Nuclear New Build

Nuclear Containment Spray Pump - CUP-VS1

A containment spray pump plays a crucial role in minimizing radioactive material leakage from the containment vessel during emergency situations, such as a loss-of-coolant accident. At the time of such accident the pump sprays boric acid water into the vessel and eliminate contamination of the fissionable material.

The CUP-VS1 Containment Spray Pump reduces radioactive material leakage during emergencies, such as a loss-of-coolant accident. It sprays boric acid water to suppress contamination and maintain safety. The vertical turbine pump adheres to API 610 and API 682 standards, offering high reliability, low NPSH capabilities, and various material options for different fluids. Its design eliminates the need for a suction barrel, simplifying maintenance and ensuring adaptability to diverse nuclear cooling applications. With capacities up to 31,000 USgpm and temperatures up to 402°F, it provides robust performance for containment systems in nuclear facilities.

Nuclear Safety Injection Pump

A nuclear safety injection pump is an essential part of a nuclear reactor's Emergency Core Cooling System (ECCS). Its main role is to deliver coolant to the reactor core during emergencies, such as a loss-of-coolant accident (LOCA). This process is crucial for controlling the core's temperature and preventing it from overheating, which could otherwise result in a meltdown.

Essential to the Emergency Core Cooling System, the Safety Injection Pump ensures coolant delivery during emergencies, such as a loss-of-coolant accident. It prevents overheating and potential reactor core meltdowns by maintaining safe temperature levels. Available in vertical and horizontal multistage configurations, these pumps feature low NPSH capabilities and versatile hydraulic options to meet operational needs. Their durability, compliance with nuclear safety standards, and ability to handle demanding conditions make them a critical asset for nuclear plant safety. These pumps reliably support accident mitigation strategies, safeguarding both reactor integrity and personnel during critical emergency scenarios.

CUP-CW - Single / two stage vertical bowl / turbine pump

Cooling water pump (CUP-CW) is a vertical mixed flow bowl type, single stage.....

CUP-CW Cooling Water Pumps handle large water volumes, vital for reactor cooling. Adaptable to fresh or seawater applications, their modular design accommodates various intake and discharge configurations. Available with close-coupled or long-coupled motors, these pumps offer operational flexibility while maintaining efficiency. With capacities up to 176,000 USgpm and temperatures up to 180°F, they meet diverse cooling needs. Durable construction and advanced materials ensure performance in demanding environments, supporting nuclear power plant safety. CUP-CW pumps are crucial for effective heat dissipation and operational stability in nuclear cooling systems.

Nuclear Residual Heat Removal Pump

A nuclear residual heat removal pump is a vital component in nuclear power plants. Its main purpose is to extract residual heat from the reactor core after the reactor has been shut down. This function is critical for maintaining safe temperature levels and preventing the risk of overheating.

This pump removes residual heat from the reactor core post-shutdown, ensuring safe temperature levels and preventing overheating. It plays a crucial role in maintaining nuclear reactor integrity during cooldown operations. Designed for reliability and compliance with nuclear safety requirements, the pump features advanced materials and engineering to withstand high temperatures and prolonged operation. Residual Heat Removal Pumps support plant safety by continuously dissipating decay heat, ensuring system stability and avoiding potential thermal damage during non-operational phases. Their efficiency and dependability make them indispensable for nuclear power plant cooling systems.

Nuclear Charging Pump

A charge pump is used to boost the pressure of a fluid before it enters the inlet of the main pump, providing enough pressure to overcome the required net positive suction head (NPSH) and prevent cavitation in larger pumping equipment. In a nuclear power plant, particularly in pressurized water reactors (PWRs), a charge pump is a critical component of the reactor’s coolant system, maintaining the pressure and flow of the reactor coolant to ensure the reactor core remains adequately cooled.

Charge Pumps boost fluid pressure before it enters main pumps, ensuring proper net positive suction head (NPSH) to prevent cavitation. In nuclear plants, particularly pressurized water reactors (PWRs), they maintain reactor coolant pressure and flow, safeguarding reactor core cooling. These pumps are designed for reliability under high-pressure and high-temperature conditions, withstanding demanding nuclear environments. Their role in reactor coolant systems ensures seamless operation during critical processes. With advanced engineering and robust materials, Charge Pumps support plant efficiency and safety, preventing mechanical failures and ensuring the sustained cooling necessary for reactor stability.

Nuclear Turbine Driven Auxiliary Feed Pump - CUP-TWL™

• An Auxiliary Feed Pump is a vital component in steam power plants, especially in thermal and nuclear power plants
• It supplies feedwater to the steam generator or boiler when the main feedwater pump is unavailable, such as during startup, shutdown, or emergency situations
• The auxiliary feedwater system delivers high-pressure feedwater to the steam generators, which is essential for removing residual heat from the reactor core during emergencies

The TWL™ Turbine Driven Auxiliary Feed Pump ensures emergency feedwater supply without external power, critical during reactor shutdowns or feedwater system failures. Compact and space-efficient, it combines a pump and steam turbine in one unit. Its mechanical governor ensures quick startup, while a venturi discharge measures flow and pressure for precise control. The single-casing design enhances reliability, allowing submerged operation without performance loss. With capacities up to 1,500 m³/hr and high-pressure delivery, it meets safety-related nuclear applications, including reactor core cooling and boiler feed. Proven in rigorous tests, it ensures long-term reliability and operational safety.

Nuclear Auxiliary / Emergency Feedwater Pump

In the event of a main feedwater system failure, Auxiliary (Emergency) Feedwater Pumps provide a critical alternative water supply to the reactor to maintain safe operating conditions. These pumps can be either Motor-Driven or Turbine-Driven. Motor-Driven pumps typically operate using power supplied by a backup diesel generator, while Turbine-Driven pumps are powered by the steam produced by the reactor itself.

In the event of a main feedwater system failure, Auxiliary (Emergency) Feedwater Pumps provide a critical alternative water supply to the reactor to maintain safe operating conditions. These pumps can be either Motor-Driven or Turbine-Driven. Motor-Driven pumps typically operate using power supplied by a backup diesel generator, while Turbine-Driven pumps are powered by the steam produced by the reactor itself.

Nuclear Startup Feed Pump

A nuclear Startup Feed Pump is a crucial component in a nuclear power plant’s feedwater system. Its primary role is to supply feedwater to the steam generators during the startup phase of the plant. This pump ensures that the steam generators receive the necessary water to produce steam, which drives the turbines and generates electricity.

The CUP-FK Startup Feed Pump supplies initial feedwater to steam generators during nuclear plant startup. Its radially split, multi-stage barrel design withstands high pressure and temperatures, ensuring operational flexibility. Thermal shock resistance allows it to handle sudden temperature changes, while its full cartridge withdrawal simplifies maintenance. With capacities up to 2,800 m³/hr and delivery heads up to 5,000 m, it ensures efficient feedwater delivery under extreme conditions. Designed for reliability and cost-effectiveness, the CUP-FK supports safe and efficient startup processes in nuclear facilities, minimizing operational risks.

Nuclear Condensate Extraction Pump

A Condensate Extraction Pump is a crucial component in the condensate and feedwater system of a nuclear power plant. Its primary function is to extract condensate (water condensed from steam) from the condenser hotwell and pump it through various stages of heating and purification before it is returned to the steam generator or reactor.

A Condensate Extraction Pump is a crucial component in the condensate and feedwater system of a nuclear power plant. Its primary function is to extract condensate (water condensed from steam) from the condenser hotwell and pump it through various stages of heating and purification before it is returned to the steam generator or reactor.

Nuclear Cooling Water Pump

A Cooling Water Pump plays a vital role in the operation of a nuclear power plant. The primary function of the Cooling Water Pump is to continuously circulate the nuclear furnace coolant (light water) to the steam generator, removing and transferring the heat generated by nuclear fusion.

A Cooling Water Pump plays a vital role in the operation of a nuclear power plant. The primary function of the Cooling Water Pump is to continuously circulate the nuclear furnace coolant (light water) to the steam generator, removing and transferring the heat generated by nuclear fusion.

Nuclear Booster Pump

Booster pumps increase the pressure of a water within the reactor coolant system or feedwater system. These pumps enhance the efficiency and reliability of water circulation, which is critical for maintaining proper cooling and heat transfer in the reactor. Booster pumps play key roles in different systems depending on their placement and function.

Booster pumps increase the pressure of a water within the reactor coolant system or feedwater system. These pumps enhance the efficiency and reliability of water circulation, which is critical for maintaining proper cooling and heat transfer in the reactor. Booster pumps play key roles in different systems depending on their placement and function.

Nuclear Main Feedwater Pump

Feed Water Pumps draw water from the deaerator storage tank and push it through the high-pressure heater into the steam generator. They ensure that the amount of feed water matches the amount of steam produced.

The ClydeUnion Pumps Single Stage Feedwater Pump is designed to meet the rigorous demands of specific site environmental conditions and operating criteria, ensuring reliable performance in critical nuclear applications. This ASME III Class 2 or 3 pump features robust construction with stiff shafts and generous internal clearances, enhancing durability and operational stability. As a critical auxiliary machine, it plays a vital role in the safe and efficient operation of a nuclear plant, ensuring a reliable water supply to the steam generator. Additionally, it can be matched with a corresponding booster pump of similar construction for complete system performance, and multistage main and emergency feedwater pumps are available where required.

Reciprocating Pumps

API 674 Reciprocating power pumps are designed with exceptional versatility for easier product selection and faster turnaround. These units driven via electric motors or diesel engines through V-belt or gear.

ClydeUnion’s Reciprocating Pumps are versatile solutions for high-pressure nuclear applications, including chemical injection, reactor cleanup, and safety injection. Designed for reliability and minimal maintenance, they meet API 674 and ASME N standards. Their modular construction ensures ease of maintenance and adaptability to client requirements. With electric or diesel motor options and advanced stuffing box designs, these pumps deliver efficiency in continuous duty operations. Proven in demanding environments, they replace high-pressure centrifugal pumps for enhanced performance. Reciprocating Pumps are essential for maintaining operational safety and efficiency in nuclear power plants.

Nuclear Reciprocating Pumps

The ClydeUnion Pumps reciprocating power pumps are designed with exceptional versatility to efficiently meet the requirements of a wide variety of nuclear pumping applications. These units are ruggedly designed for minimum maintenance and to meet the heavy-duty requirements of continuous duty operation in general industry as well as API 674 services.

The ClydeUnion Pumps reciprocating power pumps are designed with exceptional versatility to efficiently meet the requirements of a wide variety of nuclear pumping applications. These units are ruggedly designed for minimum maintenance and to meet the heavy-duty requirements of continuous duty operation in general industry as well as API 674 services.