actuators and accessories
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Valco Instruments Co. Inc. Sales:
800–367–8424
Fax: 713–688–8106
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199
Digital Valve Interface (DVI) and Position Feedbacks
DVI
Digital valve interface
for two position air actuators
We highly recommend the DVI for use with two position air actuators. It sends
a two second pulse of air to switch the valve and then vents the air, simulating
switching by hand and eliminating the potential for damaging the valve or
actuator with continuously-applied pressure. It also features LED position
indication, manual and remote operation, and a contact closure output on arrival
to the INJECT position, a feature which can be used to start a run or integration.
The DVI is available for 110 or 230 VAC.
Prod No
110 VAC
DVI
230 VAC
DVI-220
PFAF Position feedback
for two position air actuators
The optional position feedback (PFAF) can be field installed on any two position
standard air actuator. Each position provides a contact closure for TTL logic level
signals.
Prod No
PFAF
Position feedback
for manual valves
An optional position feedback is available for manual Valco W type and
Cheminert C2 and C4 series valves (standard on Cheminert C1 valves). The
continuous contact closure, provided only while the valve is in the inject position,
can remote start a chromatograph or data system.
Description
Prod No
For Valco W type valves
4 port
PFW90
6 port
PFW60
8 and 10 port
PFW36
For Cheminert valves
C2 series except 4 port PFC2
C2 series, 4 port
PFC4
C4 series
PFC4
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
