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UNID's linear actuator family is represented by the UMB-N intelligent linear valve actuator. Unlike the quarter-turn UM series, UMB-N is intended for valves requiring linear stem movement, including gate and globe valve applications. The official product documentation describes a modular BLDC actuator platform with ON-OFF and optional modulating control.
The official UMB-N product page specifies a thrust range of 1000–6000 N and a standard stroke of 60 mm. The broader UNID actuator selection also describes 60 mm and 100 mm linear-stroke applications, while the UMB-N product documentation specifically identifies the 60 mm configuration.
UNID provides optional modulating control using 4–20 mA and 2–10 VDC signals. The actuator also supports fieldbus communication such as Modbus-ASCII through RS-485. The official documentation describes modular plug-and-play construction for adding functions and simplifying maintenance.
UMB-N includes a handwheel as standard for emergency operation. Protection functions include overload protection, double limit position, valve-stuck detection, mechanical locking and speed control. The actuator is specified with IP67/IP68 enclosure protection depending housing configuration.
Failsafe is implemented as a modular battery function for moving the valve to the configured safe position when power fails. Backup power provides an alternative emergency operating mode. Aluminum housing is available as an option, while the standard enclosure is a nylon IP67 design.
| Feature | Specification |
|---|---|
| Product family | UMB-N linear control actuator |
| Application | linear valves including gate and globe valves |
| Thrust range | 1000–6000 N |
| Stroke | 60 mm on official UMB-N product documentation |
| Supply | AC100–240 V, DC24 V, AC24 V |
| Duty cycle | 30% ON-OFF; 75% Modulating |
| Motor | Brushless DC |
| Motor insulation | Class F |
| Position indication | red/green LED/LTD indication described by UNID |
| Emergency operation | handwheel standard |
| Modulating options | 4–20 mA and 2–10 VDC |
| Communication | Modbus-ASCII / RS-485 option |
| Protection | IP67 / IP68 |
| Ambient temperature | -10°C to +60°C |
| Humidity | 30–95% in UMB-N instruction documentation |
| Protection functions | overload, double limit position, valve stuck, mechanical lock, speed control |
| Options | failsafe, heater, power backup, aluminum housing, modulating |
| Valve applications | non-rising stem gate valve and other linear valve configurations |
| Documented valve size example | 2–6 inch JIS10K flange-end gate valve |
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