Type of butterfly valves (DOBV vs. TOBV)Main sealing technologies for TOBVLamellar seal principleConcept weaknessesHow to reduce leak paths with lamellar seals?Design optimization:Lab test examples & results
On-demand production Short lead-time Reduction of parts in the stock Reduction of costs Possibility to repair old systems
Global Codes & StandardsCodes and standards are under continuous change about every 5 yearsCommon industry codes and standards
Multistep trims split the pressure drop in multiple stages in order to reduce the generated acoustic power by limiting the fow regime of each single stage.
International StandardAmerican Standards EN ISO 15848-1 (2015)Industrial valves – Measurement, test and qualification procedures for fugitive emissions – Part 1: Classification system and qualification procedures for type testing of valves …
Achieving what cannot be done by individual companies alone:Joint Non-Competitive Research ProgramsLobbying:National GovernmentsEuropean UnionCreating, Developing and Influencing International Standards
IOGP JIP33 End‐Users Standardization Initiative
The design of control valves is rapidly moving to the production of compact and complex geometries, difficult to be produced by traditional processing technologies Additive manufacturing is exploiting the market …
More and more demanding conditions (corrosive fluids, new refining process, ecc) for pressure containg equipment of pipelines and plantsNeed for very accurate material selection on the basis of fluids and …
Control valves are used more in Complex process Industry due to requirements and also higher facilities. are well developed in valves world. facilized with safety equipment’s
