Vanky

Gate valve strength test rising rod WCB material 150LB-FCValves

How to choose the material of the valves in the ammonium phosphate solution pipeline

Summary The results of macro and micromorphology and metallographic structure analysis of SS304 gate valve used for leakage of ammonium phosphate solution using metallographic microscope and scanning electron microscope are introduced, and the use of photoelectric direct reading spectrometer, X-ray fluorescence spectrometer and The NHO analyzer analyzes the gate valve material and the composition of the surface deposits. It summarizes the failure modes of the SS304 gate valve used in the ammonium phosphate solution pipeline as corrosion and fouling and points out why the SS316 valve is used in the ammonium phosphate solution pipeline. And put forward the corresponding countermeasures to solve the problem and the technical basis to prevent similar accidents.

Keywords  Gate valve, leakage, failure analysis, fouling, corrosion

FCValves metal face gate valve supplier

Analysis of common failure causes of gate valve and improvement measures

Abstract   Discussed the structural characteristics of commonly used gate valves, analyzed the cause of the accident from several aspects such as type selection, design, manufacture, installation, use, and maintenance, proposed the harm of abnormal pressure rise in the middle cavity to the valve, and summarized the protective measures. Keywords  gate valve; abnormal boost; design …

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Butterfly valve and gate valve supplier FCValves

How to choose gate valve and butterfly valve for water supply network

 Overview In water systems, engineering, such as urban pipeline network, seawater desalination, sewage treatment, water pipeline, and pumping station, gate valves and butterfly valves are used in large quantities as devices to stop the flow of media. In the system, the selection and use of valves are very important. If the valve selection is unreasonable, …

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Hydropower station inlet valve factory-TIELING FCV

Optimal design of hydraulic control check butterfly valve locking mechanism

Abstract   Introduced the lifting weight structure of the hydraulic control check butterfly valve and the mechanical and electromagnetic combined locking mechanism, and explained its composition, working principle, and characteristics. Keywords      Check valve; butterfly valve; heavy hammer; lock; principle   Overview   Many large water pump outlets use hydraulically controlled check butterfly valves to …

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FCV Complete set of butterfly valve equipment for water power generation

Supper size intell igent flow control device complete sets for butterfly valve

Summary This article introduces the performance and composition of the ultra-large intelligent flow control equipment manufactured by FCV Company, discusses the dynamic and static sealing characteristics of the DN4800 butterfly valve designed according to the actual working conditions, and summarizes the rigidity of the main body of the butterfly valve by using a computer. And …

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How to repair the inclination of the butterfly valve guidepost

  Summary    There is a large gap between the main butterfly plate and the auxiliary butterfly plate of the butterfly valve of the water turbine generator water intake pipe due to improper operation. Under the premise of not affecting the valve switching performance, it is proposed to perform local grinding treatment on the guidepost …

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