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Your Professional Spring-return Damper Actuator Supplier

 

Xiamen Hysen Industrial Co., Ltd. is a well-established manufacturer located in Xiamen, Fujian. We specialize in designing, developing, and producing various types of valves. We strive to provide users with high-quality valve products and reliable after-sales service.


16 Years of Industry Experience
With over 16 years in floor heating systems and thermostats, we provide mature technology, stable product performance, and proven market reliability.

 

Strict Quality Control & Full Testing
All thermostats are produced under the ISO9001 system and fully tested before shipment, ensuring consistent quality and dependable performance for every order.

 

Integrated Manufacturing and Trading Capability
With our own production facilities and a dedicated trading team, we offer efficient communication, flexible order handling, and reliable supply for global customers.

 

 
 

Specification

 

 

Specification

HY-DFS05-24(S)

HY-DFS05-230(S)

Nominal Voltage

AC/DC 24V 50/60Hz

AC100–240V 50/60Hz

Voltage Range

AC/DC 19.2…28.8V

AC85…265V

Power Consumption

5W (Nominal), 3W (Holding)

5W (Nominal), 3W (Holding)

Torque

5Nm

5Nm

Applicable Damper Size

≤1m²

≤1m²

Manual Override

Not Available

Not Available

Rotation Angle

Max. 95°, adjustable

Max. 95°, adjustable

Running Time

<70s (Motor) / <20s (Spring)

<70s (Motor) / <20s (Spring)

Noise Level

≤45dB

≤45dB

Protection Class

Class III (Low Voltage)

Class II (Insulated)

Ingress Protection

IP54

IP54

Operating Temp.

-20…+50°C

-20…+50°C

Storage Temp.

-30…+80°C

-30…+80°C

Humidity Resistance

95% RH (Non-condensing)

95% RH (Non-condensing)

Shaft Length

≥90mm

≥90mm

Shaft Diameter

Ø10–16mm / 7x7–11x11mm

Ø10–16mm / 7x7–11x11mm

Weight

<1.9kg

<1.9kg

 

Spring-return Damper Actuator 3Nm ON_OFF

 

Advantages of Spring-return Damper Actuator

Reliability
Spring return actuators has higher reliability as compared to standard actuators. The build of the spring return actuators is mostly steel which makes it sturdy and durable. When there is a shortage in power in a case of fire, the spring return actuators will not fail because it made of mechanical spring instead of electronic components which allows it to automatically spring back to its fail-safe position without any electrical power supply.

 

Simplicity
Simplicity is one of a key factor of spring return actuators since the design is simple which makes installation and operation much easier as well as maintenance free. The likelihood of mechanical failure is relatively low because they have fewer components as compared to other complex actuators.

 

Security
Spring return actuators also provide a sense of security and protects your assets when there is an emergency. In an occurrence of a catastrophe such as fire, the spring return actuator works as a layer of protection to save life and minimizes damages. It prevents smoke/fire from going through the vents from one room to another.

 

Applications of Spring-return Damper Actuator
 

Fire Protection Systems

Spring return ensures smoke dampers automatically open or close during a fire, helping to contain smoke and protect evacuation paths.

Chemical Processing

If hazardous chemicals are involved, a power failure could be catastrophic. Spring return actuators automatically shut valves to prevent leaks or dangerous reactions.

Oil & Gas and Energy Sectors

In the event of a blackout or equipment failure, spring return actuators can isolate fuel flows, preventing spills, explosions, or environmental damage.

Water Treatment and Supply

Ensures consistent water flow or shutdown of pumps and valves when needed, even if control power is lost.

 

Installation Precautions for Spring-return Damper Actuators
 

Clean Environment

Mount indoors in dry, clean areas; use enclosures for outdoor use; avoid corrosive fumes.

Damper Check

Manually check the damper for smooth, free movement before mounting the actuator.

Anti-Rotation Strap

Securely attach to the damper frame or sleeve, not the duct, to allow for duct collapse.

Mounting

Ensure it's level and straight; allow for vertical float; don't overtighten to the housing.

Shaft Size

Verify the shaft diameter and length; use appropriate adapters if needed, ensuring sufficient shaft extension.

Spring-Return Direction

Determine the correct mounting orientation for desired clockwise (CW) or counter-clockwise (CCW) fail-safe rotation.

 

Spring-return Damper Actuator vs. Double Acting Actuator

 

 

Type of Application

Spring-return Damper Actuator

Double Acting Actuator

Torque & Thrust

For applications with torque load on one side of the piston

For applications with extreme torque load on both sides of the piston

Control

Up to 8-inch valves

High thrust applications with more than 10-inch valves

Safety

Extremely reliable and straightforward

Too complex for most safety applications

Last position

Valve returns to the open/closed position when the power supply is gone

Valve retains the last position when the power supply is gone

 

Ordering Process

 

 

1. Inquiry--- Provide us all clear requirements (total qty and package details).
2. Quotation--- Official quotation from with all clear specifications from our professional team.
3. Marking Sample --- Confirm all quotation details and the final sample.
4. Production--- Mass production.
5. Shipping--- By sea or by air.

 

Packaging and Shipping

 

 

Packaging

In standard export cartons, but could be designed as your request.

Shipping

Shipping by sea, by air, by express are acceptable. According to your requirements.

 

Our Factory

 

 

Xiamen Hysen Control Technology Co., Ltd. was established in 2008, with more than 16 years of experience in the field of floor heating systems and thermostat.

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Our Certificates

 

 

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FAQ

 

Q: How fast can bulk orders be delivered?

A: Typical lead time is 2–4 weeks, depending on order size and customization. We also stock popular models for fast shipment.

Q: Can I request samples before placing a bulk order?

A: Yes, we welcome international buyers to test samples before committing to large orders.

Q: What after-sales support do you provide for overseas buyers?

A: We offer remote technical assistance, spare parts supply, and fast response service to ensure long-term performance for international partners.

Q: Do you provide ODM/wholesale services for international brands?

A: Yes. As a professional China manufacturer, we support ODM branding, international distribution, and wholesale partnerships for global HVAC solution providers.

Q: What is the typical lifespan of this actuator?

A: While lifespan depends on operating cycle frequency and environmental conditions, our actuators are engineered for high durability and are typically rated for well over 100,000 cycles.

Q: What is your lead time for large wholesale or distribution orders?

A: For standard models, we can typically ship large orders within 15-20 days. Lead times for customized ODM projects will be confirmed based on the specific requirements.

We're well-known as one of the leading spring-return damper actuator manufacturers and suppliers in China. With over 15 years' experience, we warmly welcome you to buy discount spring-return damper actuator from our factory. All customized products are with high quality and competitive price.

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