Flanges, or flanges, are symmetrical disk-like structures used to connect pipes or fixed shaft mechanical parts. They are usually fixed with bolts and threads. Including flange and stainless steel flange elbow, give you a brief introduction to the flange and pipe connection of several ways.
The first kind: flat welded steel flange
Flat welded steel flanges are suitable for the connection of carbon steel pipes whose nominal pressure is not more than 2.5Mpa. The sealing surface of flat welded steel flanges can be made into smooth type, concave-convex type and tenon groove type. The application amount of smooth flat-welded flange is mostly used in the case of moderate medium conditions, such as low-pressure non-purification compressed air and low-pressure circulating water. Its advantage is that the price is relatively cheap.
Second, butt-welded steel flange
Butt-welding steel flange for flange and pipe welding, its structure is reasonable, strength and stiffness is large, can withstand high temperature and high pressure and repeated bending and temperature fluctuations, reliable sealing, nominal pressure of 0.25 ~ 2.5Mpa butt-welding flange using concave and convex sealing surface.
Third, socket welding flange
Socket welding flanges are often used in pipelines with PN≤10.0MPa and DN≤40.

The fourth kind, loose sleeve flange
Loose sleeve flange is commonly known as looper flange, which is divided into welding ring looper flange, flanging looper flange and butt welding looper flange. Usually used in the medium temperature and pressure are not high and the medium corrosion is strong. When the medium is highly corrosive, the part of the flange that contacts the medium (flanged nipple) is high-grade materials such as stainless steel that are corrosion resistant, while the outer part is clamped by the flange ring of low-grade materials such as carbon steel to achieve sealing.
Fifth, integral flange
Integral flanges are often flanges and equipment, pipes, pipe fittings, valves, etc., made into one, this type is commonly used in equipment and valves.
Reminding everyone, because of the stainless steel flange elbow and tube sleeve connection method is different, the process characteristics are also very different, we can choose according to their own actual needs to choose the appropriate flange components, do not be greedy for a moment cheap and popular safety risks to the whole pipeline.