valcovalves
138
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Actuators
Air . . . .page194-195
Microelectric . 188-191
Standardelec . . . 193
STFprices . . . . 130-131
techtip
Because themost
commoncauseof valve
failure is strayparticulates
entering thevalve,we
strongly recommend the
useof in-linefiltersat
sampleentrypoints.
OurZUFRfilters feature
inexpensiveandeasily
replaceable lowpressure
dropfilter screens (2or
10micron).
Thefiltersareavailable
in1/16",1/8",and1/4"
standard, reducing,and
bulkheadversions.
Filters . . . . . . page52
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sampletrappingwith
continuousflowto individual
outlets
TheSTF selector isavariationof
theSTflowpath,with the single
difference that thenon-selected
streamsare returned to theirown
ventsor sources rather thanbeing
dead-endedor trappedas theyare
in the standardSTconfiguration.
This is ideal for reactorprocesses
inwhich removal of substantial
amountsof samplewouldupset the
equilibriumwithin the reactor,or if
the stream is toxicornoxiousand
mustbe isolated.
AnSTF selectoronanairor electric
actuator alongwitha similarly
equipped6port valvecomprise
acomplete sampling system for
theautomatedanalysisof up to
16 samplingpoints.
STFflowpath
SelectorApplications
CHROMalyticTECHnologyPtyLtdAUSTRALIANDistributors e-mail:
: 03 97622034
