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The working principle of the forged steel ball valve is to make the valve unblocked or blocked by rotating the valve stem. The ball valve is easy to switch, small in size, can be made into a large diameter, reliable in sealing, simple in structure, convenient in maintenance, and the sealing surface and spherical surface are often in a closed state, which is not easy to be eroded by the medium, and...
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The opening and closing part of the bellows seal globe valve is a plug-shaped disc, the sealing surface is flat or conical, and the disc moves linearly along the center line of the fluid. The movement form of the valve stem includes a lifting rod type and a lifting rotating rod type. The bellows seal globe valve is only suitable for full opening and full closing, and adjustment and throttling are ...
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Stainless steel gate valve is a device used to control the direction, pressure and flow of fluid in the fluid system. The material of stainless steel gate valve is an alloy composed of iron, chromium, carbon and many different elements. Iron is the main component element, and chromium is the main alloying element. Generally speaking, the chromium content must account for at least 11% to be called ...
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Stainless steel valve is made of stainless steel and has a handle, turbine, pneumatic, electric and other transmission structures. It is flexible and light to switch, compact in structure, light in weight, easy to heat preservation, easy to install, and has excellent sealing performance and corrosion resistance. Connection methods include welding, thread, flange, etc. Stainless steel valves are wi...
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With the advancement of valve technology, there are more and more types of valves. Globe valves are also used a lot of valves, and high pressure casting globe valves are the product of technological progress. Next, Dervos will give you a detailed introduction to the high pressure casting globe valve. Structural Features 1. The series of cast steel globe valves have reasonable structural design, st...
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In today's valve family, gate valve is relatively widely used. Among them, wedge type double gate valve and wedge type elastic gate valve are the most widely used, because they have the best sealing effect. Everything has its advantages and disadvantages. It is because of its good sealing effect that the pressure in the middle chamber will rise abnormally in some occasions. Abnormal boost pressure...
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