
Engineering Q&A
Technical FAQ & Design Criteria
Critical engineering answers referenced against API / ASME / ISO standards.
At what size and pressure class should engineers switch from floating to trunnion ball valves?↓
Does ANSI/FCI 70-2 Class VI mean absolute zero leakage under all operating conditions?↓
What is the difference between DBB and DIB-2 in API 6D trunnion ball valves?↓
What metallurgical documentation is required for NACE MR0175 sour gas ball valves?↓
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Guia de Seleção de Válvula de Esfera API 6D Trunnion vs Flutuante para Alta Pressão e Serviço com Gás Ácido
Official engineering resource by SMD Flow Control







