ITQ Series Electric Quarter Turn Actuator

ITQ Series Electric Quarter Turn Actuator

OVERVIEW

The ITQ Series electric quarter-turn actuator is designed, engineered, and manufactured to provide exceptional reliability, precision, and robust performance for valve automation in demanding industrial environments. Featuring a compact size, lightweight yet robust hard-anodized aluminum housing, and a wide output torque range from 100 N·m up to 9000 N·m across 11 model sizes, the ITQ series seamlessly integrates with 90° rotary valves including butterfly valves, ball valves, and plug valves, as well as air dampers and process control equipment.

Engineered with high-efficiency double worm gearing, the actuator delivers inherent self-locking capability to keep the valve position unchanged against reverse line torque without requiring an external mechanical brake. The advanced auto-declutching manual override mechanism allows safe on-site manual operation during power failure or commissioning, automatically disengaging when the motor starts. With modular control options ranging from basic On-Off to intelligent non-intrusive LCD local control (ICM2/ICM3), fieldbus digital communication (Profibus/CANopen), and rechargeable battery fail-safe backup (BP), the ITQ series offers a complete, dependable automation solution for process industries worldwide.

FEATURES OF ELECTRIC ACTUATORS

1. Compact and robust construction: High torque output (Max 9000 N·m) with lightweight aluminum casting, saving pipeline space and installation cost;

2. Hard anodized aluminum housing: Internal and external hard anodized finish with electrostatically applied polyester dry powder coating resists severe corrosive industrial environments;

3. Precision self-locking double worm gearing: High-precision machined double worm gear mechanism delivers high torque, low noise, minimal backlash, and inherent self-locking against reverse valve torque without mechanical brakes;

4. Removable drive bushing & ISO 5211 base: ISO 5211 mounting flange (F07 to F30) with removable drive bushing facilitates easy on-site keyway or square machining and direct valve mounting;

5. Auto-declutching manual override: Auto/Manual switchable lever with handwheel allows emergency manual operation; motor start automatically restores electrical drive unless lever is padlocked;

6. Reliable mechanical torque sensing system: Cam-activated torque switches for both Open and Close directions provide instantaneous overload protection across the entire travel stroke;

7. Continuous high-visibility position indicator: Large top window with high-contrast mechanical indicator dial and pointer provides clear valve position monitoring from a distance;

8. High starting torque induction motor: Custom-engineered squirrel cage induction motor provides high starting torque and high efficiency, equipped with built-in thermal protector (150°C) and Class F insulation;

9. Multi-contact limit switch arrangement: Directly engaged with driving shaft for precise travel limit control; 2 Open / 2 Close SPDT switches (250VAC 10A) standard, expandable up to 4 switches per end;

10. Weatherproof and watertight enclosure: Precision radial seals and O-rings ensure IP67 weatherproof protection standard, with optional IP68 (10m submersible for 100 hours) and Ex d IIB T4 explosion-proof ratings;

11. Captive cover bolts: Stainless steel cover bolts are specially retained in the housing to prevent bolt loss during maintenance and wiring installation;

12. External adjustable mechanical stoppers: Heavy-duty stainless steel travel stop bolts provide 0°~90° adjustability (±5°) and prevent mechanical over-travel during manual or power operation;

13. Built-in anti-condensation space heater: 5W ceramic space heater effectively eliminates internal moisture accumulation and condensation under fluctuating ambient temperatures;

14. Vibration-resistant terminal block: Spring-loaded push type and heavy-duty screw terminals guarantee firm, vibration-proof electrical wiring connections;

15. Intelligent local control & LCD display: Advanced ICM2 / ICM3 control modules feature non-intrusive magnetic rotary switches, digital LCD status display, auto phase discriminator, and self-diagnostics;

16. Fieldbus & Fail-Safe battery backup: Seamlessly supports Modbus RTU, Profibus-DP, and CANopen network architectures, with optional 24VDC rechargeable battery backup (BP) for automatic fail-safe emergency positioning.

PRODUCT ADVANTAGES

Diversified needs

Industrial piping and automated valve installations span across global process sites with vastly different operational, climatic, and environmental challenges. Not only are the pipeline media and valve torque characteristics critical in selecting electric actuators, but on-site operating environments-ranging from desert heat to offshore marine humidity and sub-zero Arctic freeze-are equally vital. FRY ITQ series electric actuators guarantee safe, stable, and highly responsive service across diverse, extreme working conditions.

Superior performance

Quality Assurance

Only when every automated valve and actuator delivers consistent, maintenance-free reliability throughout its entire design lifecycle can plant operations achieve maximum economic efficiency, process continuity, and operational safety. All ITQ actuators undergo 100% factory torque testing, high-voltage insulation dielectric screening, and rigorous helium leak checking.

Long warranty period

MAIN FUNCTIONS

Explosion Proof

To meet hazardous industrial plant requirements where flammable gases, vapors, or combustible dusts are present (Group IIA, IIB, IIC), the ITQ series offers explosion-proof certified configurations (Ex d II B T4 Gb) compliant with international and domestic standards including IECEx, ATEX, KTL, and NEPSI (GB 3836). The flameproof enclosure withstands internal explosion pressures without transmitting flames to the external surrounding atmosphere.

Colors

We support customized surface coating solutions according to client engineering specifications and international color standards (RAL / Pantone). Utilizing advanced electrostatic dry powder spraying technology and high-performance polyester or epoxy resin coatings, the surface finish provides superior resistance against UV degradation, acid/alkali chemical splash, and coastal salt spray while delivering an aesthetically pleasing, brand-aligned visual identity.

Protection grade

Standard ITQ actuators feature IP67 (NEMA 4, 4X & 6) ingress protection with precision NBR/EPDM O-rings at all housing interfaces. For severe outdoor, washdown, or underground pit installations, an optional watertight IP68 enclosure is available, certified for continuous submersion at a 10-meter water head for 100 hours.

Low-temperature

For extremely cold Arctic or sub-zero cryogenic pipeline applications, we offer customized low-temperature engineering services. By utilizing specialized low-temperature alloy steels, wide-temperature synthetic silicone lubricants, low-temperature fluorosilicone sealing O-rings, and intelligent thermostatic space heaters, the actuator reliably starts and operates at full torque at temperatures down to -40°C / -50°C without mechanical sluggishness or electronic display failure.

CONTROL MODE

External control

All actuator feedback signals-such as open/close limit switch dry contacts, open/close torque switch trip signals, motor thermal protection contacts, and continuous valve position feedback (0-1kΩ / 4-20mA)-are transmitted to external control cabinets, PLC, or DCS systems via field terminal blocks for full remote logic interlocking and centralized monitoring.

Integrated control

Actuators configured with integral control units (LP4 / LM4 / ICM1 / ICM2 / ICM3) integrate reversing contactors, control transformer, phase detector, auto-phase discriminator, and local selector switches directly inside the actuator enclosure. The ICM2 and ICM3 intelligent control modules incorporate a high-resolution LCD display and non-intrusive magnetic control switches, allowing complete on-site configuration, travel calibration, and real-time status diagnostics without opening the electrical housing cover.

Fieldbus

The integration of digital fieldbus communication modules (Profibus-DP, Modbus RTU, CANopen) replaces extensive multi-core hardwiring with standard two-wire communication cables. This significantly reduces cabling infrastructure and engineering costs while transmitting rich diagnostic data, preventive maintenance telemetry, operating cycle counts, and torque profiles directly to the master DCS asset management system.

Electric Actuator Technical Data

Table 1: ITQ Series Standard Performance & Electrical Specifications

Table 2: General Technical & Construction Specifications

Table 3: Available Options & Modular Control Configurations

Table 4: Actuator Dimensions & ISO 5211 Mounting Base Dimensions (mm)

Table 5: ITQ Electric Actuator Standard Selection & Valve Sizing Guide

COMPANY INTRODUCTION

Founded in 2014, Freya mainly deals in valves, actuators, electric valve actuators, electric valves and other fluid control products and services. It focuses on the process industry field and has long been committed to providing professional fluid control solutions for process industries such as electricity, steel, building materials, and water treatment. According to actual working conditions, through necessary field surveying and technical disclosure, it provides customers with safe, economical, and environmentally friendly selection and design, strictly supplies and guides installation and commissioning in accordance with contract requirements, and hands over for use when the standards are met. The company has always focused on improving its innovation capabilities, and has achieved a series of innovative results by increasing R&D investment and introducing technology. In the past few years, the company has successfully applied for non-invasive appearance patents and utility model patent certificates. These innovative achievements have improved the company's core competitiveness.

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