Sample valve

A valve for obtaining a sample from a continuous flow of fluid includes a primary flow path for directing a continual flow of the fluid through the valve, a valve stem which engages a passage in a valve seat for metering a sample of fluid passing through the primary flow path out through a separate...

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Bibliographic Details
Main Authors KING; GERALD V, KENESSON; THOMAS M
Format Patent
LanguageEnglish
Published 06.12.1994
Edition5
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
PIPE-LINE SYSTEMS
PIPE-LINES
STORING OF DISTRIBUTING GASES OR LIQUIDS
WEAPONS
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Summary:A valve for obtaining a sample from a continuous flow of fluid includes a primary flow path for directing a continual flow of the fluid through the valve, a valve stem which engages a passage in a valve seat for metering a sample of fluid passing through the primary flow path out through a separate outlet passage in the valve. The valve further includes a passage separate from the primary flow path for injecting a purge gas into the sample outlet passage to remove any sample fluid contained in the outlet passage after the sample valve has been closed and before the sample container is taken off-line so as to avoid atmospheric emissions of the sample fluid.
Bibliography:Application Number: US19930032875