Round dial regulator

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This round dial regulator is designed for precise manual control of damper blades in round ductwork systems. It features a reinforced steel handle with a thickness of 1.0 mm, available in two weight options: 28g and 64g. The handle is offered with square drive holes of either 1/4″ (6×6 mm) or 3/8″ (9×9 mm) to fit standard damper shafts.Constructed from galvanized steel, zinc‑plated steel, or stainless steel, the regulator includes a steel round frame (1.0 mm thickness) and is composed of a handle, washer, and wing nut for secure attachment and smooth operation. A zinc‑coated finish provides reliable corrosion resistance.Ideal for HVAC balancing, ventilation control, and airflow adjustment in commercial and residential systems, this regulator ensures consistent performance and easy installation. OEM customization in material, size, and configuration is available.

Material : Galvanized steel /Zinc plated steel/Stainless steel

Weight : 28g/64g

Reinforce handle thickness: 1.0mm

Hole size: Square 1/4” (6*6mm)/3/8” (9*9mm)

Surface treatment: Zinc coated

Composition: Handle，Washer，Wing nut

Steel round frame thickness: 1.0mm

OEM SERVICE

Custom Packaging

ISO 9001

SGS

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.