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How to select the right electric actuators for forged steel valve

Electric actuator of forged steel valve is an indispensable driving device for forged steel valve program control, automatic control and remote control. The movement process can be controlled by the stroke, torque or axial thrust. The working characteristics and utilization of the forged steel valve electric device depend on the type of forged steel valve, the operating specifications of the device and the position of the forged steel valve on the pipeline or equipment. 1. Forged steel valve electric actuators generally consist of the following parts: Specific motor, characterized by strong overload capability, large starting torque, small rotational inertia, short working […]

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What is a HFW steel pipe?

What is a HFW steel pipe? High frequency welded pipe is based on solid resistance heat energy. Resistor thermal welding, using high-frequency current is generated in the workpiece so that the surface of the workpiece weld zone is heated to the melting or close to the plastic state, then applied (or not applied) upsetting force is achieved for such a steel pipe of the metal combination. HFW steel pipe production rate, welding speed of up to 30m/min. It is mainly used for the manufacture of pipes welded longitudinal seam or spiral seam. The welded pipe used high-frequency welding process of […]

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What is a seamless steel tube?

What is a seamless steel tube? The seamless steel tube is a long strip of steel having a hollow section and no seams around it. Seamless steel tube is generally used for structural purposes and the OD is an important and exact number. Tubing size is specified by OD and the wall thickness (WT); and the measured OD and stated OD are generally within very close tolerances of each other. Seamless steel tube is usually more expensive than seamless steel pipe due to tighter manufacturing tolerances. 1 Characteristics 4 Pipes vs. Tubes 2 Types 5 Tube size 3 Process 6 Pipe size Characteristics And Uses Of Precision […]

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Difference between steel pipe and steel tube

What is a steel pipe? A steel pipe is a round hollow section manufactured by drawing a solid billet (in carbon, alloy, stainless or nickel alloy steel) through a piercing rod. Seamless pipes are considered superior to welded pipes as they are built using monolithic steel billets, with intrinsic mechanical strength, without seam welds. Seamless steel pipes are used for the transmission and distribution of oil, gas, steam, and chemicals. Stainless steel seamless pipes offer enhanced resistance to corrosion at high temperature and pressure. What is a steel tube? Steel tube can be divided into seamless steel tube and welded steel tube. Generally […]

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What is SSAW steel pipe?

What is SSAW steel pipe? Spiral submerged arc welded steel pipe refers to a metal pipe with a spiral seam welded by a submerged arc welding process. 1 Application 2 Characteristics 3 Production technology 4 Raw material 5 Process performance 6 Standard classification 1 Application of SSAW steel pipe Generally used in: welding into pipes for fluid transport, metal structures, pile foundations, etc. The products are widely used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, and are one of the 20 key products developed in China. For liquid transportation: water supply and drainage. […]

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Hot push forming process for stainless steel elbow

What is the hot push forming process for stainless steel elbow? The stainless steel elbow hot push forming process uses a special elbow pushing machine, a core mold and a heating device, so that the blank placed on the mold moves forward under the push of the pusher, is heated, expanded, and bent during the movement. The process of forming. The deformation characteristic of the hot thrust of stainless steel elbow is to determine the diameter of the blank according to the law of the volume change before and after plastic deformation of the metal material. The diameter of the […]

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What is hot rolled seamless steel pipe

What is hot rolled seamless steel pipe? According to the production method, seamless steel pipe is divided into hot-rolled seamless steel pipe and cold-rolled seamless steel pipe. Hot-rolled seamless steel pipe is a large category of seamless steel pipe. Hot rolling is relative to cold rolling, cold rolling is carried out rolling at room temperature, and hot rolling is carried out rolling at the recrystallization temperature. Seamless steel pipe is named relative to the welded steel pipe, seamless steel pipe is usually made of round steel perforation and reprocessing, welded steel pipe is usually welded by steel plate in different […]

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How to order a Stub End

What is Stub End? Stub End refers to the molding method of forming straight wall or flange with a certain angle along the edge of closed or non-closed curve on the plane part or curved surface part of the blank by using the function of the die. Flanging is a kind of stamping process. The Stub End, which essentially a short length of pipe, which has one end that is flared outwards and the other end prepared to be welded to pipe of the same Nominal Pipe Size (NPS), material and of a similar wall thickness The Lap Joint Flange, […]

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Types of flanges and flange connection

What are flanges? Flanges, also translated as rims, meaning symmetrical disc-like structures used to connect pipes, containers or fixed-shaft mechanical parts, usually with bolts and threaded structures for fixing . Flanges are disc-shaped parts that are most common in plumbing and flanges are used in pairs. In plumbing, flanges are primarily used for pipe connections. In the pipelines that need to be connected, a variety of flanges are installed, and the low-pressure pipelines can use wire-bonded flanges, and the welding flanges are used at pressures above 4 kg. A sealing point is added between the two flanges and then fastened […]

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What is a welded pipe?

What is a welded pipe? Welded pipe is also called welded steel pipe. It is a steel pipe made by welding and forming a steel plate or strip steel. It is usually 6 meters long. The welded steel pipe has simple production process, high production efficiency, many varieties and specifications, and low equipment investment, but the general strength is lower than that of seamless steel pipe. Since the 1930s, with the rapid development of high-quality strip continuous rolling production and the advancement of welding and inspection technology, the quality of welded joints has been continuously improved, the variety specifications of […]

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