Chapter:
Topic:
INJECTORS
&
VALVES
Liquid and Loop Sampling with Backflush
of
Pre-column
toVent(UsingExternal Liquid SampleValve)
SRI has plumbed the valves in
yourGC according tothe
accompanyingschematic.
In
the LOADposition:
The liquid sample valve (LSV)
ininposition forloading while
the gassample valveis ininject
position.
In
the INJECTposition:
Carrier gas flows through the
liquid sample slot
in
LSV and the
lO-port valvethen onto the
column.
The lO-port valveremains inthe
inject position
throughout
the
injectionprocedure and then
switches toloadpositionforvent.
V
alec'
s ten port valvecatalogue
has
alarge assortmentof
plumbing applications. Youcan
orderValco's catalogue from:
VALCO
BOX55603
HOUSTON, TX 77055
(800) 367-8424
(713) 688-9345
YourValve
was
plumbed
by:
Date:
GC serial number:
LOAD POSITION
LIQUID SAMPLE
0:
~~t·
.
INJECTPOSITION
•
"".,-<-1-<1)
COLUMN
