341LSC-160 Linear Electric Actuator Product Introduction

The 341LSC-160 linear electric actuator is a high-end electronic actuator in the 341 series designed for heavy-duty, high-pressure, and long-stroke operating conditions. It is specifically designed for large control valves, high-pressure shut-off valves, heavy-duty dampers, and flue gas dampers. With core advantages of ultra-large thrust, high-precision regulation, high stability, and strong environmental adaptability, it is widely used in power, petrochemical, metallurgical, environmental desulfurization and denitrification, municipal heating, papermaking, and other industries. It is a key device for achieving automatic fluid regulation and safety shut-off in large industrial automation control systems. The product is comprehensively upgraded in structural strength, control performance, and durability, meeting on-site requirements for continuous operation, large load fluctuations, and harsh operating conditions, providing reliable assurance for stable system operation.

The product adopts an integrated heavy-duty structural design. The whole machine consists of a high-torque reversible reduction motor, a multi-stage hard-tooth-face precision transmission mechanism, a ball screw propulsion assembly, an integrated control module, a high-precision position feedback unit, a manual operation mechanism, and a high-strength protective shell. The drive motor uses a special industrial-grade asynchronous motor with high insulation grade and excellent heat dissipation performance. It has built-in multiple protections against overheating, overloading, and stalling. It can effectively protect core components during long-term continuous work, frequent start-stop, or sudden load changes, avoiding motor burnout and improving overall operational safety and service life. The transmission system uses a combination of precision heat-treated hard-tooth-face gear sets and wear-resistant bearings, paired with an efficient lubrication structure. It features small transmission backlash, smooth output, and high mechanical efficiency. It can stably convert motor power into linear thrust, ensuring rapid actuator response and smooth operation, reducing impact on the valve, and extending the overall service life of the valve and actuator.

The control unit uses industrial-grade integrated circuits, encapsulated and cured with epoxy resin, possessing excellent moisture, shock, and electromagnetic interference resistance capabilities, enabling stable operation in complex industrial environments. The actuator uses standard AC220V power supply and supports discrete control signals and 4–20mA analog regulation signal inputs. It can be directly connected to PLCs, DCSs, and other automation control systems to achieve remote centralized control and closed-loop regulation. Position feedback uses a high-precision conductive plastic potentiometer to output a linear feedback signal corresponding to the valve position in real-time. This ensures high control precision, small repeatability error, and stable control of backlash and dead zone, meeting the precise regulation requirements of key process parameters such as pressure, flow, and liquid level, effectively improving system control quality.

The 341LSC-160 has a rated output thrust of 16000N with sufficient thrust reserve. It can effectively overcome unbalanced forces generated by high-pressure media and stably drive large-diameter, high nominal pressure linear control valves, gate valves, globe valves, and heavy-duty damper equipment. It is particularly suitable for long-stroke and heavy-load application scenarios. The product has a perfect manual operation mechanism, allowing for seamless manual/automatic switching. During equipment commissioning, power-off maintenance, or emergency conditions, the valve can be operated on-site via the manual mechanism, ensuring system safety and controllability and improving emergency response capabilities. At the same time, the actuator supports forward/reverse action settings. In the event of signal loss or power failure, it can achieve valve position hold, full open, or full close according to process requirements, adapting to different safety control logics and meeting the configuration needs of various complex systems.

In terms of structure and protection performance, the actuator shell is made of die-cast high-strength alloy material, featuring a sturdy structure, excellent rigidity, and strong vibration and shock resistance. It can adapt to complex installation environments and pipeline vibration conditions in industrial sites. The whole machine protection rating reaches IP65, possessing good dust, water, and oil stain resistance performance. It can operate stably in an ambient temperature range of -20℃ to 60℃, adapting to harsh on-site conditions such as humidity, high dust, and mild corrosion. The installation method is flexible, allowing for 360° arbitrary orientation installation without strict restrictions on the installation angle. Internal wiring is clear and standardized, and commissioning steps are simple, significantly reducing on-site construction difficulty and later maintenance costs. It is suitable for supporting new projects, replacing old equipment, and upgrading automation systems.

In practical applications, the 341LSC-160 has a wide adaptation range and can be used with linear valves such as large-diameter single-seat valves, double-seat valves, cage valves, high-pressure control valves, and angle valves. It is suitable for various operating conditions such as water, steam, high-temperature gas, oil products, flue gas, and weakly corrosive media. In the power industry, it is often used for boiler main steam valves, feedwater control valves, temperature and pressure reduction devices, and air duct and flue gas main damper control; in the petrochemical and chemical industries, it undertakes medium regulation and emergency shut-off tasks in high-pressure process flows; in the metallurgical industry, it is suitable for blast furnace gas systems, dust removal systems, and circulating cooling water main pipe valve drives; in the environmental field, it is widely used in desulfurization and denitrification systems and key valve control in large-scale sewage treatment plants; it also has a large number of mature applications in municipal central heating, papermaking, and other industries.

The product fully balances reliability, versatility, and economy in its design. The degree of standardization of core components is high, interchangeability is strong, and mechanical life is long, meeting long-term continuous stable operation and significantly reducing the frequency of shutdown maintenance. Compared with heavy-duty actuators of the same level, the 341LSC-160 performs outstandingly in thrust performance, control precision, operational smoothness, and service life. It possesses both the strong load capacity of heavy-duty actuators and maintains reasonable usage and maintenance costs. Relying on stable and reliable work performance, convenient commissioning and maintenance, and extensive scenario adaptation capabilities, this actuator can provide continuous and efficient automation control support for industrial users, effectively improve production efficiency, optimize process regulation, ensure safe and stable system operation, and help enterprises achieve intelligent, automated, and efficient production goals.