Expander Flange
An Expander Flange is a type of weld neck pipe flange used to increase pipe size at the flange connection (see sketch).
The Expander Flange is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange.
An Expander Flange is a type of welding neck pipe flange used to increase pipe size at the flange connection (see sketch). Expander flanges are also known as a cost effective alternative to using a separate reducer-welding neck flange combination.
Expander Flange
Expander flanges are also known as a cost effective alternative to using a separate reducer-welding neck flange combination. The expander flange is available in a range of sizes and materials.
An expander flange is similar to a Weld Neck Flange but with the hub expanding to a larger size (one or two sizes). If you have limited space or just need to connect to a larger pipe size, it provides a convenient way for equipment, pumps and valves. It can replace the use of a flange and reducer. Pressure ratings and dimensions are in accordance with ANSI/Asme B16.5.
Dimensions of Expander Flanges
It`s compact size saves space when compared to a reducer-welding neck flange. This flange has a raised face.
Only one butt-weld is needed to install the Expander Flange Very cost effective and competitively priced.
The expander flange can be used to connect pipe to pumps, compressors and Valves.
- Expander Flanges are used in Chemical and petrochemical processing.
- Expander Flanges are used in electronics. Expander Flanges are used in processing equipment for maintaining product purity in handling foods, synthetic fibers.
- Expander Flanges are used in marine and offshore engineering.
- The expander flange is available in a range of sizes and materials.
Packing:
At Bangdong will be Forged Steel Pipe Fitting,special Expander flanges with plastic cover to ensure the integrity of sealing surface. Bubble bag, then put in to export wooden neatly in to products during transportation to prevent bumps , scratches and other situations encountered or as per customer requirement.
Surface Treatment:
Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
A steel flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.
Forged Pipe Fittings also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Pipe flanged joints are made by bolting together two flanges with a Gasket between them to provide a seal.
Materials for Flanges
Pipe flanges are manufactured in all the different materials like stainless steel, cast iron, aluminium, brass, bronze, plastic etc. but the most used material is forged carbon steel and have machined surfaces.
In addition, flanges, like fittings and pipes, for specific purposes sometimes internally equipped with layers of materials of a completely different quality as the flanges themselves, which are "lined flanges".
The material of a flange, is basically set during the choice of the pipe, in most cases, a flange is of the same material as the pipe.
All flanges, discussed on this website fall under the ASME en ASTM standards, unless otherwise indicated. ASME B16.5 describes dimensions, dimensional tolerances etc. and ASTM the different material qualities.
Product Categories : Steel Flange > Weld Neck Flange
