Plain Seam-Welded Ducts SRGL | Class D Airtight HVAC
SRGL
Plain Seam-Welded Ducts - SRGL Series
The SRGL series of plain seam-welded ducts offers a robust and highly efficient solution for modern HVAC systems. Manufactured with a longitudinal resistance seam weld, these ducts provide a smooth internal surface, making them a superior alternative to spiral ducts in applications where minimizing air resistance and noise is a priority.
Like all premium Alnor ductwork, the SRGL series is engineered to meet the highest standard of Class D air tightness according to EN 12237. This certification ensures a leak-free system, contributing directly to energy savings and optimal performance. They are an ideal choice for a wide range of commercial and industrial ventilation projects.
Key Features & Benefits for Installers and Engineers
Certified Class D Air Tightness: Guarantees the highest level of system integrity, preventing energy loss and ensuring that the designed airflow reaches its destination.
Smooth Internal Surface for Optimal Airflow: The absence of a spiral seam reduces air resistance (pressure drop) and minimizes noise generation, leading to a more efficient and quieter HVAC system.
Robust Seam-Weld Construction: The longitudinal seam weld provides excellent strength and rigidity, ensuring the duct maintains its shape during transport, installation, and operation.
Versatile Material Options: Available in both galvanized and stainless steel, allowing for use in standard commercial applications as well as environments with higher humidity or hygiene requirements.
Standardized Lengths: Produced in convenient 1-m or 0.5-m sections for easy planning, transportation, and on-site handling.
Construction & Available Materials
The SRGL series is designed for reliability and performance, with material options to suit specific project needs.
Material options and applications for SRGL series ducts
Product Code
Material
Available Sheet Thickness (mm)
Primary Application
SRGL-...
Galvanized Steel
0.5 / 0.6 / 0.7 / 0.8
General-purpose ventilation and air conditioning systems.
SRGL-K-...
1.4301/304 Stainless Steel
0.5 / 0.7
Kitchens, food processing, humid areas, and light corrosive environments.
