Where to buy flange

You can go to the website: www.yaang.com to buy flange.

Yaang Pipe Industry Co., Limited (www.yaang.com) offers a wide range of flanges, pipe flanges, tube flanges,based on guaranteed quality. Common production as world standards include ASA/ANSI (USA), PN/DIN/EN (European), BS10 (British/Australian), BS4504 (British/Australian) and JIS (Japanese). Yaang's flanges are made by forging or casting according to clients’ request. Further, the industrial flanges in each standard are divided into pressure classes, allowing flanges to be capable of taking different pressure ratings. These pressure classes also have differing pressure and temperature ratings for different materials.

Yaang's flange faces are also made to standardized dimensions and are typically flat face (FF), raised face (RF) or ring joint (RJT) styles.  Flange designs are available as weld neck flange (WN), slip-on flange (SO), lap joint flange (LJ), socket weld flange (SO), threaded / screwed flange (TH), blind flange (BL), plate flange (PL), orifice flange, orifice plate, spectacle blind, spectacle flange, blind spacer and also blank.

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. 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.

Dimensions of Flanges

Each flange according to ASME B16.5 has a number of standard dimensions. If a draftsman in Japan or a work preparer in Canada or a pipefitter in Australia is speaking about a Welding Neck flange NPS 6, Class 150, Schedule 40 ASME B16.5, then it goes over the flange which in the image here below is shown.

If the flange is ordered, the supplier want to know the material quality. For example ASTM A105 is a forged carbon steel flange, while A182 is a forged stainless steel flange.

Measure the size of a flange

At some point, with all the possibilities of thread form, diameter, and pitch, you need to send it off to SK Grimes or another machinist. You could buy the thread pitch gauges and comparator and thread micrometer (to measure minor diameter) to fully define the thread, but that still won’t help you to find a ring.

Pressure Classes of Flanges

The concept of flange ratings likes clearly. A Class 300 flange can handle more pressure than a Class 150 flange, because a Class 300 flange are constructed with more metal and can withstand more pressure. However, there are a number of factors that can impact the pressure capability of a flange.

The Pressure Class or Rating for flanges will be given in pounds. Different names are used to indicate a Pressure Class.

Flange Forging Process

Understanding customers requirement and ensuring to supply as per these requirements is realised with the help of quality assurance at Sunny Steel one of the best Flange Manufacturers in China , our product range include all types of flanges such as MS Flange ( Mild Steel ) , Raised face flange , Weld neck flange, Bellow Flange , and Flanges according to custom requirement.

In addition, we also can produce the DIN flange, and the forgings according to the customers drawings, for example, rings and shafts.

Types of Flanges

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