Based on the technologically
advanced AXIOM platform, the Expeditor offers expanded capabilities with
intermediate control. Now standard discrete (open/closed) automated valves
maybe readily upgraded to offer partial closing for improved filling
operations, partial opening for less shock to steam lines, and partial
closing to prevent water hammer. No special pneumatic bleed pilots or air
filtration systems are required with the AXIOM’s standard pneumatic solenoid
technology. |
 Expeditor
Intro Video .wmv (33Mb) |
Improve Process Performance and Prevent
Damage to Equipment
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With expanded control and monitoring capabilities, the AXIOM
Expeditor offers unparalleled value in batch processing
applications. Below are a few examples of applications where the
AXIOM Expeditor may improve your plant operation.
Fill Control
Fill tanks and hoppers rapidly and accurately. You can set the AXIOM
Expeditor to partially close the valve to reduce flow as the full
level approaches. You get fast, economical “topping off” of every
batch with a single valve sized for high flow rates, which may be
throttled back at the end of the fill cycle.
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Flow Dampening
The AXIOM Expeditor allows valves to close using multiple steps,
which inhibits water hammer resulting from a sudden full closure.
You get prolonged valve and piping life, improved process flow
performance and less potential for catastrophic failure.
Thermal Shock Reduction
By partially opening a standard discrete valve, steam lines are
heated gradually; thus preventing thermal shock. Once lines are
heated, full opening may occur minimizing any potential damage to
steam lines. This is especially critical in CIP (clean in-place) and
SIP (steam-in-place) applications.
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Simple Operation and Control System
Integration
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Full open and closed cycling is performed by
energizing and de-energizing the discrete 24 VDC output (DO)
from the control system.
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Intermediate
control is achieved by maintaining power from the discrete
output (DO) and energizing the control system’s analog output
(AO). By changing the AO signal, the AXIOM control output will
toggle the solenoids to the desired position within ±4% of full
scale.
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- A preset
intermediate position may be achieved by maintaining power from
the discrete output (DO) and switching on the analog output (AO)
at a preset level between 4 and 20 mA.
- The
valve/actuator operates to the fail-safe position whenever the
discrete output (DO) is de-energized.
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| Fast, Convenient Set-up |
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Calibration may be
performed quickly and easily using the AXIOM Expeditor’s readily
accessible membrane control pad. By simply following the on-board
instructions, with the unit powered up, all set-up procedures may be
performed in a few easy steps and the actuator evaluated for proper
stroke timing.
During set-up, as
mentioned above, the AXIOM Expeditor automatically gages the speed
of the actuator to determine if flow restrictors are needed. If full
stroke is less than one second, flow restrictors (included with each
Expeditor from the factory) are required to assure smooth,
consistent intermediate control operation. |
AMI AMI
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