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Why Does an Electric Actuator Overheat During Operation?
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A fail-safe focused electric actuator built for critical process applications, the HUSR series uses mechanical spring return to secure valve or damper positioning during power loss, ensuring process safety and equipment protection in industrial systems.
HUS series spring return electric actuator is designed for fail-safe positioning of valves or dampers upon loss of supply voltage. Mechanical spring return design is used to position controlled devices to either fully open or fully closed positions without any external power source.
| 1. Product Construction Compact and designed for small spaces. |
 |
4. Secure Operation Under critical conditions, this product provides excellent guaranteed stability with mechanical solutions. The spring return electric actuator generates the required torque through an energy storage mechanism for returning to a safe position with no assistance during the spring return operation process. |
| 2. Low Maintenance Durable, hassle-free operation. Spring effectively drives a 90°full stroke. The emergency on/off model employs a mechanical buffer without impacting pipes. |
5. Position Detection Stroke control switch with quick setup and reliability. A three-dimensional indicator can be monitored in multi angles. Optional with switching value and analog quantity control. |
|
| 3. Secure And Stable Spring return electric actuator complies with SIL2/SIL3 standard regulations and is maintenance-free with anti-explosion applications. |
6. Adaptive Connection Parts Actuator flange and drive sleeves comply with ISO5211 standards. A versatile design that offers its replacement. |
| NO. | Part Name | Material | NO. | Part Name | Material |
| 1 | Upper Cap | ADC12 | 11 | Space Heater | Ceramic |
| 2 | Body | AL104 | 12 | Electrical Motor | Integrated Set |
| 3 | Side Cap | ADC12 | 13 | Adjustment Cam | ADC12 |
| 4 | Connection Lock | Nylon | 14 | Microswitch | Integrated Assembly |
| 5 | Safety Spring | Spring Steel | 15 | Mounting Retaining Plate | Q235 |
| 6 | Piston | ADC12 | 16 | Output Shaft | 45# Steel |
| 7 | Spacing Block | 45# steel | 17 | Locating Bearing | Bearig Steel |
| 8 | Driving Gear | 40CR | 18 | Position Indicator | Nylon |
| 9 | Display Window | Tempered Glass | 19 | Capacitor | Composite Material |
| 10 | Wiring Terminal | Flame-retarded Nylon | 20 | Brake | Integrated Set |
|
Parameter |
Specification |
Parameter |
Specification |
|
Power Supply |
24VDC、110VAC-120VAC 50/60Hz、220VAC-240VAC 50/60Hz |
Pointer Dial |
For valve position indication, it will rotate with the valve |
|
Motor |
DC motor |
Space Heater |
2~4w Anti-Condensation |
|
Limit Switches |
Mechanical Limiter + Electrical Limiter |
Cable Conduit |
NPT1/2 |
|
Stall Protection |
Built-in overheat protector |
Lubrication |
grease |
|
Travel Angle |
90° |
Shell |
Aluminum alloy, anodized and coated with polyester powder |
|
Ambient Temp. |
-20°C~+60°C(-4°F~140.00°F) |
|
|
|
Model |
Spring End Torque (N.m) |
Spring End Torque (In. lbs) |
Power (W) |
Running Time (Sec) |
Return Time (Sec) |
Running Current (24VDC) |
Running Current (110VAC-120VAC) |
Running Current (220VAC-240VAC) |
Weight (Kg) |
|
HUS2 |
40 |
353 |
23 |
15 |
7 |
4A |
1A |
0.5A |
8 |
|
HUS3 |
90 |
885 |
36W |
15 |
7 |
2.8A |
0.7A |
0.34A |
18 |
|
HUS4 |
300 |
2655 |
131W |
15 |
7 |
9.6A |
2.3A |
1.2A |
31 |
|
HUS5 |
420 |
3717 |
150W |
15 |
7 |
11A |
2.7A |
1.4A |
44.5 |
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