Instrumentation Valves014 - page 44

valcovalves
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more information
Actuators
Air . . . . . . page194
Microelectric . 190-191
Standardelec . . . 193
SFprices
. . . . 126-127
streamselectionwith
continuousflowto individual
outlets
SDandSCvalves select and isolate
oneof 4 to16 streams,with the
remainderdead-ended in theSD
andflowing toacommonoutlet in
theSC. TheSF selector is similar,but
carries theevolutiona step further
with thenon-selected streams
flowing through individual outlets.
This is the ideal solutionwhen
reactionsorprocess streamswith
differingupstreampressuresmust
beanalyzed,andcanalsoprovide
independent containmentof toxic
ornoxious streams. AnSF selector
togetherwitha6port sampling
valveandpneumaticor electric
actuators compriseacomplete
sampling system for theautomated
analysisof up to16 samplepoints.
Note that streams1and4are
ventedwhile streams2and3are
returned to their sources in this
example.
Mode
shows sample loading
from stream4,whilemode
shows sample injectedonto the
analytical column
.
SFflowpath
SelectorApplications
CHROMalyticTECHnologyPtyLtdAUSTRALIANDistributors e-mail:
: 03 97622034
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