growth. Lastly, the emergence of alternative energy sources such as wind and solar power, which are more environmentally friendly and cost-effective, can also pose a challenge to this market.

• Aging Reactor Base: Of the 92 BWRs in service, 47 units (51 %) are over 35 years old as of 2023, resulting in extended outage periods—outage durations have stretched to 100–120 days for MSR refurbishments—per World Nuclear Association performance data 

• Limited Adoption in SMRs: Only 5 % of the 22 small modular reactor (SMR) designs under development as of July 2025 integrate moisture separator reheaters, constraining the market’s growth within the advanced reactor segment—according to World Nuclear Association

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NUCLEAR MOISTURE SEPARATOR REHEATERS MARKET REGIONAL INSIGHTS

Asia-Pacific Region to Dominate the Market with Extensive Utilization and Multiplying Manufacturers

In Asia-Pacific, countries like China and India are increasingly investing in nuclear power to meet their growing energy needs, which could drive demand for MSRs. In Europe, the Many countries are moving away from nuclear power in favor of renewable energy, which could limit the growth of the MSR market. In North America, the market is influenced by the US's policies on nuclear power and its efforts to modernize existing nuclear plants, which could potentially boost the demand for MSRs.

KEY INDUSTRY PLAYERS

Financial Players to Contribute Towards Expansion of Market

The nuclear moisture separator reheater market is extremely competitive and consists of various global and regional players.  Major players are involved in strategizing various plans such as mergers and acquisitions, partnerships, introduction of new and enhanced products, along with joint ventures. The report is an extensive research of a list of market players who contribute towards the expansion of the market. The information is a collusion of latest technological developments, trends, production lines mergers and acquisitions, market study and others. Other factors such as regional wise analysis and segment wise analysis are also considered to understand the market share, product growth, revenue growth and others during the forecasted period.

• Vallourec has an annual manufacturing capacity of 10 Modular Steam Reformer (MSR) units.

• Toshiba has successfully delivered 16 MSR units to boiling water reactors (BWRs) in Japan.

List of Top Nuclear Moisture Separator Reheaters Companies

• Vallourec
• Toshiba
• Babcock Power
• GE Energy
• Balcke-Durr(SPX)
• DFHM
• Alstom Power (GE)
• Harbin Boiler
• Shanghai Electric
• Peerless (CECO)

REPORT COVERAGE

The SWOT analysis and information on future developments are covered in the study. The research report includes a study of a number of factors that promote market growth. This section also covers the range of numerous market categories and applications that could potentially affect the market in the future. The specifics are based on current trends and historical turning points. The state of the market's components and its potential growth areas over the following years. The paper discusses market segmentation information, including subjective and quantitative research, as well as the impact of financial and strategy opinions. Additionally, the research disseminates data on national and regional assessments that take into account the dominant forces of supply and demand that are influencing market growth. The competitive environment, including market shares of significant competitors, is detailed in the report along with fresh research methodology and player strategies for the anticipated time.