Thick walled seamless petroleum casing

Elbow In the pipeline system, the elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are three kinds of 45° and 90°180° which are more commonly used. In addition, according to engineering needs, it also includes other abnormal angle elbows such as 60°.

The elbow is a kind of pipe fitting used at the turn of the pipeline. Among all the pipe fittings used in the piping system, the proportion is relatively large, about 80%. Generally, different forming processes are selected for elbows of different materials or wall thickness. The commonly used seamless elbow forming processes in manufacturing plants include hot pushing, stamping, and extrusion. So do you know what its hot forming process is? Let's follow the editor of Elbow for water treatment to have a simple understanding!

In pipeline systems, elbows are fittings that change the direction of the pipeline. According to angles, there are three most commonly used types: 45 ° and 90 ° and 180 °. In addition, according to engineering needs, there are also other abnormal angle elbows such as 60 °. The materials of elbows include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics. The methods of connecting to pipes include direct welding (the most commonly used method), flange connection, hot melt connection, electric melt connection, threaded connection, and socket connection. According to production processes, it can be divided into: welded elbows, stamped elbows, push made elbows, cast elbows, butt welded elbows, etc. Other names: 90 degree elbow, right angle bend, etc.

High pressure boiler pipes are used for heating surface pipes of low and medium pressure boilers (with a working pressure generally not exceeding 5.88Mpa and a working temperature below 450 ℃); Used for heating surface pipes, economizers, superheaters, reheaters, petrochemical industry pipes, etc. of high-pressure boilers (with working pressure generally above 9.8Mpa and working temperature between 450C and 650 ℃).

A concentric reducer is a type of pipe that is directly welded to a steel pipe. The main manufacturing standards for concentric reducers are generally GB/T12459, GB/T13401, ASME B16.9, SH3408, SH3409, HG/T21635, HG/T21631, and SY/T0510. Corresponding to the concentric reducer, there are also eccentric reducers made of carbon steel, alloy steel, and stainless steel.

Hydraulic support pipes are made of high-quality carbon structural steel with appropriate addition of one or several alloy elements to improve the strength, toughness, and hardenability of the steel. After being made, this type of steel usually needs to undergo heat treatment such as quenching and tempering, chemical heat treatment, and surface quenching.

Equal diameter cross, commonly referred to as a professional term, refers to pipe fittings and pipeline connectors, used in main pipelines where branch pipes are required. Equal diameter cross is a type of cross, which can be divided into two types: general equal diameter cross and differential diameter cross. Named because the four ends can be connected to the pipe. In industry, there is a high pressure requirement for this type of pipe fitting, with a high pressure of up to 600 kilograms. In daily life, the pressure of water pipes is relatively low, usually 16 kilograms. Equal diameter spools can be used in various industries and can be divided into the following categories according to different types: 1. According to the production method, it can be divided into top making, pressing, forging, casting, etc. 2. According to manufacturing standards, it can be divided into national standards, electrical standards, water standards, American standards, German standards, Japanese standards, Russian standards, etc. An equal diameter cross fitting with the same diameter at both ends and a branch pipe with a different diameter from the other two is called a reducing cross. The representation method is as follows: for an equal diameter cross, for example, a "T3" cross represents an equal diameter cross with an outer diameter of 3 inches. For reducing spools, such as "T4 × four × 3.5 "represents a reducing cross with a diameter of four inches and a diameter of 3.5 inches. The material is generally 10 # 20 # A3 Q235A 20g 20G 16Mn ASTM A234 ASTM A105 ASTM A403, etc. The cross has an outer diameter range of 2.5" -60 ", and is welded from 26" -60 ". The wall thickness is 28-60mm. The pressure classes are ch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS

Electric regulating valve is a valve used to regulate fluid flow, which can achieve flow regulation by driving the valve opening change through an electric actuator. Electric control valves are usually composed of valve bodies, electric actuators, controllers, and other components [1]. The structural diagram can refer to relevant design manuals or product samples, generally including valve sealing surfaces, valve seats, valve cores, valve discs, and other parts. The working principle of an electric regulating valve is to output and control signals from the electric actuator through a controller, thereby achieving valve opening adjustment. When it is necessary to adjust the fluid flow rate, the controller will issue a command to the electric actuator, which drives the change in valve opening through an internal mechanism to change the fluid flow rate

Bronze globe valves are valves with a shutoff valve (disc) moving along the center line of the seat.Depending on this movement of the disc, the variation of the seat orifice is proportional to the disc travel.Due to the relatively short stem opening or closing stroke of this type of valve, and the very reliable cutting function, and the seat port changes in a direct proportion to the stroke of the disc, it is very suitable for flow regulation.Therefore, this type of valve is ideal for cutting or regulating and throttling.