MT-50 Multi-Turn Marine Electric Valve Actuator
Featured Specifications
- Precise multi-turn control for gate and globe valves
- 50 Nm max torque
- IP68 aluminum housing (stainless steel available)
- Easy installation/retrofit
- User-configurable torque, closing time, & position
- Permanently lubricated
- Low power consumption
- Manual emergency override
Description
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 electric valve actuators are designed to be maintenance free. All NAG Marine actuators feature completely enclosed, permanently lubricated transmissions to ensure extended reliable service in the harshest operating conditions.
Technical Specifications
Technical Data
| Torque* | 36-185ft/lbs (250 Nm max) |
| Valve Stem Connector** | See Notes |
| Valve Applications | Butterfly and Ball Valves with partial turn operation |
| Valve Flange** | See Notes |
| Min-Max Closing Time | 0-100% / 0-90° 13-60 sec |
*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.
Mechanical
| Dimensions (H,W,D) | 9.01, 6.14, 8.22 in (229, 156, 209 mm) |
| Weight | 26.5 lbs (12 kg) |
| Housing | IP68 (continous submersion, 32ft/10m - 72hr) Corrosion resistant aluminum housing |
| Operating Temperature | -13° to 131°F (-25° to 55°C) |
| Over Temp. Protection | Current controlled |
| Under Temp. Protection | Stator coils used as heating element |
| Finish | Black |
Electrical
| Supply Voltage |
|
| Power Consumption | Max: 240W/560 VA |
Cables & Cable Glands
- Up to five (5) 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 installation manual for specific requirements)
- Circular MIL connectors for power/control/configuration
Control
| Interface Options |
Digital: 2x digital input (Open & Close) Analog: analog input (set position) analog output (feedback position) digital output (open, closed & alarm) |
| Network Valve-Position Sensor |
Absolute position sensor; provides correct feedback even after power failure. |
| Resolution |
0.39% / 0.35° & 360° range |
|
Configuration / |
USB connection to PC with Eltorque Manager v.3 |
| Configurable Parameters |
|
Emergency & Safety
| Manual Operation |
Standard fixed hand wheel, mechanical valve-position indicator |
| Apprx. Number of Turns Closed - Open |
21: 0-100% / 0-90°
|
Certifications
|
CE-Marked Type approved by DNV, GL, CCS, ABS, (Product Design Assessment - PDA), BV, & LR |
