What are the advantages of carbon steel pipe fittings? Carbon steel pipe fittings are a new type of seamless steel pipe connection pipe, also called clamp connection, which has many advantages. The design standard of automatic sprinkler and automatic fire extinguishing system clearly states that the connection of system pipelines should use pipe trench connectors or threaded mouths and loose flanges; pipelines with a diameter equal to or exceeding 100 mm in the system should Use flanges or pipe trench connectors to connect. Let me take you to understand the advantages of carbon steel pipe fittings.

The interface mode of carbon steel pipe fittings has unique softness, which makes the pipeline have the ability to resist vibration, shrinkage and expansion. Compared with welding and loose flanges, the reliability of the pipeline system is improved and the temperature is more suitable. The change, thus protecting the various valves of the pipeline, also reduces the damage to the parts caused by the stress of the pipeline. The application of connection technology of plastic-lined pipe fittings. Make the complex pipeline connection process simpler, more convenient and more convenient. The pipeline connection technology has taken a big step forward. The hot-bending elbow is a kind of galvanized steel pipe fitting elbow that adopts the pressing process. The manufacturing specifications of hot-bending elbows can be divided into national standards, electric standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc. Hot-bending elbows are used in places where pipelines need to change directions, so they are widely used and mainly used in chemical plants, civil, construction, industrial production and other industries.

Our company specializes in the production of hot-bending elbows. The hot-bending elbows are formed by heating the water pipes with special equipment, and then cut and heated to above the critical pressure. After a period of heat insulation, they are quickly put into heat treatment agents. In the middle, the temperature is suddenly reduced, and the bent pipe is made by exceeding the critical value of the cooling rate of extreme cooling.

bend

The use of molds to suppress stainless steel pipes with straight sections has the advantage of high production efficiency and easy adjustment of molds. In order to avoid wrinkling and flattening of the wall, for thick-walled tubes with a diameter of more than 11 mm, fillers must be filled before bending or cores should be placed from both sides. There are also some disadvantages in the mold bending method. For example, at the beginning of contact between the rolled tube and the die base, the tube cross section will have some fluctuations, which makes the quality of the elbow less than ideal. In addition, the bending radius, angle of view and bending shape are also subject to certain restrictions, so it is less used in production.

Suppressing stainless steel elbow is a processing method that uses a suppressing die set to bend the finish-rolled pipe on a four-column hydraulic press. It is divided into two types: pressing and cold extrusion. Elbows and their copper and aluminum bends, etc. The diameter of the suppressed elbow is 25-406mm, and the wall thickness is 2.5-40mm. The bending radius is R≥D, and R=1.5D is generally available.