SpiroFlex RED250/200-OC Galvanized Steel Nipple Reducer 250/200 mm

The SpiroFlex RED250/200-OC is a professional-grade galvanized steel nipple reducer engineered for seamless integration into ventilation and HVAC systems. This component is specifically designed to facilitate a precise transition between circular air ducts with diameters of 250 mm and 200 mm, ensuring structural integrity and consistent airflow throughout the ductwork.

Advantages

Constructed from high-quality galvanized steel, this nipple reducer offers exceptional resistance to corrosion and mechanical wear, making it a reliable choice for long-term ventilation projects. Its precise manufacturing ensures a tight, secure fit within standard spiral ducts, which minimizes air leakage and reduces energy loss. The smooth internal surface promotes efficient air movement, helping to maintain optimal system performance and quiet operation in both residential and commercial environments.

Suitable for

• Connecting ventilation ducts of different diameters
• Residential HVAC system installations
• Industrial air handling and exhaust systems
• Retrofitting or expanding existing ductwork

This reducer may not be suitable for applications involving highly corrosive chemical vapors or extreme temperature environments that exceed the thermal limits of galvanized steel. It is also not intended for use in high-pressure pneumatic conveying systems where specialized heavy-duty fittings are required.

Key specifications

• Material: Galvanized steel
• Connection type: Nipple (male)
• Primary diameter: 250 mm
• Secondary diameter: 200 mm
• Compatibility: Standard circular ventilation ducts

How to use

To install the SpiroFlex nipple reducer, insert the smaller end into the 200 mm duct and the larger end into the 250 mm duct. Ensure the connection is fully seated to maintain structural stability. It is recommended to secure the joints using self-tapping screws or rivets and to seal the connections with professional-grade duct tape or sealant to prevent air leakage and ensure system airtightness.

What to consider before purchase

• Verify the exact diameter requirements of your existing ductwork
• Ensure the nipple connection type matches your current duct configuration
• Check for sufficient clearance space in the installation area
• Consider the need for additional sealing materials for airtight connections

Usage recommendations

Regularly inspect the duct connections for signs of vibration or loosening during routine maintenance to ensure the long-term efficiency of your ventilation system.