FCI 70-2-2021

FCI 70-2-2021

Control Valve Seat Leakage

214,00 €

Detalles

ANSI/FCI 70-2-2021 establishes six classes of seat leakage for control valves. Also defined are specific test procedures to determine the appropriate class. Included are classes commonly associated with double-port, double-seat or balanced single-port control valves with a piston ring seal or metal-to-metal seats, commercial unbalanced single-port, single-seat and balanced single-port valves with extra tight piston rings or other sealing means and metal-to-metal seats, valves for critical applications where the control valve may be required to be closed, without a blocking valve, for long period of time, and resilient seating control valves with "O" rings or similar gapless seals, among others.

Información adicional

Autor Fluid Controls Institute
Publicado por FCI
Tipo de Documento Norma
Tema /subgroups/17303
Número de páginas 12
Reemplaza FCI 70-2-2013,FCI 70-2-2006,FCI 70-2-2003
Palabra clave FCI 70-2-2021