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Installation requirements for cryogenic valves Due to the special structure of cryogenic valves, the installation of cryogenic valves also has special requirements. Because of the long-neck bonnet of the cryogenic valve, cryogenic gate valves must be installed vertically upward, with the stem direction within a 45-degree angle. And it should also be avoided as much as possible to install...
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What is valve corrosion? Corrosion of valves is usually understood as the damage to the metal materials of the valve caused by the chemical or electrochemical environment. Since the corrosion appears in the spontaneous interaction between the metal and the surrounding environment, the focus of corrosion prevention is how to isolate the metal from the surrounding environment or more use of non...
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As winter approaches, the temperature gradually drops and the valves outsides are getting greater chance tobe froze. At this time, the pipeline will easily fail if not take some acts. And when it comes to some high-risk working conditions, accidents may also occur. Therefore, the anti-freezing treatment of valves is crucial to industrial equipment. Before th...
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As we all know that the valve body like carbon steel (WCB, WCC, LCB, LF2, A105), stainless steel (SS304, SS316, F304L, F316L), hastelloy (Alloy 20) etc., or even in the trim material always use metallic materials. Most of the corrosion of metallic materials occurs in the atmosphere, which contains corrosive components and corrosive factors such as oxygen, humidity, temperature changes and pollutan...
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Gate valves are available with a variety of disks. Classification of gate valves is usually made by the type disk used:Wedge type single gate valve,Resilient gate valve,Double gate type gate valve, or Parallel gate valve. 1）Wedge type single gate valve ①Simpler structure than resilient gate valve. (ii) At higher temperatures, the sealing performance is not as good as that of resilient gate valves ...
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1. Application of Knife Gate Valve 1. Mining, iron and steel industry: used for coal, slag slurry, etc; 2. Purification device: used for waste water, mud, dirt and clarified water with suspended solids; 3. Paper industry: used for pulp and feed water mixture of any concentration; 4. Ash removal of power station: used for ash slurry. 2. Performance of Knife Gate Valve 1. Local and remote control, r...
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