The Manual Rectangular Duct Damper is a high-quality airflow control component designed for modern HVAC and ventilation systems. With precise blade adjustment and durable construction, it ensures accurate air volume regulation while maintaining system efficiency. This damper is widely used in commercial, industrial, and civil projects, playing a critical role in air purification and central air conditioning systems. Engineered with strength and performance in mind, it provides long-term reliability and seamless integration into ventilation networks. Shandong Wanneng Group manufactures these dampers to meet international standards, delivering both functionality and durability.

Detailed Description

The manual rectangular duct damper is a robust and service-focused solution for regulating airflow in HVAC systems. Built from cold-rolled steel with a tensile strength of 400–550 MPa, it offers exceptional resistance against stress, deformation, and corrosion. Advanced processes such as laser cutting, precision bending, and seamless welding ensure airtight performance, with air leakage reduced by up to 20% compared to traditional designs.

Operation is simple yet precise, with adjustable blades allowing manual control of airflow to meet specific system requirements. This ensures stable indoor environments, efficient energy use, and optimal comfort in different spaces. The damper’s durability allows it to withstand harsh environmental conditions, including high temperatures, humidity, and vibrations, making it suitable for long-term use in commercial and industrial applications. With its superior material strength and airtight construction, it delivers both reliability and cost-effectiveness over its extended service life.

Technical Specifications

Key Features & Benefits

The Manual Rectangular Duct Damper is designed to deliver performance, safety, and long-term value in demanding environments. Its seamless welded structure ensures airtight operation, preventing leaks and maintaining system efficiency. The advanced cold-rolled steel material enhances durability, while the galvanized finish provides reliable corrosion resistance.

• Seamless Welding: Ensures accurate airflow adjustment with ±3% precision.

• Superior Air Tightness: Achieves up to 99% efficiency, reducing air leakage significantly.

• Durability: Built from high-strength cold-rolled steel for long-lasting performance.

• Corrosion Resistance: Galvanized finish extends service life in harsh environments.

• Energy Efficiency: Optimizes airflow distribution, reducing overall energy costs.

Applications & Use Cases

The manual rectangular duct damper is suitable for a wide range of ventilation systems, offering reliable air control across multiple sectors. Its precise adjustment capabilities make it essential for projects where airflow balance and energy efficiency are critical.

• Commercial Buildings: Maintains stable indoor air distribution in offices and malls.

• Healthcare Facilities: Provides accurate airflow control for cleanroom and hospital environments.

• Industrial Plants: Ensures efficient ventilation in factories and production units.

• Residential Projects: Improves comfort and air quality in central air conditioning systems.

• Hospitality Sector: Guarantees guest comfort by optimizing airflow in hotels and resorts.

FAQs

Q1: What is a manual rectangular duct damper used for?

A manual rectangular duct damper is used to regulate airflow in HVAC and ventilation systems, ensuring efficient air distribution.

Q2: How long does a manual rectangular duct damper last?

With durable cold-rolled steel construction, a manual rectangular duct damper can last over 20 years with proper maintenance.

Q3: Is the manual rectangular duct damper resistant to corrosion?

Yes, it is galvanized or coated to provide strong corrosion resistance, even in challenging environments.

Q4: How does the manual rectangular duct dampers improve air quality?

It allows precise airflow control, ensuring balanced ventilation and preventing over- or under-ventilation in spaces.

Q5: Can a manual rectangular duct damper be used in residential projects?

Yes, it is suitable for both residential and commercial HVAC systems, including central air conditioning.