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HL-LHC Standards and Best Practices Workshop (11-13 June 2014 )

Fluid systems and components for general use – Conclusion session C. Parente (Technical Quality Officer ) O. Pirotte (TE-CRG-ME). HL-LHC Standards and Best Practices Workshop (11-13 June 2014 ). Field global overview. Source: INTERNATIONAL CLASSIFICATION FOR STANDARDS, 2005 (ISO).

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HL-LHC Standards and Best Practices Workshop (11-13 June 2014 )

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  1. Fluid systems and components for general use – Conclusion sessionC. Parente (Technical Quality Officer)O. Pirotte (TE-CRG-ME) HL-LHC Standards and Best Practices Workshop (11-13 June 2014)

  2. Field global overview Source: INTERNATIONAL CLASSIFICATION FOR STANDARDS, 2005 (ISO)

  3. Identified specific groups Global overview EDMS: 1376815

  4. Which technical subjects, within the fluid systems field, should be covered by standards (existing or not)? 1 2 3 Standardization related Technical groups/sub-groups field related Specific know-how and best practices related 4 5 General/project coordination related Other subjects (not field related)

  5. 1) Technical groups/sub-groups field related • Cryogenic pressure vessels (incl. cryostats) • Pipelines (incl. cryogenic lines, piping in valve boxes and cryostats) • Pressure fittings • Flanges, couplings and joints • Valves • Vacuum technology • Final testing of pressure equipment • ASME BPVC vs EN 13445 for the construction of pressure equipment – a few discussions • Both codes are acceptable. EN 13445 has the advantage of providingpresumption of conformitywith PED Essential SafetyRequirements • Consistent use of one single code from design to manufacturing and testingisrequired (complementedeventually by more stringentrequirementsspecified by CERN for specific cases) • If PED is applicable • Notifiedbodies have to beinvolvedfrom the beginning to provide assistance on the conformityassessment and for CE-marking of the equipment (case of riskcategories ≥ II)

  6. 2) Specific know-how and best practices related • Bellows / flexibles hosesrequirements for standard, and non-standard, applications (e.g., using non-standard materials – Ti – and specific types of bellows – edgewelded) • Sizing of safetydevicesfor cryogenicequipment • Protection of cryogenic volumes + vacuum jacket • Two-phase flow discharge (e.g., inletsupercritical conditions) • Cleanlinessrequirements for different types of equipment • Welding of cryogenicequipment (welding techniques specified in standards are not adapted to cryogenicapplications, e.g., lip-welding) • Qualification of non-standard materials for lowtemperature applications (minimum guaranteedmechanicalproperties, etc)

  7. 3) Standardization related • Standardization of components (reducevariants) • Valves • Pumps • Vacuum components • Flanges types – standardizationbetweenUS-EU • Fittings • Vacuum sealing of static vacuum insulatedequipment • Interfaces types limitation

  8. 4) General/Project coordination • Top-bottom system requirements propagation and bottom-top verification of compliance is needed • Avoid over constraining a system (examples) • Baking (for vacuum): the equipmentwith the minimum heating speed constrainsthe operation/conditioning of the wholesector • Cooling water installations: coolingtemperaturedefined at 10°C for one small client while all the other clients requireonly 25°C ! -> big impact on global price • System overviewisrequired to identifydiscrepancies on limiting, sizing, testing, operation, values • Definition of relevant parameters (not only beam related) to be validated by top management  parameters derived from beam requirements and that impact variables such as, for example, pressure, temperature, mass-flows, heat loads, required to perform the design of systems, sub-systems and equipment • Define key performance parameters for acceptance of systems (at top-level) • Interfaces and corresponding interface data identification is required • Management of the information of the equipmentin view of operationand maintenance (as-built documentation, main parameters, operation and maintenance manuals,…)

  9. 5) Other subjects (not field related) • Guidelines for equipment handling • Spaceconstraints • Environmentaround the equipment (survey, alignment, removablecollimators…) • For remotehandling • Standardizationbetweenexperiments and HL-LHC • Standardizationon remotehandling • Factoryacceptancecriteria • Site acceptancecriteria • Commissioning tests

  10. Thank you for your attention and to all who contributed to the discussions: L. Alberty, G. Apolunari, V. Baglin, A. Ballarino, I. Bejar Alonso, Y. Body, O. Capatina, S. Giannelli, R. Carcagno, L. Dassa, J. Gascon, M. Juchno, Y. Muttoni, S. Pattalwar, G. Perinic, O. Pirotte, F. Sanchez Galan, G. Volpini, Z. Zaharieva Questions?

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