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Series :	Electric Actuator
Name :	aox
Model :	aox
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Summary
"OMRX" series electric actuator is used to control 0 ° ~ 270 ° rotation of the valves and other similar products, such as butterfly ball valve, damper, flapper valves, cock valves, etc. It’s widely used in petroleum, chemical, water treatment, paper making, power plants, heating, light industry and other industries. It drives by 380V/220V/110V AC power. Control signal is 4-20mA current signal or 0-10V DC voltage signal, enables move the valve to the desired location, achieving its automation, maximum output torque up to 3000Nm.
Shell
The shell is made of horniness auminium alloy, pass through anodic oxidation treatment and polyester powder coating, so it has strong corrosion resistance.

Electric Machinery
Squirrel-cage Asynchronism electric Machinery, small volume, large torque, and small inertia force, F-class insulation rating, Inside hot protection switch, avoid damaging the electric machinery.

Manual Structure
The design of handwheel ensure safe, reliable, labor-saving, small volume. When it don’t have electricity, it can be manually operated by handle. If it is not easy operate by manus, you can put the wrench in the wrench folder, then you can easy to use it.

Indicator
Indicator installes in the center axis, so it can observes the valve position. It adopts convex mirror design, no cumulate water, more convenient to observe.

Desiccator
It is used for control temperature, avoid internal moisture of electric actuator condensed because of the changing of temperature and weather.

Sealling
Good sealing performance, and the protection class of standard product is IP67, and it can chooses IP68 protection grade.

Limit switch
Mechanical, electronic double limit. Mechanical limit screw is adjustable, safe and reliable; electron limit switch is controlled by the cam mechanism, easy adjustment institutions can set the position accurately and conveniently, and it doesn’t affect by excessive handwheel.

Self-locking
Exact worm and worm gear can efficiently transfer large torque, high efficiency, low noise (max. 50 dB), long life, and it has self-locking function to prevent the inversion, transmission part is stable and reliable, no need to add oil.

Anti-off bolt
When Removed the shell, the bolt would be attached to the shell and didn’t fall off.

Install
The installation size of the bottom conforms to the international standard ISO5211 / DIN3337, The holes are double square so that it’s easy to fix the linear or 45 ° corner valves attached square bar, adaptable. It can be installed vertically, also can be installed level.

Circuitry
Control circuit conforms to the single-phase or three-phase power supply standard, reasonably compact line layout, wiring terminals can effectively satisfy a variety of additional functional requirements.

Performance Parameter

Model	Max output torque	Time for rotating	output axis	Electrical machinery	Single-phase rated current（A）50HZ	Handwheel rotation	Weight
Model	N·M	S	mm	W	220V	N	Kg
OMRX-005	50	30	φ20	10	0.3	10	3.6
OMRX-008	80	30	φ22	10	0.3	11	3.6
OMRX-010	100	30	φ22	15	0.35	11	4.6
OMRX-015	150	30	φ35	15	0.37	13.5	4.6
OMRX-020	200	30	φ35	45	0.45	13.5	13
OMRX-030	300	30	φ35	45	0.6	13.5	13.4
OMRX-040	400	30	φ45	60	0.7	16.5	13.8
OMRX-060	600	30	φ45	90	0.7	16.5	14
OMRX-080	800	45	φ65	180	0.85	49.5	14.3
OMRX-100	1000	135	φ65	180	0.85	49.5	60
OMRX-160	1600	135	φ53	180	0.85	40.5	60
OMRX-200	2000	135	φ53	180	0.85	40.5	60
OMRX-300	3000	135	φ53	180	0.85	40.5	60

Standard Technical Parameter

Shell

Aluminium alloy Shell,waterproof leve:IP67,NEMA4 and 6

Power supply

110/220V AC 1PH,380/440V AC 3PH, 50/60Hz, ±10%

Control supply

110/220V AC 1PH，50/60 Hz, ±10%

Electric Machinery

Squirrel-cage Asynchronism electric Machinery

Limit switch

2 X On/Off，SPDT,250V AC 10A

Accessorial Limit switch

2 X On/Off，SPDT,250V AC 10A

Stroke

90°~270 ±10°(0°～270°)

Speed protection/

Operating temperature

Inside hot protection, On 120℃ ±5℃/Off 97℃ ±15℃

Indicator

Continuous situation indication

Manul operation

Mechanical lever

Self-locking device

Provide self-locking by worm and worm gear

Mechanical Limit

2 pieces of adjustable bolts

Desiccator

7-10W (110/220V AC) condensation-preventing

Bonding hole

2个(Pieces) M18

Ambient temperature

-20℃--+70℃

Lubrication

Aluminium base grease（EP）

Material

Steel, Aluminium alloy, Aluminium bronze,Polycarbonate

Ambient humidity

Max 90％ RH, Non-Condensed

Shock Survial

X Y Z 10g,0.2～34 Hz,30 minutes

External coating

Dry powder,epoxy polyester

Outside View

OMRX-05～08 Appearance and installation dimension

OMRX-10～15 Appearance and installation dimension

OMRX-20～80/Appearance and installation dimension

OMRX100～300 Appearance and installation dimension

Circuit Diagram

Structure

Electric actuators is make up of the following parts

◎Shell: including shell and pedestal

◎drive parts：Whole sealing high-performance squirrel-cage motor for the power source

◎driving mechanism：Double worm gear and clutch parts

◎ratio control parts：separate with the mechanical parts, easy to debug

◎Limit switch Part

◎Opening Detected and Feedback Part

Installation of Electric actuators

Installation sites

Notes of interior installation

Ø　　　　 It’s not a explosion-proof product, so that please don’t install in the place of explosive gases

Ø　　　　 Add a protective cover when it installs in the water splashing place

Ø　　　　 Please reserve space for repairing cables, manual operation.

Notes of outdoor installation

Ø　　　　 In order to avoid the rain, direct sunlight and so on, it needs to install a protective cover.

Ø　　　　 or choose IP68 protection grade

Ø　　　　 Please reserve space for repairing cables, manual operation.

Ambient temperature and The condition of Fluid temperature

Ambient temperature

Ø　　　　 Ambient temperature at 30℃～+60℃

Ø　　　　 when Ambient temperature is below zero, the machine needs to install dehumidify desiccator.

The condition of Fluid temperature

Ø　　　　 when using with the valve, the heat of the fluid will move to the body, then the body temperature will rise.

When the fluid temperature is a high temperature, the bracket which is connecting with the valve need to make special treatment.

Ø　　　　 Standard bracket: fluid temperature below +65 ℃

Ø　　　　 Intermediate temperate bracket:Fluid temperature over +65 ℃

Ø　　　　 High-temperature bracket: Fluid temperature over +120 ℃

Connect with the valve

Turning valves by hand, confirmed that it didn’t have abnormal situation, then go to full-closed position;

Fix the bracket on the valve

Put the electric actuator on the bracket, then tweaking the screw bolts and nuts lightly

Put the electric actuator to the closed position, fixing valve mandrel and electric actuator with coupling and screw bolts

Screw the electric actuator and the bracket

Rotate the electric actuator by handle to confirm non-eccentric, curved ramps, balance exercises, and pay attention to don’t over travel

Note: Decrease hysteresis of the coupling as far as possible.

Pay attention to keeping the switch of electric actuator in line with the switch of the valve when installing. The flange of the electric actuator bottom accord with the standard ISO5211, if the valves connect with the flange is also conform to this standard,it will be connect conveniently; if doesn’t, it would connects with the bracket in addition.

Debug Description

stroke limit adjustments

Turn round handwheel,let the electric actuator move to the full-closed location. And loosen nuts on limit cam by spanner, rotating cam limit (yellow open, red off) to adjust to just push down limit switch (CLS) position, and then screw limit cam nut. So, it’s the way to set the full-closed limit position of the electric actuator. Wide-open position is setting as the same way.

Mechanical limit adjustments

Loosen the nuts of the mechanical limit, and then move the electric actuator to the full-closed position by hand, rotating the limit nuts,stop rotating when it comes across inside the fan-shaped gear, and then circle out twice, screw the nuts at last. So, it’s the way to set the full-closed mechanical position of the electric actuator. Wide-open position is setting as the same way.As the following pictures:

Running test

Manual Operation

First of all, it should be cut off the power,when it’s operating by hand; take off the rubber caps on the gear cover, put the accessory handle in the hexagonal hole; rotate the handle clockwise direction to reduce the opening.

Note: Opening to the wide-open or full closed position, limit switch turns half round, it will comes across mechanical block, if rotate excessively, it would result the damage of other parts, so it should be avoid excessive force.

Electric operation

1.Before electric operation, checking opening meters in line with the angle of valves by the methods of manual operation(wide-open, full-closed);

2.Check the wiring correct, at the same time need to use an external switch to confirm opening and closing movements;

3.After confirm the over status,then start electric operation

NOTE

check wiring diagram, power supply, input/output signal correctly.

Don’t change the internal wiring.

If the power supply is 3PH, it should be checking the rotating direction.

Enable the electric actuator lies in a half on / off position, turn on electricity and input the open signal.

If the electric actuator runs to the open position,it means the wiring is correct.

If the running direction is opposite, it must be change 2 pieces wiring in 3 pieces of wiring.

Maintenance

Oiling: Because of using the long life, good pressure resistance of Mo-based special grease, so it doesn’t need to add the oil

Regular operation: When the valve works infrequently, it should drive the machine regularly, checking abnormality or not.

Fault status & Countermeasure

Fault status

Cause

Countermeasure

Electric-machine

Doesn’t work

Low voltage of power-supply or no power-supply

Checking the voltage of power-suppl

Input signal is broken or the value is not enough

Checking the Input signal

break line or separate with the termianl

Connect the wire 、change a new termianl

Temperature protector is working

Redue surrounding temperature

Reduce use frequency

Load is too heavy

Limit switch has morked as middle-opening

adjusting stroke stop

Input capacitance of electric machine is damaged

Change capacitance

The line of electric machine is broken

Change the motor

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