Chell Instruments - Pi-Marked Vessels

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Vacuum Fabrications

Pi Marked Vessels
Marked Environmental Studies Air Sample Vessels It has been a mandatory requirement throughout the EEC, since 30th June 2003, for all newly commissioned transportable gas sample vessels to be Pi marked. The Vacuum Fabrications division of Chell Instruments Ltd has worked closely with HSE for over six years, attaining certification for the design and construction of Pi marked vessels. Vessels up to 30 litre capacity are now fully accredited and have been cleanliness tested by the Department of Environmental Sciences of the University of East Anglia, for whom they have been developed.
Construction is carried out in-house, where our UHV and UHP fabrication facility produces vessels conforming to BS EN 13322-2. All welders are qualified to BSEN 287-1 and use procedures that meet ISO 15614-1 and ASME IX . All welds meet the requirements of EN 25817 level C (Stringent) before they are helium leak tested to better than 1 x 10-9 Torr litre/sec.
Our customers rely heavily on our design and certification expertise and we are ready to commission new designs as they are requested. New designs will require full approval by the Nominated Body, Lloyds Register and this process involves extensive testing, both destructive and non-destructive, in order to prove the design.
	Vacuum Fabrications also has over 10 year's experience in the construction of containers (Bubblers) for the transport of hazardous and sometimes pyrophoric chemicals for the semiconductor industry and these are now designed and fabricated by the same team as the Pi marked vessels.
For Further information and pricing please contact Dave Harbour.