Quarter-Turn Electric Actuator

Quarter-Turn Electric Actuator is an electric device that controls valves through precise 90° rotation for flow regulation in industrial automation systems

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Product Description

In automatic control systems, the quarter-turn electric actuator rotates 0°～90° to drive the valve and control its opening according to changes in the signals from the regulating instruments.

Powered by alternating current or direct current, it directly receives digital signals, 4-20mADC or 1-5VDC standard analog signals output by computers or instruments, enabling intelligent control and precise positioning of electric valves.

The electric actuator and its accessories feature double limit, overload and overheating protection, with good safety performance. A variety of full-stroke time speeds are available.

The quarter-turn electric actuator is compatible with various quarter-turn valves (ball valves, butterfly valves, plug valves, etc.) and together with the valves forms industrial automatic control electric valves such as electric control valves, electric ball valves, and electric butterfly valves.

Product Structure

Electric actuators comprise a drive motor, reduction mechanism, transmission mechanism, and control part. The drive motor, including AC (simple, easy to maintain, for general use) and DC (good for speed control, for high - precision work), converts electricity to mechanical power. The reduction mechanism, such as gear (efficient, compact) or worm gear (large ratio, self - locking), slows motor speed and boosts torque. The transmission mechanism, like screw (for linear motion) or crank - link (for reciprocating valves), transfers torque to controlled objects. The control part's controller receives signals to precisely regulate the actuator.

As Featured In

Power Supply

AC 220V

High efficiency

low power consumption, high torque

Torque

20~2000NM

Ingress Protection

Dustproof and waterproof with an IP67 rating

Accuracy

Hysteresis<0.5%

Dead Zone<0.5%

Feedback Error<0.5%

Valve Adaptable

0~90°

ball valve

butterfly valve

I/O

4-20mA

0-10V

Modbus

Optional Function

Dehumidification and heating

Passive contact switch

Over-torque protection

Grat Original Auto-Electric Valve Actuator

Model Representation Method

Electric Actuator
Model		EA-50	EA-100	EA-200	EA-400	EA-600	EA-1000	EA-1600	EA-2500
Output Torque		50N·m	100N·m	200N·m	400N·m	600N·m	1000N·m	1600N·m	2500N·m
Recommended Valve Adaptation	Ball Valve	DN25-40	DN50-65	DN65-80	DN80-100	DN125-150	DN200-300	DN300	DN400
Recommended Valve Adaptation	Butterfly Valve	DN32-50	DN50-125	DN150-200	DN200-250	DN300	DN400-600	DN600	DN700-800
Action Time		15S/30S	15S/30S	15S/30S	30S	45S	30S	48S	60S/75S
Rotation Angle		0-90° 0-360°	0-90° 0-360°	0-90°	0-90°	0-90°	0-90°	0-90°	0-90°
Motor Power	AC220V	10W	25W	40W	90W	90W	210W	210W	220W
	AC380V	6W	15W	30W	40W	40W	300W	300W	320W
	DC24V	13W	25W	35W	70W	70W	0	0	0
Rated Current	AC220V	0.16A	0.32A	0.35A	0.54A	0.64A	0.96A	0.98A	1.03A
	AC380V	0.07A	0.10A	0.15A	0.29A	0.29A	0.45A	0.46A	0.48A
	DC24V	1.28A	2.03A	3.57A	5.13A	6.04A	0	0	0
Motor Life	AC220V/380V	S2 duty cycle, service life ≥100,000 hours
Motor Life	DC24V	lifetime 600 hours, ultimate 2000 hours
Weight		2.5kg	3.5kg	8kg	8.5kg	9kg	20kg	21kg	22kg
Power Supply		AC 110V, AC 220V, AC 380V, DC 24V, DC 220V (selectable)
Accuracy		Backlash≤0.5% Dead Zone≤0.5% Feedback Error≤0.5%
Insulation Resistance		100 MΩ at 500 V DC
Withstand Voltage		1,500 V AC for 1 minute
Protection Rating		IP67
Limit Components		■ Electric operation: Full open/close limit switches ■ Manual operation: Mechanical stops
Protection Device		Overheat protector (auto-resetting type)
Installation Orientation		360° adjustable
Electrical Interface		M20×1.5 waterproof cable glands×2 (1 for power cable, 1 for signal cable)
Ambient Temperature		Standard: -30℃ to 60℃ ▲High-temperature type: -50℃ to 125℃
Testing Standard		JB/T8219-2016

Circuit Diagram

Stainless Steel Bracket

Shaft Bushing Adapter

Power-Off Reset Module

Electric Actuator Position Transmitter

Electric Actuator Control Module

PTC Heater

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The inner layer uses bubble wrap, and the outer layer is packaged with a cardboard box and a wooden case.

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Dedicated technical consultants for one-on-one support for every customer.

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The product can be transported via sea, air, or rail.

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Electric

IoT Mini

Explosion-proof

Pneumatic