general reference
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VICIAG International
T
Tee
A typeofdistributionfittingwhichconnects
threepiecesof tubing,arranging them in the
patternof a“T”.
Through-typebore
Aborewhich is slightly larger than theODof
the tubingwhich isusedwith thegivenfitting.
Aunionwitha through-typeboreallows the
tubeends tobuttdirectly together,or forone
tube to runcompletely through thefitting.
Denotedby suffix“T”in theproductnumber.
Inorder toassurecorrectpilot lengths,we
recommend that ferrulesbemadeupon the
tubing ina standardunion.
U
Union
Afitting for connecting twopiecesof tubingof
the sameOD.
Seealso reducingunion
.
Femaleunion
A typeof compressionfitting inwhich
thefittingbodyhas female threads. Also
referred toas internal union.
Maleunion
A typeof compressionfitting inwhich the
fittingbodyhasmale threads. Also referred
toasexternal union.
Unsweptvolume
Thevolumeof anyportionof afittingwhich
is in theflowpathbutwhich isadifferent
diameter than theprimaryfloworifice through
the tubing/fittingassembly,or anyareanot
directly sweptby thefluidflow.This canalso
beknownas“deadvolume”if it isverypoorly
swept.
V
VICI
VICI® isanacronym forValco Instruments
Company Inc.
VICI nowdefinesmultiplecompanieswhich
manufacturevariousproducts for theanalytical
industry.
W
Wettedsurfaces
The surfaceswhicharecontactedby the
sample stream.
Y
Y (“Wye”)
A typeofdistributionfittingwhichconnects
threepiecesof tubing,arranging them in the
patternof a“Y”. Occasionally referred toasa
“wye”.
Z
ZDV
Zerodeadvolume.Seedefinitionbelow.
Zerodeadvolume
Describesaconnectionwhichdoesnot
addvolume to the systembeyondwhat an
extensionof tubingwould in itsplace.
Zerovolume
Whileoftenused interchangeablywithzero
deadvolume, it ideallydescribesafitting
design inwhich there isno internal volume,
suchasa through-typeuniondesigned tobutt-
fit twopiecesof tubing.
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Glossary
