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Flexibility in Design: Rectangular elbows come in different angles, such as 45°, 90°, and variations thereof, allowing for precise direction changes in ductwork.
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Material Diversity: Available in aluminum, galvanized steel, and plastic, these elbows cater to different environmental and structural needs.
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Ease of Installation: Many rectangular elbows are pre-assembled with boot clips and button locks for easy snap-in installation, reducing labor time and complexity.
Understanding the different types of rectangular elbows can help in selecting the right component for your HVAC system. Here are some common types:
This type of elbow is crafted from zinc-coated 22-gauge aluminum, offering durability and resistance to corrosion. The Lambro 3-1/4 inch x 10 inch aluminum short way 90-degree rectangular elbow is a prime example, designed to create a 90-degree turn in rectangular stack duct runs. Its construction ensures minimal leakage and optimal airflow, making it ideal for kitchen ducts and venting applications.
Galvanized steel elbows, like those offered by Menards®, are known for their robustness and rust prevention capabilities. The 10" x 8" 90° flat angle elbow duct fitting is designed to change the horizontal direction of a rectangular duct run, utilizing Pittsburgh lock construction for enhanced durability. These elbows are particularly useful in larger duct systems where strength and longevity are paramount.
For applications requiring lightweight and versatile duct components, plastic elbows are an excellent choice. The Megaduct rectangular to round elbow provides a rotating offset spigot connection, allowing alignment with fixed appliances. Its rigid plastic construction ensures ease of handling and installation, making it suitable for residential and light commercial use.
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