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EFM-EOM-Battery backup fail safe electric actuator for Marine

Model NO.: EFM fail safe electric actuator

Certification:  RoHS, ISO, CE

Voltage: 24V DC / 110V AC / 230V AC (customizable)

Operating Temperature: -30°C to +70°C (-22°F to +158°F)

Protection Class: IP68 (submersible)

Customized: OEM, ODM

Fail-Safe Action: Spring return or battery backup

Keywords: Marine electric actuator

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EFM-EOM-Battery backup ATEX electric actuator
fail safe electric actuators
fail safe actuator
Product Detail

The EFM-EOM-Battery Backup Fail Safe Electric Actuator is an intelligent solution designed to maintain control of critical valves and dampers in the event of a power failure. By integrating a battery backup system, this fail safe actuator ensures that industrial processes can continue without interruption, safeguarding against potential hazards and downtime in sectors such as oil and gas, chemical processing, power generation, and water treatment.



Fail Safe Electric Actuators Impact on Industrial Automation


  • The introduction of the EFM-EOM-Battery Backup Fail Safe Actuator is expected to have a significant impact on industrial automation, particularly in sectors that require uninterrupted control of processes.

  • Oil and Gas Industry:the fail safe electric actuators ensures that critical valves can be controlled even during power outages, reducing the risk of leaks and process interruptions.

  • Chemical Processing: the electric actuators's fail-safe positioning ensures that reactions can be safely halted or controlled in the event of a power failure.

  • Power Generation: the fail safe actuator's ability to maintain control of critical valves contributes to the stability and safety of power generation processes, even during unexpected power loss events.

  • Water Treatment: the fail safe electric actuators ensures that essential processes such as flow control and chemical dosing can continue, preventing contamination and ensuring water quality.


Key Features


✔Fail-safe feature ─ Automatically resets to a pre-determined safe egress position in case of a power failure or lost system connectivity.


✔ Marine-Grade Build– Stainless-steel (screws, nuts and washers) and anodized aluminum for ultimate saltwater use.


✔ Waterproof & IP68 Rated – Completely sealed and watertight, perfect for underwater and high-pressure wash down.


✔ Powerful & Accurate Control System — Fail safe electric actuator provides precise positioning of dampers, valves and other marine systems, giving you the reliable torque output you need.


✔ Explosion Proof Options Available – Explosion proof certified for use in hazardous areas (ATEX, IECEx) where flammable gases might be present.


✔ Low Power Consumption – Minimize your system’s energy cost.


✔ Easy to integrate – compatible with the majority of marine control systems (4-20mA, Modbus, CAN bus etc.).



Why Choose Our Marine Fail Safe Actuator?


✅ Trustworthy for Emergencies– Backpowering assured for system security in case of power outage or failure.


✅ Marine electric actuator perfect For Tough Environment – Sulphur, saltwater, UV Resistant Folder .


✅Low Maintenance - Sealed bearings and self lubricating features mean more up time for the user.


✅ Custom Fit – Marine electric actuator offered in various sizes, voltages and control options.




STANDARD SPECIFICATIONEFM1-H-DOEFMA-H-DOEFMB-H-DOEOM2-DOEOM3-DOEOM4-DOEOM5-DOEOM6-DOEOM7-DO
Max torque (Nm)3550351002004006008001000
Max torque (lbf.in)31044331088517703540531070808850
Travel time (seconds)
24V AC/DC
111522193939394747
Voltage24V AC/DC (For 220V power adapter is required)
MotorF class squirrel cage induction motor (Thermal sensor resistance protection to 135°C)
Duty cycleON-OFF S2~15min / Modulating S4~50% (600 starts per hour)
Battery duty5 x full stroke per full charging. 24VDC 1500mAH battery 5 hours to fully charged.
Back up positioinPower loss position can be factory preset to open or close
ControlON-OFF control or Modulating control (4-20mA, 0-10V, 2-10V switchable)
Feedback signalON-OFF (2 x open / close active feedback + 2 x oepn / close dry contact feedback)
Modulating (Default 4-20mA, 0-10V and 2-10V switchable)
Ingress protectionIP67
Space heaterAnti condensation heating resistance
Manual overrideHand wheel
Limit switchesSPDT 2 x Open / Close, 5A@250VAC, 2 x auxiliary Open / Close
Mechanical stopper1 each, external adjustable for open and close travel
IndicatorDorm type 3D indicator
PaintingEpoxy powder coating
Travel angle90° (±5°)
Ambient temperature-25°C…+70°C
Casing materialAlluminium alloy
Cable entry2 x PG13.52 x PG16
HumidityMax. 95% r.h
ColorBlack RAL9005 orange peel finish
OPTIONS
MotorH class motor (Thermal sensor resistance protection to 155°C)
Modulating dutyS4~75% (less than 1200 starts per hour)
Torque switches2 x open / close switches
Anti corrosionC3 / C5 coating
ISO5211 Mounting
Available flange sizeF03 / F05 / F07F05 / F07 / F10 / F12F10 / F12 / F14
Double Flange sizeF03+F05+F07F07+F10F10 + F12
Output shaft size11mm / 14mm / 17mm14mm / 17mm / 22mm22mm / 27mm / 30mm
Out put shaft typeDouble square (star shape) for square valve stemSquare / Diamond square / Round single keyed / Round double keyed / Two flat
Max. stem diameterN/A22mm35mm
Max. two flatN/A22mm30mm
Max. stem height20mm35mm55mm
Dimension size (mm)
A218265321
B223217206
C11579103
D219216262
E76120150
F118240297
G11mm / 14mm / 17mm14mm / 17mm / 22mm22mm / 27mm / 30mm
H203555
φ I36 / 50 / 7050 / 70 / 102 / 125102 / 125 / 140
J4-M5 / 4-M6 / 4-M84-M84-M10 / 4-M12
Weight (Kg)5.7Kg12Kg23Kg
Package dimension (mm)300*280*320400*400*400420*400*560

EFM-EOM-Battery backup ATEX electric actuator Structure Diagram


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