VariTrane Duct DesignerVariTrane Duct Designer 
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VariTrane Duct Designer (Ductonly32.exe). This is a duct design application that helps you optimize your designs while maintaining a minimum pressure system.
Streamline your duct design process with VariTrane Duct Designer, an advanced toolset for creating and adjusting duct systems for pressure-based applications. This versatile software provides an environment for configuring the size, model, and layout of supply components, with optional friction and fitting loss calculations to enhance design accuracy.
VariTrane Duct Designer is a comprehensive solution for professionals looking to optimize their HVAC system designs while ensuring efficient pressure management. The program consists of three powerful applications: the Duct Configurator, which helps you model and size duct systems; the Ductulator, for quick component sizing and determining the optimal nominal duct size based on equal friction methods; and the Fitting Loss Calculator, which helps you select the best fittings by comparing efficiency and cost for each duct section.