What is integral raised flange?

What is integral raised flange?

An integral raised flange connecting the pipe to the pipe is connected to the pipe end. There are holes in the flange, and the bolts connect the two flanges tightly. The flange is sealed with gasket. Flanged fittings are flanged fittings (flanges or adapters). It can be made of cast iron or threaded or welded. The flange joint consists of a pair of flanges, a washer and several bolts and nuts. The gasket is placed between the sealing surfaces of two flanges. After tightening the nut, the specific pressure on the gasket surface will deform when the specific pressure exceeds a certain value, and the uneven part on the sealing surface is filled to ensure tight connection and no leakage. Flange connection is a detachable connection. The connecting parts can be divided into vessel flange and pipe flange. According to the structure type, there are integral flange, loose flange and threaded flange.

Integral raised flange is a kind of flange connection. It is also a pipe flange with neck butt welding. Materials include carbon steel, stainless steel, alloy steel, etc. In various domestic standards, intermediate frequency is used to represent integral raised flange. It is mainly used in pipes with high pressure. The production process is usually casting.

Generally, flange: integral raised flange

1. Under high pressure. Sometimes integral flanges are used when the design pressure is so high that the reinforcing plate is not strong enough. In addition, the integral raised flange is more reliable than the common form of reinforcing plate and connecting pipe, because there are few additional welds, but the cost is relatively high. Under high pressure, for small size flange, if using common nozzle, the calculation of pipe wall may not pass, and integral flange is also considered.

2. Integral raised flange is suitable for small size flange. Some customers like to use integral flanges for flanges below 3 "because these flanges are usually connected to instruments and instruments, which can enhance the strength of the pipe wall.

Split flange, also known as split flange, is mainly used in hydraulic machinery with connecting pipe. The specification of split flange is: DN 15-dn80, including a, B, C, D, e, F, h, V and eight types.