What is a flange and the types of flanges

What is a flange and the types of flanges

A pipe flange connects piping and components in a piping system by using bolted connections and gaskets. Common types of flanges include weld neck flanges, slip on flanges, blind flanges, socket weld flanges, threaded flanges, and lap joint flanges (RTJ flanges).

These connections allow for easy disassembly and separation for repair and maintenance. The most common specification for carbon steel and stainless steel flanges is ANSI B16.5 / ASME B16.5.

Metal flanges are widely used in industrial, commercial, and institutional applications, and they are available in a variety of styles and pressure classes, typically ranging from 150 to 2500 # rating. Certain flanges, such as weld neck flanges and socket weld flanges, also require specifying the pipe schedule to ensure the pipe bore matches the bore of the flange.

Characteristics Of Flanges

Flanges have accurately drilled holes for easy assembly.
They have controlled grain flow for optimal strength and stiffness.
To facilitate good welding, flanges are machined bevels.
For unrestricted flow when used for piping system, flanges are smooth and have accurate bore.
This component has spot-facing to ensure fastener seating stays true and square.

Leyon offers a wide variety of pipe flanges in carbon steel, stainless steel, and nickel alloy, including special flanges such as long weld neck flanges, special material requests, and high-yield pipe flanges.

Weld Neck Flanges
Weld neck flanges need to be shaft welded to be installed, just like lap flange joints. However, their reliability makes them a popular option for process pipes. They also perform excellently in systems with several repeat bends, making them ideal for high-temperature and pressure systems.

Weld Neck Flanges

Slip-On Flanges
Slip-on flanges are widely used and come in various sizes to support systems with increased flow rates and throughout. All you need to do is match the pipe’s outer diameter to the flange. The flange must be securely fastened to the pipe on both sides, which makes installation a little more technical.

Slip-On Flanges

Leyon is a professional manufacturing company focusing on machining prototypes and parts, including flanges and other components for fasteners. We maintain a high standard to provide many sectors with high-quality machining services at affordable costs. Our team and engineers are constantly available to receive your order and process it as quickly as possible, decreasing market time.


Post time: Jan-15-2024