High Performance Linear Electric Actuator Control Valve

High Performance Linear Electric Actuator Control Valve

OVERVIEW

The High Performance Linear Electric Actuator Control Valve integrates the PSL series electronic linear electric actuator with high-precision globe control valves. Engineered for demanding industrial throttling, pressure regulation, temperature modulation, and flow rate control, this assembly combines high thrust density (1 KN up to 25 KN) with rapid, highly stable dynamic response across linear strokes ranging from 20mm to 100mm.

Equipped with the cutting-edge PSAP4 microprocessor intelligent servo control unit, the actuator directly receives standard 4-20mA DC or 0-10V DC analog control signals and executes high-resolution digital closed-loop positioning with ±1% repeatability without requiring external servo amplifiers. The mechanical structure features high-efficiency precision drive screws, cast aluminum alloy modular housings, top-mounted auto-declutching manual handwheels, and dual limit/torque protection, ensuring exceptional reliability and minimal maintenance across power plants, chemical refineries, metallurgy, HVAC, and industrial fluid processing pipelines. 

FEATURES OF ELECTRIC ACTUATORS

1. High thrust and compact design: Produces linear thrust from 1.0 KN up to 25.0 KN with an exceptionally compact, lightweight footprint;

2. Long linear stroke capability: Delivers smooth linear travel with maximum stroke options of 50mm, 60mm, 65mm, and 100mm for diverse valve designs;

3. High-precision SMT intelligent controller: Built-in PSAP4 microprocessor servo system provides digital self-calibration and ±1% repeatability;

4. High-starting-torque synchronous motor: Equipped with reversible high-torque synchronous motor ensuring instant start-stop without overshoot;

5. Locked-rotor & thermal overload protection: PSL200 series features inherent locked-rotor capability; PSL300 series incorporates precision thermal cut-off switches;

6. High positioning sensitivity: Adjustable sensitivity of ±(0.5~5%) F.S. eliminates hunting and ensures deadband stability in precision loops;

7. Continuous analog feedback: Direct 4-20mA DC current feedback and 0-1000Ω precision potentiometer output for real-time valve position telemetry;

8. Convenient top handwheel override: Top-mounted manual handwheel provides effortless emergency manual positioning without power;

9. Dual travel limit switch system: Standard electrical micro-switches and optional 2WE auxiliary passive contact switches (220VAC, 5A);

10. High-rigidity mounting yoke: Heavy-duty stainless steel / carbon steel yoke columns ensure rigid connection and eliminate stem bending stresses;

11. Rugged die-cast aluminum housing: High-durability epoxy/polyester electrostatic powder coating provides superior corrosion resistance;

12. Excellent ingress protection: IP65 / IP67 enclosure sealing standard with multi-cable entry ports (2×M20×1 or 3×M20×1);

13. Flexible multi-mode control: Supports step action, active contact (220VAC), passive contact, and continuous 4-20mA modulating modes;

14. Multi-voltage power supply options: Standard 220VAC 50Hz, with available options for 24VDC, 110VAC, and 380VAC industrial supplies;

15. Wide valve compatibility: Seamlessly couples with single-seated, double-seated, cage sleeve, 3-way, and high-pressure steam control valves (DN15~DN300);

16. Wide operating temperature range: Performs reliably across ambient temperatures from -10°C to +70°C (optional low-temperature to -40°C).

PRODUCT ADVANTAGES

Diversified needs

To accommodate diverse process requirements from low-pressure HVAC water loops to supercritical power plant steam lines, the PSL/PSQ actuator family offers extensive thrust ranges (1 KN to 25 KN), rotary torques (100 Nm to 3000 Nm), multiple stroke ratings (50mm to 100mm), and customizable signal interfaces (4-20mA, 0-10V, 0-1000Ω, 220VAC active/passive contacts).

Superior performance

Quality Assurance

Every PSL linear actuator and control valve assembly undergoes rigorous pressure containment hydrostatic testing, stem packing helium leak testing, stroke linearity verification, and 100% full-load thrust calibration before leaving the factory.

Long warranty period

MAIN FUNCTIONS

Explosion Proof

Available with certified flameproof explosion-proof enclosures (Ex d ⅡB T4 Gb) suitable for hazardous Class I, Zone 1 & 2 gas environments in chemical, oil refining, and offshore gas processing installations.

Colors

Finished in standard industrial high-visibility green housing with black control base, or customized RAL color powder coatings designed for harsh offshore, marine, and chemical plant atmospheres.

Protection grade

Standard IP65 (PSL300 series) and IP67 (PSL200 series) ingress protection reliably shields internal motors and SMT electronic modules against heavy rain, dust ingress, and high-pressure washdowns. Optional IP68 submersible enclosures are available.

Low-temperature

Standard ambient operating range is -10°C to +70°C. Optional low-temperature configurations with internal PTC anti-condensation heaters and arctic-grade synthetic lubricants operate down to -40°C.

CONTROL MODE

External control

Supports external on-off switching via active 220VAC contacts (PSMF2AC mode) or passive dry contact inputs (PSMF2NS mode) with continuous 4-20mA valve position feedback signals.

Integrated control

Equipped with the PSAP4 on-board intelligent proportional servo amplifier. The single-chip microprocessor directly executes SMT artificial intelligence control algorithms, digital calibration, and auto-tuning with 4-20mA input/output.

Fieldbus

Supports digital fieldbus integration (Modbus RTU, Profibus-DP), facilitating direct integration into modern distributed control systems (DCS) and plant SCADA architectures.

Electric Actuator Technical Data

Table 1: PSL Series Linear Electric Actuator Standard Models & Technical Specifications

Table 2: PSQ Series Quarter-Turn Electric Actuator Standard Models & Technical Specifications

Table 3: PSAP4 Intelligent Controller & System Performance Specifications

Table 4: Additional Functional Components & Modular Ordering Codes

Table 5: High Performance Linear Electric Control Valve Sizing & Selection Guide

COMPANY INTRODUCTION

Founded in 2014, Tianjin Freya Automation Technology Co., Ltd. (Freya) specializes in the research, development, and manufacturing of linear electric actuators, quarter-turn electric actuators, motorized control valves, and pneumatic control assemblies. With deep engineering expertise in high-precision process control, Freya provides robust, reliable flow automation solutions across thermal power generation, petroleum refining, chemical processing, metallurgy, HVAC, and municipal water treatment.

Committed to engineering excellence, Freya delivers customized valve-actuator assemblies tailored to complex field conditions, extreme differential pressures, and severe temperature requirements. The company holds numerous design patents, utility model certifications, and international quality accreditations, ensuring world-class performance and customer satisfaction across global industrial markets.

APPLICATIONS

CERTIFICATES

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