SpiroFlex elbow 45° for 80 mm duct SpiroFlex 80 turbo (nv) model SX-TJNV80KS45

SpiroFlex elbow 45° for 80 mm duct SpiroFlex 80 turbo (nv) model SX-TJNV80KS45 is a circular metal ventilation elbow designed to create a compact 45-degree change of direction in 80 mm round duct systems. Engineered for use with SpiroFlex 80 turbo (nv) series components, this elbow provides a controlled bend that helps maintain airflow continuity while minimizing turbulence and associated pressure loss in residential and light-commercial HVAC installations.

Advantages

The 45° elbow offers a smooth internal profile that reduces flow disturbance compared with sharp turns, contributing to more consistent air distribution and lower fan energy consumption. Its precisely formed circular geometry ensures secure connections to 80 mm round ducts and SpiroFlex 80 turbo (nv) fittings, enabling reliable mechanical fit and sealing. Constructed from metal suitable for ventilation use, the elbow is compact for installations in constrained spaces and compatible with common ductwork assembly techniques.

Suitable for

• Residential mechanical ventilation systems with 80 mm round ducts
• Light-commercial ventilation runs requiring a compact 45° turn
• Retrofit or new-build HVAC layouts where space is limited
• Connections between SpiroFlex 80 turbo (nv) components in circular duct networks

Key specifications

• Nominal duct diameter: 80 mm round
• Angle: 45° change of direction
• Material: formed metal suitable for ventilation ducting
• Compatibility: designed for use with SpiroFlex 80 turbo (nv) circular system components
• Profile: smooth internal curvature to reduce turbulence and pressure loss
• Form factor: compact elbow for tight installation spaces

How to use

Position the 45° elbow between two lengths of 80 mm circular duct or directly to compatible SpiroFlex 80 turbo (nv) fittings, ensuring mating ends are fully seated. Secure joints using appropriate clamps, crimped collars, or industry-standard sealing methods and apply duct sealant or tape where airtight connections are required. Verify alignment and support the assembly as needed to avoid strain on connections. After installation, inspect for gaps and perform an airflow check to confirm reduced turbulence and proper directional flow.

Usage recommendations

For best performance, avoid combining multiple tight bends in a short run and prefer gradual transitions where possible. Use recommended sealing and support practices for 80 mm circular ductwork to maintain system efficiency and reduce noise. When integrating into a balanced ventilation design, consider the elbow’s pressure drop in fan and HVAC calculations.