API 608 Ball Valve Guide
API 608 is commonly applied to metal ball valves used in industrial process service, including flanged and compact forged constructions. The standard is only one part of the purchasing definition.
Body style, bore, seat material, stem sealing, pressure class, end connection and fire-safe requirements determine whether a particular API 608 configuration fits the piping specification.
When comparing API 608 offers, keep the material, seat, bore, ends, test scope and operator basis consistent so the commercial comparison reflects the same valve.