Certificação de Válvulas de Alívio e Segurança-PSVs com selo ASME
O processo de certificação de PSVs com selo ASME se inicia com os testes e as auditorias previstos pelo National Board publicação NB-18 National Board Pressure Relief Device Certification Administrative Requirements.
O National Board prevê a certificação NB para Fabricante (Manufacturer) e para Montador (Assembler), conforme definidos no código de construção, no caso o ASME Sec VIII DIV1 Requirements of UG-136(c) and (d):
- A Manufactureris defined as a person or organization who is completely responsible for design, material selection, capacity certification, manufacture of all component parts, assembly, testing, sealing, and shipping of pressure relief valves certified under this Division.
- An Assembler is defined as a person or organization who purchases or receives from a Manufacturer or another Assembler the necessary component parts or pressure relief valves and assembles, adjusts, testes, seals, and ships pressure relief valves certified under this Division, at a geographical location other than and using facilities other than those used by the Manufacturer.
Além da certificação NB, conforme NB-18, também há o certificação VR, conforme NB-23 National Board Inspection Code, para reparos em PSVs, complementado pelas publicações NB-514 Accreditation of VR Repair Organizations e NB-550 Application for National Board VR Certificate of Authorization to Repair Pressure Relief Valves.
Para fornecimento ou manutenção e reparo de PSVs sempre se requer que a certificação contemple o Selo ASME, ou seja, somente a certificação do National Boarding não é suficiente.
