Multi-turn Electric Valve Actuator
NAG Marine MT Series electric valve actuators offer a high level of precision valve control. They are an ideal solution for requirements demanding accurate flow control, easy installation and low cost operation.
NAG Marine MT Series electric valve actuators are designed to be maintenance free, and feature completely enclosed, permanently lubricated transmissions to ensure extended reliable service in the harshest operating conditions.
+ Technical Specifications
|Torque *||7-37 ft/lbs (50 Nm max.)|
|Valve Stem Speed *||7-17 RPM|
|Valve Applications **||2 & 3 inch multi-turn valves (typical)|
|Closing Time *||2 inch: 20 seconds; 3 inch: 25 seconds|
|Dimensions (H,W,D)||16, 4.5, 9 in (406.4, 114.3, 228.6 mm)|
|Weight||33 lbs. (14.9 Kg)|
|Housing||Corrosion proof, IP68 aluminum housing|
|Operating Temp||-13° to 131°F (-25° to 55°C)|
|Over Temp Protection||Current controlled|
|Under Temp Protection||Stator coils used as heating element|
|Supply Voltage||125-230V DC or 110-240V AC (50/60 Hz)|
|Power Consumption||Max: 120W/280 VA, Standby: 11W|
|Cables & Cable Glands|
Up to four (4) M20 cable glands allow for serial connection of power supply and fieldbus wiring
Actuator housing includes threaded mounting holes
Use IP68 glands for all wires to maintain IP rating
Optimized for fieldbus installation (refer to intstallation manual for specific requirements)
2x digital input (open & close)
3x digital output (open, closed & alarm)
CANopen Fieldbus: Max. 127 nodes/network - allows positioning & extended control
|Valve Position Sensor||Absolute position sensor, provides correct feedback even after power failure|
|Resolution||4.85° - Maximum 13 turns|
|Configuration & Set-Up||USB connection to PC with Eltorque Manager v.3|
|Configurable Parameters||Valve type
Open & Closed positions
Speed, torque, valve position, valve seat region position
Inverted I/O or fieldbus parameters depending on control interface
|Emergency & Safety|
|Manual Operation||Ergonomic hand wheel, mechanical valve-position indicator, status LED when actuator is powered
Safety function disables motor if actuator is operated manually while powered
|2 inch valve - 39
3 inch valve - 49 4 inch valve - 59
|Approvals||Type approved by DNV, GL, CCS, ABS (Product Design Assessment - PDA), BV and LR|
|*||Configurable using Eltorque Manager v.3 - download free at: www.eltorque.no/downloads|
|**||Adapted flange bracket and stem connection is required and must be ordered with the actuator
Customer must provide a valve/manifold drawing to ensure proper mechanical interfacing.
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