Customer case study
Sentinel Gas Systems: High-Quality Orbital Welding for Hazardous Gas Systems
Portable, high-purity tube welding for hazardous gas systems up to 300 bar, delivered via two AMI 207 units.
Sentinel Gas Systems designs, manufactures and installs compressed gas and ultra-high purity (UHP) systems for customers across automotive, pharmaceutical and research sectors, often handling hazardous or toxic gases at pressures up to 300 bar. When repeatable, top-quality tube welding became critical to both their on-site service and their Coventry clean room facility, they turned to Westermans for two AMI 207 orbital welding units.
The customer
Sentinel Gas Systems is a UK-based specialist in compressed gas and ultra-high purity (UHP) system design, manufacturing and installation. Services span gas system design and manufacturing, installation and project management, orbital welding, service and maintenance, mass spectrometer helium leak testing, commissioning and customer training. Sentinel's systems serve a diverse customer base across the automotive, pharmaceutical and research industries, operating from a purpose-built facility in Coventry.
"In all cases, we design systems that can handle gas supplies up to 300 bar – often of a hazardous or toxic nature."
The challenge
- Handling hazardous gases safely: systems must handle gas supplies up to 300 bar, often of a hazardous or toxic nature
- Tube welding of the highest quality: Sentinel's reputation rests on consistently high-performance welds
- Repeatability at scale: needed to reproduce identical weld quality across a high volume of jobs
- Portability for clean room and on-site work: a previous AMI system delivered quality results but lacked the portability Sentinel needed across both settings
Westermans recommendation
- 2 x AMI 207 orbital welding units, supplied from stock, fully serviced with key operational parts fitted as new
- Full training and ongoing access to spares and maintenance support
- Memory function retaining up to 100 welding programmes for consistent repeatability
"In many cases, this calls for tube welding of the highest quality, which has pointed us towards the AMI units and the services available from Westermans International."
The outcome
- Enhanced both on-site service capability and the Coventry cleanroom facility
- Consistent, repeatable weld quality via the AMI 207's 100-programme memory function
- Full servicing, training, and spares/maintenance access included as standard
- Clear cost benefit compared with buying new units
- A long-standing, repeat-purchase relationship built on "long-term confidence in the services we provide"
"Our work with Westermans International helps to give us, and our customers, long-term confidence in the services we provide."
Why this setup worked
The AMI 207 gave Sentinel the portability their earlier orbital system lacked, without compromising the weld quality their reputation depends on. Supplying from Westermans' extensive stockholding meant Sentinel could meet demand quickly, while full servicing and training ensured the units were production-ready from day one.
Want to find out more about orbital welding equipment or what to look for when choosing a system? Browse our full range of Orbital Welding Machines, AMI welders, or explore our Orbital Welding Guide for more on process, applications and standards.
"Quality welding is central to the work that we undertake, particularly as it is at the high performance end of the spectrum, so it is not only a factor on a project-by-project basis, but is effectively at the heart of our reputation."
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