Stainless Steel Ducting SPR-K - Class D - Spiral Ducts
SPR-K
Stainless Steel Spiral Ducts - SPR-K Series
The SPR-K series of stainless steel spiral ducts represents the ultimate solution for HVAC systems operating in demanding, corrosive, or high-humidity environments. These ducts are engineered to provide exceptional longevity and structural integrity where standard galvanized steel is insufficient. By combining high-grade stainless steel with a precision manufacturing process, the SPR-K series delivers a ductwork system that is both durable and highly efficient, meeting the highest air tightness standard, Class D.
This makes them the primary choice for engineers and installers designing ventilation systems for commercial kitchens, swimming pools, laboratories, and industrial processing plants.
Key Features & Benefits for Installers and Specifiers
Superior Corrosion Resistance: Specifically designed to withstand aggressive environments, preventing rust and degradation from moisture, chemicals, salt, and high heat.
Certified Class D Air Tightness: All SPR-K ducts meet the stringent requirements of EN 12237 Class D, ensuring minimal air leakage. This translates to greater energy efficiency, lower operating costs, and improved system performance.
Enhanced Rigidity and Vacuum Strength: The spiral seam construction provides inherent strength. For ducts with a diameter of 250 mm or greater, external corrugations (ribs) are added as a standard feature, significantly increasing stiffness and resistance to deformation under negative pressure.
TÜV Rheinland Certified Quality: This product is certified by a leading independent authority, guaranteeing that it meets the highest standards of manufacturing quality, safety, and performance.
Comprehensive System: SPR-K ducts are part of a complete ductwork system. A full range of compatible stainless steel fittings is available to ensure consistent material integrity throughout the installation.
Material Grades Explained: Choosing the Right Protection
Selecting the correct grade of stainless steel is critical for the long-term success of a project. The SPR-K series is available in two primary grades to match specific environmental challenges.
Stainless steel grades and applications for SPR-K series ducts
