Purpose: It allows for a smooth change in pipe size, which is essential in various piping systems where different sizes are needed for different sections or components.

Design: Reducing flanges typically have a tapered or stepped design to accommodate the change in diameter. They are available in various materials, including steel, stainless steel, and plastic, depending on the application.

Types:

• Concentric Reducing Flange: The centerline of the smaller diameter is aligned with the centerline of the larger diameter, which maintains a consistent flow direction.
• Eccentric Reducing Flange: The smaller diameter is offset from the centerline of the larger diameter, which helps in preventing air pockets in horizontal pipelines.

Applications: Common in industries like oil and gas, water treatment, and HVAC systems, where pipes of different sizes are frequently encountered.

Installation: When installing reducing flanges, it’s crucial to ensure proper alignment and secure bolting to prevent leaks and maintain the integrity of the pipeline system.