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Electric EL Actuators |
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El-O-Matic electric actuators are reliable quality
products, which can be relied on to perform faultlessly no matter how
demanding the circumstances. As market leader in actuators, we realise
that the consistent high quality of our products is of crucial
importance to your production process. That's why our development
activities focus on quality. You'll find this reflected by the
performance of our actuators, and the choice of high quality materials.
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Features |
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Standard versions are provided with mechanical end stops, limit switches
for open/close indication and anti-condensation heater. Corrosion
resistant materials used throughout aluminium housing, stainless steel
fastenings and hard-bronze gear transmission. Also:
- Can be applied to all ball, plug and butterfly
valves.
- Low-noise, smooth running by the use of high ratio
worm and wheel reduction.
- Compact construction and lightweight due to the use
of high-grade aluminium alloys
- Corrosion protected by the use of the external
coating (2-component polyurethane).
- Wide range of voltage options.
- Self-locking reduction gear with minimum backlash
in the transmission.
- Visual position indicator.
- Mountings in accordance with the ISO 5211 or DIN
3337 standard.
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ELS, EL & ELD Electric Actuator Series |
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Our range of electrical actuators comprises the ELS, EL and ELD series.
The series covers the torque range from 18 to 2500 Nm (160 to 22100
lbf.in.). The ELS series is an economic choice for application on
fittings with a small passage area. The ELD series is designed for
heavier applications and is provided with a declutchalble manual
override for emergency control.
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Standards |
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The ELS, EL and ELD series are produced in accordance with the quality
standard ISO 9001. The actuators, depending on model size, are also in
compliance with the following industry standards:
ISO 5211 EN 55014
DIN 3337 EN 50082-2
EN 50014 EN 50018, EN 50093
EN 60204 EN 60529
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Operating Principal |
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 All
actuators in this range are totally self enclosed and have thermal
switches in the motor windings to prevent motors from overheating.
Standardised connection flanges are used for simple installation on all
quarter turn valves, such as ball, plug and butterfly valves.
ELS actuators are the economic choice for small valves
in the torque range of 18 to 25 Nm (160 to 221 lbf.in.). The basic AC or
DC motors provide torque by means of a set of spur reduction gears. EL
actuators cover the middle range of torque's from 55 to 800 Nm (486 to
7080 lbf.in.). They have worm/worm wheel reduction gearing and hand
wheel manual override. This is directly engaged for hand operation and
is disengaged on release, hence is non-rotating when under motor
control. Torque switches are included to provide mechanical protection
for the actuator drive and that of the driven valve components. The
worm/worm wheel reduction gearing is self-locking and is exceptionally
smooth and silent in operation. ELD actuators are designed for heavier
applications and have torque's from 1200 to 2500 Nm (10620 to 22100
lbf.in.). They are basically similar to the EL actuators (above) but in
addition are provided with a declutchalble manual override.
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Applications |
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Remote operated valves mean ease of operation, increased efficiency,
better control of the system and therefore an increased life span of the
installation. Where there is no compressed air available, the choice for
electric actuators is an obvious one, but for new installations electric
actuators can have a cost advantage. The basic cost of compressed air is
certainly more than that of electric power, and electrical cabling is
more flexible and less expensive to install than a compressed air
network.
Electric actuators are also suitable for applications
requiring a high torque: the standard version of the EL series covers
torque's up to 2500 Nm (22100 lbf.in.). So which actuator should you
use? El-O-Matic has available all relevant technical data on practically
all quarter-turn valve manufacturers in the world. This electronic
database enables us to select the right actuator for you, whatever valve
type: Ball, butterfly or plug valve.
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Special Versions |
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- Low temperature versions.
- Explosion proof version
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Options |
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El-O-Matic EL series electric actuators are not restricted to open/close
applications, with the addition of one or more of the available kit
options the requirements for fully-fledged control units can often be
met. For instance in many cases the addition of a positioner will enable
the actuator to be used for sophisticated control applications Below is
a brief summary of the available options:
- Extra switches.
- Speed controllers.
- Potentiometers.
- Position transmitters.
- Positioners.
- Local control station.
These options may be added to factory built units, or
supplied in kit form. When supplied as kits all parts are included
together with a simple to follow installation sheet.
We would be happy to advise you concerning your
particular requirements.
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Downloads |
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