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4. The analysis of test results 4.1 The morphology of microscopic surface cross-section of the coating The surface cross-sectional morphology is closely related to the matching properties, wear resistance,...

The strengthening process of depositing CrN coating on Cr3C2-NiCr coating to form CrN or Cr3C2-NiCr composite coating by using supersonic flame spraying (HVOF) combined with physical vapor deposition...

The working principle, structural features and product performance of the quick lift metal seated plug valve are introduced, and the fast transmission systems are composed of hydraulic actuators through...

4. Measures for avoiding internal leakages For small-diameter forged steel globe valves with a size less than and equal to DN50, the integrated forging process is adopted for the connection between...

The internal leakage in the use of globe valves is summarized and analyzed, and the measures to solve the problems are put forward. A globe valve is an indispensable fluid control product in modern...

The working principle, structural design, finite element analysis and manufacturing process of the main parts of the lift metal-seated plug valve are explained. 1. Overview The plug valve has the...

1. Overview A 2.4Mt/a delayed coking unit adopts the process of two furnaces and four towers, and normally produces green coke for 24 hours. There are 16 high-temperature valves on the device. The medium...

Scouring Many factors that affect the scouring of the fluid particle, such as particle sizes, content, density and velocity in the fluid medium. For places with easy wear, the optimal valve is determined...

Dedicated valves refer to valves that can be used in various special environments and adapt to various complex working conditions. A dedicated valve is a general mechanical product widely used in the...

3. Strengthening the maintenance and management of valves in gas transmission stations 3.1 Paying attention to the selection and training of valve manufacturers The valve is a very important device for...

Abstract: The valve plays a very important role in the gas transmission station. According to different conditions and environments, the valve also plays different roles in the actual use process. Therefore,...

Stainless steel valves are usually used in situations where the working medium is corrosive to a certain extent. For any kind of valve material, the ability to resist the corrosion of the working medium...