Non-Intrusive Quarter-Turn – MXFS and QXFS Fail-safe
The Limitorque® MX/QX Series B actuator has expanded to include a fail-safe actuator offering. The MXFS/QXFS fail-safe, smart electric actuator offers the same superior reliability, enhanced analytics and improved user experience while also allowing for fail close or fail open on loss of power or emergency shutdown. It is designed for application versatility and tackles the toughest, most critical services within the oil and gas upstream and midstream, commercial power, chemical, fresh and wastewater, and general industries.
... Read more Read lessTrue mechanical fail-safe with fail open or fail closed options
Low maintenance - no tubing or fittings to inspect
No leakage - no hydraulics or pneumatics
Full MXb/QXb capabilities including networks, remote diagnostics, RedRaven and FlowSync
Spare parts consistent with MX/QX products
Low carbon footprint due to zero-emission design
Hi/Lo pressure pilot available
Torque Rating Range
- Scalable Design 1,290 (146Nm) to >1,720,000 in-lbs.(194,480Nm)
SIL 3 capable
Discrete Status Alarms
Four standard and four optional status and alarm contacts are available for additional discrete feedback.
Analog Feedback
Analog voltage or current feedback for position (APT) or torque (ATT).
Network Service
The following network connections are available for the MXb actuator: Modbus DDC; Modbus TCP/IP; Profibus DP; Profibus DP with RedCom; Foundation Fieldbus H1; Profibus PA; DeviceNet; and HART.
Input Options
Input options are available for ESDs, PSTs, inhibits, additional mid-position stops, time-delayed ESD, remote or local controls lockouts.
Documents & Support
