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HyVision Valve Position Monitoring
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Hytork®'s HyVision is a rugged, corrosion
resistant, positive position indicator (electrical and visual) for all
1/4 turn applications.
Micro switch, Proximity Sensor, Reed switch, and Pneumatic switch
models:
- No external moving parts
- High visibility visual indicator
- Flow path monitor for multiport valves
- Integral fully enclosed Safety Bracket
for
XL Series actuators
- Weather Proof to IP66HyZone 2 Zone 2
certified
(Ex N IIC T6)
- HyDiv 2
NEMA
4, 4x (FM approval pending)
- Eliminates additional Junction Boxes
- Kwik Set Cams (No Tools Required)
- Corrosion Resistant
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A Multiple Use
Junction Box
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With up to three conduit entries, the HyVision housing and multiple
internal terminal wiring strips eliminate the need for separate
electrical junction boxes. Solenoid valves, limit switches and other
feedback devices can all be wired in the one single HyVision enclosure.
A real cost and time saver.
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Safety Bracket
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The fully enclosed HyVision Safety Bracket made from Zytel is designed
as an integral part of the switchbox assembly and mounts without
couplings or other bracketry to the Hytork® "XL" series of actuators. The
fully enclosed bracket prevents fingers getting trapped in the moving
shaft, reduces contamination build up around the shaft and improves
installed rigidity.
An integral, positive, auto-centered no-slip drive
(to VDI standards), connects the actuator to the switch drive. There are
no screws to tighten to the shaft and nothing to work loose. Mounting is
quick, easy and foolproof !
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Position Indication
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The
HyVision Switchbox
contains your selection of up to four switches to electrically or
pneumatically provide accurate, positive feedback of the valve or damper
position. This "instrument" indication is complemented by a large rugged
visual indicator which is easily seen from any angle.
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Rugged & Corrosion
Resistant
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To meet the challenges of today's
process environments, HyVision Switchboxes are manufactured from
state-of-the-art composite materials that provide superior strength and
maximum resistance to attack from corrosives. The base housing and
bracket are Zytel. A sealed, clear Lexan
indicator cover and stainless steel fasteners provide the
essential physical and chemical protection for the indicator.
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User Friendly
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The HyVision spring loaded, Kwik Set cams permit easy and accurate
positioning of the limit switch trigger points. A splined gear prevents
slipping caused by vibration or corrosion. To facilitate ease of wiring,
the terminal strips and switch module is simply removed from the base.
Access to the switchbox internals is quick and easy - a quick turn of
the Lexan cover, with its "O" ring sealed bayonet lock to the housing,
completely opens the large working area of the switchbox. The HyVision
has two "O" Ring seals, one for the shaft and one for the lid (instead
of unreliable flat face seals), ensuring that it is suitable for humid
environments.
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Maximum Visibility Of
Position Indicator
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The HyVision visual indication is the largest, most easily seen
indicator on the market. Protected by the virtually unbreakable Lexan
cover, accurate position indication can be seen from almost any angle.
By design, the overall envelope dimension of the HyVision is smaller
than most other designs, even though the visual indicator is
significantly larger. The HyVision has no external moving parts.
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Switch
& Sensor Types |
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Shown with 2 switches installed
Shown with 4 switches installed
Large, clamp type, terminal strip and switch
module
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Many types of switches are compatible and readily available, including
V3 micro switches, proximity sensors, reed switches and hermetically
sealed switches. The right choice for your application. |
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Enclosure Types |
HyVision Switchboxes
are available in five basic enclosure types.
- HyVision for
0° - 90° rotation.
- HyFlow for 0°
to 180° degree rotations, as well as flow path monitoring for multiple
path valving.
- HySight visual
indication alone.
- HyValue
without visual indication.
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Approvals |
- HyZone 2 to CENELEC ZONE 2
- The "HyZone 2", which utilises specially
rated components, is certified to CENELEC Zone 2 Specifications to
BS6941: 1988 (Certificate No. EX94Y4004)
- HyDiv 2, to NEMA 4, 4X
- FM division 2 approval pending.
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Electrical Ratings |
(Resistive Loads):
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SPDT
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SPDT
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AMP
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VAC
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VDC
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AMPS
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VAC
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15
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125
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10
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125
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15
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250
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10
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250
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0.5
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-
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125
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-
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0.25
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-
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250
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-
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-
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5
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125L
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Dimensional Drawings & Technical Information |
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For technical information
download files listed below:
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Quality
Assurance From The Valve Automation Center |
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This Hytork® product is Quality Assured Registered
management systems to ISO 9001. This Quality Hytork® product is one
of many valve automation products that are stocked, ready for
installation as part of an engineered valve automation package at
HYTORK®'S VALVE AUTOMATION CENTER.
It is the professional center for valve automation
packages. Packages that are designed and assembled from a host of
stocked accessories.These include:
- Aluminium, SG Iron and specific
application actuators
- Position monitoring switches and
sensors
- High visibility visual indication
switch enclosures
- Cost Savers
- Manual Override Gearboxes
- Positioners
- Hytork® solenoid valves
All these standard Valve Automation
products, assembled to a dimensioned CAD drawing, which can accompany
the package for your complete documentation requirements.
A proven
source for quality automation (ISO 9001) of all your
1/4 turn valve and damper requirements.
A typical process plant will have many types and manufacturers of 1/4
turn valves, with different Actuators, different Switches,
different Solenoids, different Positioners
and Brackets that are neither engineered nor consistent from one order
to the next.
HYTORK®'S VALVE AUTOMATION CENTER
provides engineered similarity throughout your
plant, lower spares, simplified
installation, maintenance, documentation and easily trained technicians
with overall
reduced costs.
This service is also available from
approved Hytork®
Distributors - for details telephone Hytork®.
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