Dampers and Louvers for Humidity Exhaust Systems

Product Specifications

Technical details and manufacturing context for Dampers / Louvers

Definition

Dampers and louvers are mechanical components used in humidity exhaust systems to regulate, direct, or block airflow. Their primary function is to control moisture removal, maintain pressure differentials, and ensure proper ventilation in industrial environments. These devices operate through adjustable blades or plates that rotate or slide to modulate airflow. They can be manually operated, motorized, or automated based on humidity sensors to maintain optimal environmental conditions. Common materials include galvanized steel, stainless steel, and aluminum, with stainless steel grades 304–316L available for corrosion resistance. Standard sizes for duct connection range from 100 to 2000 mm, and operating pressure is typically 1.0–1.6 MPa. Operating temperature ranges from -20 to 80 °C. Leakage rates are classified as Class A–C per ISO 5207, with values from 0.1% to 1.0%. Actuator torque requirements vary from 5 to 200 N·m. Control signals are analog 0–10 V DC, and supply voltage is 24 V AC/DC ±10%. Ingress protection ratings range from IP54 to IP65 for outdoor or washdown applications. Weight depends on size and material, ranging from 5 to 150 kg. These parameters are reference ranges and must be verified for the specific model and application. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Dampers and louvers control airflow by adjusting the angle or position of blades or plates. Manual operation uses a lever or hand wheel, while motorized versions use an actuator that receives a control signal (0–10 V DC) to position the blades. Automated systems may use humidity sensors to adjust airflow automatically. The blades rotate or slide to vary the open area, thereby modulating the volume of air passing through. This regulation helps maintain desired humidity levels and pressure differentials in exhaust systems. The actuator torque required depends on the size and resistance of the blades. Proper sealing minimizes leakage, and the ingress protection rating ensures suitability for the environment. Maintenance signals include increased leakage, unusual noise, or failure to respond to control signals. Failure boundaries include loss of actuator power, blade jamming, or corrosion of materials.

Common Materials

Galvanized steel, Stainless steel, Aluminum

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Size	100–2000 mm	Standard sizes for duct connectionISO 7805
Operating Pressure	1.0–1.6 MPa
Operating Temperature	-20–80 °C	Seat material limits range
Leakage Rate	0.1–1.0 %	Class A–C per ISO 5207ISO 5207
Actuator Torque	5–200 N·m	Required for damper blade movement
Control Signal	0–10 V DC	Analog control inputIEC 60381
Supply Voltage	24 ±10% V AC/DC	Standard actuator supplyIEC 60038
Ingress Protection	IP54–IP65	For outdoor or washdownIEC 60529
Material	304–316L	Stainless steel for corrosion resistanceASTM A240
Weight	5–150 kg	Depends on size and material

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Blade Assembly
Primary airflow regulation through adjustable angles

Material: Galvanized steel
Frame Part
Structural support and mounting interface to ductwork

Material: Galvanized steel
Seal Gasket Part
Prevents air leakage when damper is in closed position

Material: EPDM rubber
Actuator/Shaft
Mechanism for blade adjustment (manual lever or motorized actuator)

Material: Steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Humidity Exhaust System

View system integration details

Manufacturers of Dampers / Louvers

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Frequently Asked Questions

What materials are available for dampers and louvers?

Common materials include galvanized steel, stainless steel, and aluminum. Stainless steel grades 304–316L are available for corrosion resistance. The choice depends on the application environment and required durability.

What is the typical operating pressure and temperature range?

The operating pressure is typically 1.0–1.6 MPa, and the operating temperature ranges from -20 to 80 °C. These are reference ranges; always verify for the specific model and application.

How are these devices controlled?

They can be manually operated, motorized, or automated. Motorized versions use an actuator that receives a 0–10 V DC control signal. Automated systems may use humidity sensors to adjust airflow automatically.

What standards apply to these products?

Relevant standards include ISO 7805 for nominal size, ISO 5207 for leakage rate, IEC 60381 for control signal, IEC 60038 for supply voltage, and IEC 60529 for ingress protection. These are verification references, not certifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 kPa differential
flow rate:	0.1 to 50 m³/s
temperature:	-40°C to 150°C
slurry concentration:	Not applicable (air/gas only)

Dampers / Louvers

Product Specifications

Applied To / Applications

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