Flange, or flange, is a symmetrical disk-like structure used to connect a pipe or a fixed shaft mechanical part, usually having a bolt and a thread structure for fixing. including flange and stainless steel flange elbow, give you a brief introduction of the flange and pipe connection in several ways.
First type, flat welded steel flange
Flat-welded steel flange is suitable for the nominal pressure of not more than 2.5MPa of carbon steel pipe connection, flat welding flange sealing surface can be made into a smooth, concave-convex and tenon groove type three kinds. Smooth-type flat welding flange is the most widely used in medium conditions, such as low pressure non-purified compressed air, low pressure circulating water, its advantage is that the price is relatively cheap.
The second type, butt welded steel Flange
For welding steel flange with Uffalan and pipe welding, the structure is reasonable, strength and stiffness, withstand high temperature and pressure and repeated bending and temperature fluctuations, reliable sealing, nominal pressure for the 0.25~2.5mpa flange using concave-convex sealing surface.
The third kind of socket welding flange
Socket welding flanges are often used in pn≤10.0mpa,dn≤40 pipelines.
Fourth type, loose sleeve flange
Pine Sleeve flange commonly known as live sets of flanges, separate welding ring live sets of flange, flanging flange and the butt of live sleeve flange. Often used in medium temperature and pressure are not high, and the medium corrosive strong situation. When the medium is strong corrosive, the flange contact medium part (flanging short section) for corrosion-resistant high-grade materials such as stainless steel materials, while the external use of low-grade materials such as carbon steel flange ring CLAMP it to achieve seal.
Fifth type, integral flange
The whole flange is often made of flange and equipment, pipe, pipe fittings, valves and so on, this type is used in equipment and valves.
To remind you that, due to stainless steel flange elbow and sleeve connection methods, process characteristics are very different, we can choose according to their actual needs to choose the appropriate flange components, not because of greed for a while cheap and the entire pipeline popular security risks.