Round damper blade

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This round damper blade is engineered to regulate air volume within duct systems, suitable for use as a positive shutoff or for automatic control in low‑leakage and modulating HVAC applications. Designed for ductwork with low to medium airflow velocity and static pressure, it installs directly inside the duct for precise adjustment of supply or return air.Manufactured from galvanized steel, the blade is available in sizes ranging from 4″ to 20″ (including 4″, 5″, 6″, 7″, 8″, 9″, 10″, 12″, 14″, 16″, 18″, and 20″), with material thickness options from 20GA to 28GA. Configuration choices include spring‑loaded or stamped bearings, stud, wing nut, washer, and handle for smooth operation and reliable positioning.Produced through precision stamping, this round damper blade is ideal for commercial, industrial, and residential round ductwork systems requiring dependable airflow regulation. Custom sizes and OEM configurations are available upon request.

Material: Galvanized steel

Size : 4”-20”(4”, 5”, 6”, 7”, 8”, 9”, 10”, 12”, 14”, 16”, 18”, 20”)

Thickness: 20GA,22GA,24GA,26GA,28GA

Configuration: Spring loaded bearing, stamped bearing, stud, wing nut, washer, handle

Shape: Round

Technical: Stamping

Application : Used in the round ductwork system for adjusting supply or return air volume

OEM SERVICE

Custom Packaging

ISO 9001

SGS

Parameter

Description

Ruichi Hardware is specialized in the production and sales of HVAC accessories series products and has attended AHRI exhibitions many times in the United States. There are 200 types of products in production and sales. That including damper blade, regulator, access door, duct corner, G clamp and other accessories. The following different styles of access doors are available for selection.

Production

Packaging

Entire Line

Ruichi Hardware is specialized in the production and sales of HVAC accessories series products and has attended AHRI exhibitions many times in the United States. There are 200 types of products in production and sales. That including damper blade, regulator, access door, duct corner, G clamp and other accessories.

Service Team

Sales Team

Provide 3-6 person service teams based on customer tier.

Reaponse Time: Provide responses within 30 minutes to 2 hours based on customer tier.
Quotation Speed: 4 hours for five major product series; 48hours for customized series.

Technical Team

Provide technical services and support by engineers/engineering directors based on customer tier.
Provide product design, mold design, technical drawings, technical consultation, Q&A and other services based on customer tiers.
Proactively sharing real-time updates on industry advancements and offering professional guidance on trends and product enhancements.