Valserve

Based in Lyon, France, Valserve (formerly Velan SAS) is one of the world’s leading companies in the design and manufacturing of safety related valves for Nuclear Power, Cryogenics, Defense, Space, and Big Science sectors.

Since 2025, Valserve is a 100% subsidiary of the Framatome Group, further strengthening its international position and strategic role with its customers.

Thanks to our fully integrated manufacturing facility, we manage the entire production chain from design to manufacturing and on-site maintenance. Our products comply with the most demanding international design codes and regulations. Our commitment is built on four pillars: safety, quality, performance, and reliability, backed by over 50 years of proven operational experience and more than 250 product qualification reports.

Valserve safety related valves are operating in over 180 nuclear power and military reactors worldwide, as well as in numerous cryogenic facilities handling liquefied natural gas (LNG), hydrogen, oxygen, or liquid helium at temperatures down to absolute zero.

At Valserve, we understand that designing and manufacturing safety-related valves for the nuclear industry requires more than advanced technology: it requires total quality and absolute reliability.

Engineering Excellence

A dedicated team of 60 engineers and experts uses advanced tools (FEA, CFD, 3D modeling) to design valves that comply with the world’s most demanding nuclear design codes, including ASME III (USA), RCC-M (France), and NP-068 (Russia).

Cutting-Edge Manufacturing

With 100 highly qualified staff and state-of-the-art equipment’s including computer numerical control (CNC) machining centers, plasma hard-facing machines, 3D metrology systems, and clean assembly rooms, we ensure consistent quality from design to delivery.

Total Quality & Certification

Valserve’s quality management system and products are certified to the most stringent international standards: ISO 9001, ISO 14001, ISO 45001, ISO 19443, ASME III (N & NPT stamps), as well as ESPN (France), HAF 604 (China), OIT (Russia), CEFRI, and AEO.

Valserve is one of the few valve manufacturers to have a specific and dedicated maintenance department, able to perform training, valve maintenance and upgrading in inside nuclear reactors containments.
Our teams, composed of 50 highly qualified engineers and technicians in mechanical engineering, electricity, welding and machining, are able to serve our clients everywhere in the world,

Maintenance tools :

• METEOR : Modular Equipment for Tightness Evaluation and On-Site Requalification
• OMERUS : Tool for Measuring Hard Facing Deposit Coating Thickness
• STEPHAN : Calibration tool for Valserve pneumatic actuators
• VELSCAN : On site diagnostic system for air operated actuators