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The differences between butterfly check valves and swing check valves lie not only in their structural design but also in their typical applications. Although both valve types share the same functions—preventing backflow, enabling light-load pump starting, and reducing water hammer—their design characteristics and operational ranges differ. Both valve types feature a disc-shaped...
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1. What Is a Valve Welding Electrode? A valve welding electrode refers to a category of welding consumables specifically used for hardfacing, repair welding, and overlay welding of valve components, including the valve body, sealing surfaces (such as valve seats and valve discs), as well as welding joints between valves and pipelines. It is not a single product, but rather a general ...
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I. Improvement of Corrosion Resistance Resistance to Medium Corrosion: In various operating environments, valves are exposed to different media such as acids, alkalis, salt solutions, and corrosive gases. These media may corrode the metal surface of the valve, thereby reducing its service life. Electroplating a layer of corrosion-resistant metal or alloy—such as chromium, nickel, or zinc&mda...
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In seawater piping systems, globe valves can be used to control and isolate fluid flow, provided that the materials and corrosion protection design are suitable for seawater service conditions. Seawater contains a high concentration of chloride ions and dissolved oxygen. If the valve material is not properly selected, corrosion can occur rapidly. Therefore, when globe valves are used in sea...
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Valve pressure rating is one of the primary parameters used to determine whether a valve can safely operate in a specific piping system. In industrial applications, pressure class does not simply represent the maximum working pressure of a valve. The actual pressure capability depends on the pressure-temperature rating defined by standards such as ASME B16.34, as well as valve materials, design co...
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Start With the Application, Not the Valve Name Water treatment and industrial pipelines do not ask the same thing from a butterfly valve. In water systems, the usual priorities are compact installation, low operating torque, reliable shutoff, corrosion resistance, and simple maintenance. In industrial service, the selection often becomes more demanding. Pressure, temperature, media compatib...
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