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Nuclear fuel industry

Thermal processing for the nuclear fuel cycle.

ASC is a US manufacturer with decades of experience supplying the nuclear fuel supply chain. Fuel facilities across the country use our UF₆ autoclaves and hot and cold boxes for their safety, reliability, and regulatory compliance.

An ASC UF₆ sampling autoclave on its skid

Capabilities

Designed and built for UF₆ handling

Uranium hexafluoride is radioactive and highly toxic. Every system we build for it is designed for containment first, with durability and multiple layers of safety.

Sampling containment autoclaves

Autoclaves that slowly heat and melt enriched UF₆ in 30B and 48-series cylinders, then tip forward so a small amount can be drawn into sampling bottles. Built for ASME Lethal Service, with multiple safety systems and interlocks.

Transfer autoclaves

Similar to sampling autoclaves, transfer autoclaves heat UF₆ to its vapor state so it can move from the storage cylinder into a secondary process, fully contained. They can also sublimate UF₆ straight from solid to gas, without melting it.

Hot and cold boxes

Heating (hot box) and cooling (cold box) stations for sublimation and desublimation of UF₆ in 30B, 30C, 48X, and 48Y cylinders, designed for consistent thermal control and operator safety.

Hot and cold boxes

Heating and cooling stations for UF₆ cylinders

ASC hot and cold boxes heat and cool UF₆ cylinders inside controlled enclosures for sublimation and desublimation. They are engineered with the same expertise as our pressure vessels and autoclaves, and they integrate with ASC sampling and transfer autoclaves and with facility ventilation and filtration.

  • Heavy-duty steel construction for long service
  • Viewing windows and access panels for safe operation
  • Custom sizes and layouts for your facility

Sublimation hot boxes
Desublimation cold boxes

Rendering of an ASC hot box enclosure with a UF₆ cylinder inside

Quality

Quality assurance the nuclear industry requires

From design to delivery, ASC supplies American-made, precision-engineered equipment built to the strictest safety and compliance standards.

Certifications

An ASC UF₆ autoclave with its door open, showing the cylinder cradle

ASME certified

Pressure vessels designed and stamped to ASME code, including Lethal Service requirements.

ISO 9001:2015

Our quality management system covers design, fabrication, inspection, and documentation.

Commercial-grade dedication

ASC has passed multiple commercial-grade dedication audits from nuclear fuel customers.

NRC requirements

Hardware delivered with the quality assurance U.S. Nuclear Regulatory Commission regulations require.

FAQ

Nuclear equipment questions

What is a UF₆ sampling autoclave?

A sealed, heated pressure vessel that holds a UF₆ cylinder while the uranium hexafluoride is melted and a sample is drawn. It serves as heater, sampling station, re-solidification chamber, and containment in one, so no UF₆ can escape during the process.

Which cylinders do ASC nuclear systems handle?

ASC autoclaves and hot and cold boxes are designed for standard UF₆ cylinders, including 30B, 30C, 48X, and 48Y.

Is the equipment built in the United States?

Yes. ASC designs and builds its nuclear equipment in the United States and supports it through installation, startup, and service.

Contact

Support your facility's mission.

Talk to our engineers about sampling autoclaves, transfer autoclaves, or hot and cold boxes.

HeadquartersValencia, California
OfficesUtah · United Kingdom
Phone(818) 833-0088
Emailinfo@aschome.com

Request a quote

Someone from ASC will contact you by phone or email.