International Standard
ISO 27895:2009
Vacuum technology — Valves — Leak test
Reference number
ISO 27895:2009
Edición 1
2009-12
International Standard
Vista previa
ISO 27895:2009
44418
No disponible en español
Publicado (Edición 1, 2009)
Esta norma se revisó y confirmó por última vez en 2020. Por lo tanto, esta versión es la actual.

ISO 27895:2009

ISO 27895:2009
44418
Idioma
Formato
CHF 63
Convertir Franco suizo (CHF) a tu moneda

Resumen

ISO 27895:2009 specifies methods for the leak testing of vacuum valves used for control of gas flow or vacuum pressure in a vacuum system.It is applicable to vacuum valves that can be closed to leak rates less than 1 x 10-5 Pa m3/s for trace gas. The methods employ a sealing arrangement for the valve body, which is also specified in ISO 27895:2009. The methods are suitable for the verification of valve specifications.

A valve leak rate less than the nominal leak rate specified by the manufacturer during and after the operation enables the specification of such valve operating conditions as operating pressure range, permissible pressure difference between ports, bake-out temperature or operating temperature, and life cycle.

Informaciones generales

  •  : Publicado
     : 2009-12
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 11
  • ISO/TC 112
    23.160 
  • RSS actualizaciones

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