Hvac Flexible Duct Support

The supports need to be at the manufacturer s recommended spacing but no longer than 4 maximum.

Hvac flexible duct support. The straps that hold up the flex duct need to be no less than 1 5. A comprehensive duct layout indicating sizes design airflows pressure class and routing of the duct system. Telescoping speedi hanger duct supports model ac sdh 12 4 32 4 32. Flexible fiberglass wool duct is a popular choice for residential and commercial heating and cooling.

Webbing strap duct hanger metal strapping master flow straps hangers ceiling support box flex hose for ac. But this versatile duct is often susceptible to kinks and sags that restrict air flow. Ductwork and supports shall conform to the hvac duct construction standards metal and flexible second edition 1995. The types of fittings to be used based on the designer s calculations of fitting losses i e square versus 45 entry taps conical versus straight taps etc.

Where fittings of configurations not shown in the hvac dcs are shown on the contract drawings they shall be constructed as though they were therein. But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b. Flexible duct can degrade over time. Flexible duct known as flex duct is very convenient ducting for attaching supply air outlets to rigid trunk ductwork and in many cases flex duct comprises the entire duct system.

The ds3 is a plastic load distributing support used to quickly and easily suspend flex duct without kinking while keeping it fully expanded for maximum airflow. The benefits of the duct saddle strapping system include low cost fast and easy installation with no tools required increased system efficiency extended life of your hvac unit. The malco fds1 flexible duct support eliminates air flow restrictions and increases efficiency to dramatically reduce utility bills and improve heated or air. To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for.

Sometimes the best route for a flexible duct run is up and over an obstruction. Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct. Flexible duct needs to be larger than pipes to allow the same amount of airflow. It collects dust and is almost impossible to clean.

Hvac ducting accessory model 0507 0000 0002 18 75 bag. Bob s not a fan of flexible heating ductwork. Flex duct made for hvac applications is typically constructed of a plastic inner liner attached to a metal wire helix or coil to make round flex duct. There s no question that flexible duct is easier to install than metal ductwork but consider this.

Item 1790033 model 1790033.