Category: Company News

What are the high requirements of pressure vessels for flanges?

As a pressure vessel, it must have the following characteristics, such as high-temperature resistance, corrosion resistance, leakage prevention, and easy repair. However, the flange interface of a pressure vessel is usually the only channel for handling materials and the interface for connecting to other facilities. The tightness of the butt joint seal of the pressure […]

Both high-pressure and low-pressure large diameters use welded neck flanges

The neck flange is divided into a threaded connection (wire connection) neck flange and welded neck flange. The small diameter of the low-pressure has a wire neck flange, and the high-pressure and low-pressure large diameters use the welded neck flange. The thickness of the neck flange with the same pressure and the diameter and number […]

Technical requirements for butt welding flanges

In the actual production and development of butt welding flanges, different methods and processes are used for production and production. According to the process methods and principles, it has important value and effect on different aspects, and certain elements are added in actual production. Increase the characteristics and value of carbon steel flanges, and express […]

There are two main processes for chemically treating the flange surface

There are two main processes for chemically treating the flange surface There are two main processes for chemically treating the surface of flanges: one is high-temperature oxidation, which is often referred to as flanges; the other is blackening at room temperature. With the advent of the era of industrialization, the petrochemical industry, power industry, metal […]

The principle of use of carbon steel flange

Carbon steel flanges are different from flanges that are not produced according to standard sizes, also known as second-standard flanges. Usually, some unscrupulous merchants will reduce the thickness of the flange and the outer diameter to achieve the purpose of saving materials. Steel or leftover steel is used to process flanges. Usually, this kind of […]