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actuators and accessories
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Valco Instruments Co. Inc. Sales:
800–367–8424
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187
Introduction
Electric Actuation
Standoff Assemblies
All valves, no matter what their
actuation mode, can be ordered with
a standoff assembly. The standoff is
an extension shaft mounted between
the handle or actuator and the valve,
allowing the valve to be installed
within a heated zone while the
actuator or handle remains outside at
ambient temperature. The standoff
extends through the oven wall, and is
secured by a clamp ring supplied
with the assembly. Standard standoff
assembly lengths are 2", 3", 4", and 6".
Other lengths can be special-ordered
at additional cost.
Right Angle Drive
Some installations don’t allow the
valve and actuator to be installed in a
typical in-line configuration. The RAD
(right angle drive) is a 90° gearbox
which permits the actuator or handle
to be installed at a right angle to the
valve. The RAD fits all VICI electric and
air actuators.
switch, but can be easily connected
to an external data system for fully
automated control. The microelectric
actuator has built-in multidrop RS-232
(RS-485 optional) for bidirectional
communications. The SVI (serial valve
interface) was designed specifically
to interface our standard electric
actuators with RS-232 compatible
systems, allowing control of up to six
actuators via modem, BASIC program,
or Valco-supplied PC software.
The new
universal actuator
operates
virtually any Valco or Cheminert
rotary valve – two position and selector
alike – greatly simplying the electronic
aspect of instrument design.
The
microelectric actuator
features
automatic valve alignment, high-speed
switching, compact size, 24 VDC power
input, and reversible direction (in the
selector model).
If lower cost outranks those factors
in your consideration, our
standard
electric actuator
(110/230 VAC) offers
a dependable, economical solution.
Both types of electric actuators
can be operated manually with a
controller assembly that features
position-indicating LEDs and a toggle
Microelectric actuator
Two position, page 189
For selectors (multiposition), page 190
Standard electric actuator
Two position and selector, page 193
Standoff assemblies
page 205
R
ight angle drive
page 204
Universal actuator
page 192
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail: sales@chromtech.net.au Tel: 03 9762 2034