The Axiom is
a discrete valve communication and control device for quarter-turn automated
valves (patent pending.) Its advanced position sensor offers reliable
longlife performance with push-button settings that may be made quickly and
conveniently.
The integral pneumatic pilot valve offers contemporary features which
further enhance the operating performance of your automated valve system.
And, the Axiom’s rugged construction will withstand your most challenging
plant environments.
Axiom is now available with advanced diagnostics with AS-Interface
click here for details
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 The Axiom is corrosion proof, temporarily submersible and
suitable for use in Hazardous areas. Designed for NEMA 4, 4X
& 6; (IP67) Class I & II Div 2 Nonincendive (EEx nA) and
Class I & II Div 1 and 2 (EEx ia) Intrinsically Safe.
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High strength durable enclosure and pneumatic manifold
are constructed of anodized aluminum and epoxy coated.
Impact resistant cover is made of high strength Lexan
polycarbonate. All fasteners are stainless steel.
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High visibility mechanical and electronic indication
confirm OPEN/CLOSED position and solenoid status for greater
safety and convenience.
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Universal burn out proof solenoid operates on less than
0.6 watts of power and standard version will accept either
24VDC or 120VAC, reducing stocking requirements.
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Electronic sensing, switching and communication
components are sealed and potted inside function module to
protect against residual moisture, vibration and corrosives.
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High accuracy position sensor system is solid state with
no moving wear points for highly reliable and precise
position feedback.
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Push button set points for Open & Closed accurately lock
in position settings. Settings remain locked in when power
is removed and reapplied.
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Integral pneumatic valve operates on standard plant air
and will cycle most actuators in less than 2 seconds.
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Wiring and maintenance access is quick and convenient for
easy set-up and installation.
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Internal manual pneumatic valve override is standard
enabling local automated valve operation.
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Standard five way, two position valve operates both
double and single-acting actuators and features a
re-breather to feed instrument air into spring side of
actuator to keep out corrosives.
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Axiom directly attaches to VDI/VDE 3845
(Namur) sizes 1 & 2
actuator accessory patterns and may be readily adapted for
other actuator applications.
Pneumatic Control
 The
Axiom’s pneumatic valve system
consists of a low power pilot that drives the main high flow spool valve.
Pilots may be selected for conventional, intrinsically safe or bus
networking applications. Both stages of the pneumatic valve system have been
designed for long life, high tolerance to air line contaminants and ease of
maintenance should components become fouled.
Features
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Pilot poppet and main
spool design offer long life, exceptional tolerance to dirty air and
tight shut-off.
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Spool and pilot valve may
be conveniently removed and cleaned should large contaminants become
lodged in the valve.
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Universal solenoid may be
used for standard AC or DC applications.
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5-way, 2 position spring
return configuration may be used for either single or double-acting
actuators. Dual coil shuttle piston versions are also available for fail
in last position.
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Low power consumption of
solenoid reduces current flow on bus networks enabling more units and
longer distances on a single segment.
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Rebreather channels
exhausted air from pressurized side of actuator into spring side
preventing ingestion of contaminated air from the environment that may
corrode springs or actuator internals.
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Standard internal manual override enables
convenient setup.
Spring Return Actuator
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