Quick-Opening Electric Actuator

This quick‑opening actuator is engineered to open and close valves at high speed. It completes the full 0‑90° stroke within 3 to 8 seconds. Perfect for emergency shut‑off and rapid‑response control tasks, it is built to be highly reliable and deliver extended service life.

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Product Description

The EA‑series fast‑switch electric actuators deliver single‑action full‑stroke (0‑90°) full‑open operation in just 4 seconds. Built to meet fast‑switch demands for ball valves, butterfly valves and other partial‑turn electric on‑off valves.

Well‑suited for high‑pressure environments and large pressure‑drop conditions, these actuators excel in rapid switching applications where solenoid valves cannot perform. They pair seamlessly with ball valves, V‑port control valves, butterfly valves, ventilation dampers, fans, dynamic balancing valves, plug valves, rotary valves, and other industrially‑used rotary mechanical positioning systems.

Product Structure

Electric actuators feature four core components: drive motor, reduction gearing, transmission assembly and control unit.

AC motors are low‑maintenance for general applications; DC motors deliver reliable speed control for high‑precision work, converting electricity into mechanical power.

Reduction gearing reduces speed and raises torque. Gear units are compact and efficient, and worm‑gear types come with self‑locking for high reduction ratios.

The transmission assembly passes torque to equipment for linear or reciprocating valve movement. The control unit reads signals to precisely adjust actuator performance.

Hot Sale 4 Second Quick Switch Electric Actuators Application in Boats 1

As Featured In

Power Supply

AC 110V / 220V / 380V
DC 12V / 24V

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

Quick-Opening Electric Actuator
Output Torque		10N·m	20N·m	50N·m	75N·m	100N·m	200N·m	500N·m
Recommended Valve Adaptation	Ball Valve	DN15	DN20	DN25-32	DN40	DN50-65	DN80-100	DN125-200
Recommended Valve Adaptation	Butterfly Valve	DN40	DN50-65	DN80-100	DN125	DN150	DN200	DN250-300
Action Time		3S/4S/6S	3S/4S/6S	4S/6S	6S/8S	6S/8S	6S/8S	8S
Rotation Angle		0-90°	0-90°	0-90°	0-90°	0-90°	0-90°	0-90°
Motor Power	AC220V	10W	25W	40W	90W	90W	120W	140W
	AC380V	6W	15W	30W	40W	40W	90W	120W
	DC24V	13W	25W	35W	70W	70W	0	0
Rated Current	AC220V	0.16A	0.32A	0.35A	0.54A	0.64A	0.96A	1.03A
	AC380V	0.07A	0.10A	0.15A	0.29A	0.29A	0.45A	0
	DC24V	1.28A	2.03A	3.57A	5.13A	3.04A	0	0
Weight		2.5kg	3.5kg	8kg	8.5kg	9kg	20kg	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

Dimension drawing

10N·m

20N·m

50N·m/100N·m

200N·m

500N·m

Circuit Diagram

S

Switching Action Mode：Switching operations (open/close) are achieved via AC switching signals, and a set of active position signals indicating fully open/fully closed status are output.

MS

Switching Action Mode: Outputs passive contact signals. Structure：Equipped with two intermediate position switches.

PIU

Switching Action Mode: Outputs 0~1000Ω feedback signal. Structure: Equipped with 500Ω or 1kΩ potentiometer.

CPT

Switching Action Mode:
Outputs 4~20mA valve position feedback signal. Structure: Equipped with 1kΩ potentiometer and R/I converter.

PCU

Regulating Action Mode:Accepts 4~20mA control signal input and outputs 4~20mA valve position feedback signal. Structure: Integrated with 1kΩ potentiometer and control module (servo amplifier).

G

DC switching signals are output from the circuit via an external DC power supply to control the opening/closing program, and a set of passive contact signals corresponding to fully open/fully closed positions are provided.

SP

Switching Action Mode:
Controls valve opening angle via switching circuit, corresponding to potentiometer resistance value, while enabling intermediate position control function. Structure: Integrated with potentiometer and intermediate position switch.

H

Three-phase AC switching signals are output through an external three-phase power phase-reversing circuit to control opening/closing operations, accompanied by a set of passive contact signals for fully open/fully closed position indication.

Quick-Opening Electric Actuator

Tags

Product Description

Product Structure

As Featured In

Power Supply

High efficiency

Torque

Ingress Protection

Accuracy

Valve Adaptable

I/O

Optional Function

Model Representation Method

Dimension drawing

10N·m

20N·m

50N·m/100N·m

200N·m

500N·m

Circuit Diagram

S

MS

PIU

CPT

PCU

G

SP

H

Documents & Drawings:

GRAT-Quick Opening Electric Actuator Selection Manual

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Frequently Asked Questions

IoT Series

Electric Series

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Pneumatic Series